Browse Source
sci-libs/{{c,}blas,lapack{,e}}-reference: Remove.
Remove BLAS/LAPACK migration scripts.
Remove outdated documentation on BLAS/LAPACK.
Update README.md to point to the new framework in ::gentoo.
Reference: https://wiki.gentoo.org/wiki/Blas-lapack-switch
Closes: https://github.com/gentoo/sci/issues/805
Closes: https://github.com/gentoo/sci/issues/926
Closes: https://github.com/gentoo/sci/issues/734
Closes: https://github.com/gentoo/sci/issues/897
Closes: https://github.com/gentoo/sci/issues/925
Package-Manager: Portage-2.3.69, Repoman-2.3.12
Signed-off-by: Benda Xu <heroxbd@gentoo.org>
master
Benda Xu
2 years ago
51 changed files with 4 additions and 3929 deletions
@ -1,492 +0,0 @@ |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> |
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|
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<guide link="/proj/en/science/blas-lapack.xml"> |
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<title>Using multiple versions of BLAS and LAPACK with Gentoo/Linux</title> |
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|
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<author title="Author"> |
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<mail link="bicatali@gentoo.org">Sébastien Fabbro</mail> |
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</author> |
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<author title="Author"> |
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<mail link="markusle@gentoo.org">Markus Dittrich</mail> |
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</author> |
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<author title="Editor"> |
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<mail link="nightmorph@gentoo.org">Joshua Saddler</mail> |
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</author> |
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|
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<abstract> |
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This guide explains the use of the different implementations of the BLAS |
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and LAPACK libraries that are available via Portage. |
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</abstract> |
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|
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<!-- The content of this document is licensed under the CC-BY-SA license --> |
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<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> |
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<license/> |
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|
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<version>1.0</version> |
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<date>2007-10-22</date> |
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|
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<chapter> |
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<title>Introduction</title> |
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<section> |
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<body> |
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|
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<p> |
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The Basic Linear Algebra Subroutines (BLAS) and Linear Algebra PACKage (LAPACK) |
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are well designed linear algebra software libraries developed by the |
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High Performance Computing (HPC) community. BLAS |
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implements dense matrix and vectors products, while LAPACK provides routines for |
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solving systems of linear equations. Both are widely used in |
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many scientific applications and it is, therefore, important to |
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have efficient implementations available. |
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</p> |
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|
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<p> |
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Originally written in FORTRAN 77, a number of additional language |
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wrappers have been developed for languages like C, C++, FORTRAN 95, and others. |
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The following legacy libraries are available via the reference ebuilds: |
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</p> |
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|
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<ul> |
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<li> |
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<uri link="http://netlib.org/blas">BLAS</uri>: FORTRAN 77 implementation of |
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BLAS |
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</li> |
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<li> |
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<uri link="http://netlib.org/blas">CBLAS</uri>: C implementation of BLAS |
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</li> |
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<li> |
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<uri link="http://netlib.org/lapack">LAPACK</uri>: FORTRAN 77 implementation |
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of LAPACK |
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</li> |
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</ul> |
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|
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<p> |
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In addition, Gentoo provides a number of optimized BLAS and LAPACK implementations |
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that will be described below. Different implementations are bundled together with |
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Gentoo's <c>eselect</c> system and the widely used <c>pkg-config</c> tool. |
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</p> |
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|
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<p> It is important to note that if you require, e.g., a well performing |
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BLAS implementation, simply emerging X over Y often is not enough. Rather, you will have |
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to carefully benchmark your applications since performance may depend |
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on many factors, |
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such as hardware or network. |
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If you are simply looking for a well performing and well tested |
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implementation, the reference ebuilds will likely be your best choice. |
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</p> |
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|
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|
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</body> |
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</section> |
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</chapter> |
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|
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<chapter> |
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<title>For Users</title> |
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<section> |
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<title>Installing</title> |
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<body> |
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|
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<p> |
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If best possible performance is not of paramount importance for you |
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and you simply |
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need BLAS and/or LAPACK, just emerge the virtual packages: |
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</p> |
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|
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<pre caption="Installing"> |
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# <i>emerge blas cblas lapack</i> |
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</pre> |
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|
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<p> |
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These will install the reference legacy packages from |
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<uri>http://netlib.org</uri>. They are well tested, easy to debug |
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implementations. They should satisfy most users; if they're all you need, you're |
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done reading. |
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</p> |
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|
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<p> |
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However, if: |
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</p> |
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|
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<ul> |
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<li>BLAS/LAPACK are critical for the speed of your applications</li> |
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<li>you absolutely need to build the fastest computer</li> |
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<li>you want to help Gentoo sci project to improve their packages</li> |
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</ul> |
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|
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<p> |
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... then read on, and be sure to file bugs both to Gentoo and upstream. |
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</p> |
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|
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<p> |
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There is a number of optimized implementations of these libraries in the Portage |
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tree: |
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</p> |
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|
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<ul> |
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<li> |
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<uri link="http://math-atlas.sourceforge.net">ATLAS</uri>: Automatically |
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Tuned Linear Algebra Software is an open-source package that empirically |
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tunes the library to the machine it is being compiled on. It provides BLAS |
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(FORTRAN 77 and C), and LAPACK implementations on various architectures. |
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</li> |
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<li> |
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<uri |
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link="http://www.tacc.utexas.edu/resources/software/software.php">GotoBLAS</uri>: |
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Goto BLAS provide open-source, free for academic use, hand-coded |
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machine language, processor optimized versions of the FORTRAN 77 BLAS |
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routines. Claims to be the fastest BLAS. |
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</li> |
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<li> |
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<uri link="http://developer.intel.com/software/products/mkl/">MKL</uri>: |
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Intel® Math Kernel Library is a closed-source but free package for |
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non-commercial use containing BLAS (FORTRAN 77 and C), LAPACK optimized for |
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Intel® based architectures: x86, amd64 and ia64. |
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</li> |
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</ul> |
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|
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<p> |
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Usually performance gain is noticeable mainly with BLAS, since LAPACK routines |
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depend on BLAS kernels. |
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</p> |
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|
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</body> |
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</section> |
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<section> |
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<title>Compiling and linking with installed libraries</title> |
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<body> |
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|
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<p> |
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We took great care to make sure that each package provides consistent pkg-config files. |
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Hence, compiling and linking with BLAS/LAPACK should be simple and straightforward: |
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</p> |
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|
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<pre caption="Compiling and linking BLAS/LAPACK"> |
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# <i>pkg-config --libs blas</i> <comment>(To link with FORTRAN 77 BLAS library)</comment> |
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# <i>pkg-config --cflags cblas</i> <comment>(To compile against C BLAS library)</comment> |
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# <i>pkg-config --libs cblas</i> <comment>(To link with C BLAS library)</comment> |
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# <i>pkg-config --libs lapack</i> <comment>(To link with FORTRAN 77 LAPACK library)</comment> |
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</pre> |
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|
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<p> |
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<c>pkg-config</c> files are available for whichever implementation you select with <c>eselect</c>. |
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More information on using <c>pkg-config</c> can be obtained with <c>man pkg-config</c>. |
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</p> |
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|
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</body> |
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</section> |
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<section> |
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<title>Choosing libraries</title> |
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<body> |
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|
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<p> |
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You can easily switch BLAS, CBLAS and LAPACK implementations with |
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<c>eselect</c>. At this point, you probably have <c>eselect-blas</c>, |
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<c>eselect-cblas</c> and <c>eselect-lapack</c> installed. If you do not, |
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install them now! Using eselect, you can view which implementations of CBLAS |
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are available. |
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</p> |
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|
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<pre caption="Viewing available implementations"> |
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# <i>eselect cblas list</i> |
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Installed CBLAS for library directory lib64 |
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[1] atlas |
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[2] atlas-threads |
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[3] gsl |
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[4] mkl-threads * |
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[5] reference |
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</pre> |
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|
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<p> |
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The implementation marked with an asterisk (*) is the currently |
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selected implementation. To switch implementations, run: |
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</p> |
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|
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<pre caption="Switching to the ATLAS implementation of LAPACK"> |
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# <i>eselect lapack set atlas</i> |
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</pre> |
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|
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<p> |
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To learn more about the <c>eselect</c> tool, visit the |
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<uri link="http://www.gentoo.org/proj/en/eselect/user-guide.xml">eselect guide</uri> |
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</p> |
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|
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<p> |
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When selecting blas, cblas or lapack profiles try to avoid mixing |
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different implementations since we don't have any mechanism to enforce |
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reasonable profiles. However, here is a list of well performing |
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profile combinations that have been used successfully in the past: |
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</p> |
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<ul> |
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<li> Most CPUs: |
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<ul> |
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<li>blas,cblas: atlas (or atlas-threads with multi-processor)</li> |
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<li>lapack:atlas</li> |
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</ul> |
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</li> |
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<li> Most CPUs: |
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<ul> |
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<li>blas: goto </li> |
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<li>cblas,lapack: reference</li> |
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</ul> |
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</li> |
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<li> AMD based CPUs: |
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<ul> |
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<li>cblas: reference</li> |
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</ul> |
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</li> |
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<li> Intel based CPUs: |
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<ul> |
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<li>blas,cblas,lapack: mkl-threads</li> |
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</ul> |
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</li> |
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</ul> |
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|
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</body> |
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</section> |
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|
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<section> |
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<title>Choosing a compiler</title> |
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<body> |
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|
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<p> |
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Most of the libraries can compile with both the GNU compiler collection and the |
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Intel® compilers on the x86, amd64 and ia64 architectures. By default, you are |
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probably using <c>gcc</c>. You can also compile the <c>*-reference</c> packages |
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with <c>ifort</c> and <c>icc</c>. To do this, you need to define the F77 |
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environment variable and don't forget the FFLAGS. |
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</p> |
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|
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<pre caption="Using non-GCC compilers"> |
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# <i>F77=ifort FFLAGS="-O2 -mp" emerge blas-reference</i> |
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</pre> |
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|
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<p> |
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Depending on your hardware, a small performance gain can be noticed thanks to |
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vectorization. The <c>-mp</c> flag maintains floating-point precision, since by |
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default ifort is pretty aggressive on floating point arithmetic, and we are |
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actually compiling a math package. Try <c>man ifort</c> to see additional flags |
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to fit your hardware. |
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</p> |
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|
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<p> |
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Some of the implementations let you specify the Intel® C compiler as |
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well. Please beware that not all libraries compile with all |
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combinations. You should receive an error during the emerge in case you have |
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chosen an incompatible combination. |
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</p> |
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|
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<p> |
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As usual for Gentoo, there are many combinations of USE flags and |
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compilers with which you could compile a package. Unfortunately |
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switching compilers between BLAS and LAPACK might not be always |
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compatible. For example: |
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</p> |
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|
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<pre caption="Incompatible combinations"> |
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# <i>F77=gfortran FFLAGS="-O2" emerge lapack-reference</i> |
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</pre> |
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|
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<p> |
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This will most likely break things or not even compile. |
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</p> |
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|
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<p> |
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Try to be consistent in your choice. Stay with the GCC most of the time will |
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avoid you some trouble, unless you want to use the MKL, in which case the Intel® |
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C and FORTRAN compilers make a good combination. |
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</p> |
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|
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</body> |
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</section> |
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<section> |
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<title>Documentation</title> |
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<body> |
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|
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<p> |
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If you need BLAS or LAPACK to develop your own programs, the documentation |
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becomes pretty handy. Setting the USE="doc" flag for the corresponding BLAS or |
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LAPACK package will install man pages and quick reference sheets from the |
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<c>app-doc/blas-docs</c> and <c>app-doc/lapack-docs</c> packages. They are |
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standard and valid for all implementations. For optimized packages, the |
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USE="doc" flags will usually install extra doc in PDF or HTML format. |
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</p> |
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|
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</body> |
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</section> |
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</chapter> |
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|
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<chapter> |
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<title>For Developers</title> |
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<section> |
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<title>Providing new implementations</title> |
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<body> |
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|
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<p> |
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The Portage tree contains many ebuilds that depend on the BLAS/CBLAS/LAPACK |
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libraries. As there is more than one possible implementation, the Gentoo |
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Scientific Project reorganized all the packages to provide <c>virtual/blas</c>, |
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<c>virtual/cblas</c>, and <c>virtual/lapack</c>. All ebuilds using BLAS should |
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depend on this virtual package, unless it is explicitly known to break with |
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different BLAS implementations. |
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</p> |
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|
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<p> |
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To work with Gentoo's configuration tools |
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<c>app-admin/eselect-{blas,cblas,lapack}</c>, and the virtual, every ebuild that |
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installs a BLAS implementation must fulfill following requirements: |
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</p> |
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|
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<ol> |
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<li> |
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The ebuild must install an eselect file for each profile it provides. The |
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libraries should link to the ones in <path>/usr/$(get_libdir)</path> |
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directories and the include files in <path>/usr/include</path>: |
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<ul> |
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<li> |
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<path>libblas.so[.0]</path> - Shared object for FORTRAN BLAS |
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applications |
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</li> |
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<li> |
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<path>libblas.a</path> - Static library for FORTRAN BLAS applications |
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</li> |
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<li> |
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<path>libcblas.so[.0]</path> - Shared object for C/C++ CBLAS applications |
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</li> |
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<li> |
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<path>libcblas.a</path> - Static library for C/C++ CBLAS applications |
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</li> |
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<li><path>cblas.h</path> - Include header for C/C++ applications</li> |
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<li> |
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<path>liblapack.so[.0]</path> - Shared object for FORTRAN LAPACK |
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applications |
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</li> |
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<li> |
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<path>liblapack.a</path> - Static library for FORTRAN LAPACK applications |
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</li> |
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</ul> |
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</li> |
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<li> |
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The ebuild must install a <path>blas.pc</path>, <path>cblas.pc</path> and/or |
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<path>lapack.pc</path> pkg-config file and therefore RDEPEND on |
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<c>dev-util/pkgconfig</c>. They should also be included in the eselect |
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files, and link to the <path>/usr/$(get_libdir)/pkgconfig</path> directory: |
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<ul> |
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<li><path>blas.pc</path> - BLAS pkg-config file</li> |
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<li><path>cblas.pc</path> - CBLAS pkg-config file</li> |
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<li><path>lapack.pc</path> - LAPACK pkg-config file</li> |
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</ul> |
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</li> |
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<li>Be included in the virtual package as a possible provider: |
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<ul> |
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<li><c>virtual/blas</c> - BLAS virtual package</li> |
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<li><c>virtual/cblas</c> - CBLAS virtual package</li> |
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<li><c>virtual/lapack</c> - LAPACK virtual package</li> |
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</ul> |
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</li> |
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</ol> |
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|
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<p> |
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The easiest way of understanding all this is probably getting inspiration from |
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one of the available packages. Currently the Portage tree provide the following |
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virtuals: |
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</p> |
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|
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<table> |
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<tr> |
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<th>Package name</th> |
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<th>virtual/blas</th> |
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<th>virtual/cblas</th> |
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<th>virtual/lapack</th> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/blas-atlas</c></ti> |
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<ti>*</ti> |
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<ti>*</ti> |
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<ti></ti> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/blas-goto</c></ti> |
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<ti>*</ti> |
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<ti></ti> |
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<ti></ti> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/blas-reference</c></ti> |
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<ti>*</ti> |
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<ti></ti> |
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<ti></ti> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/cblas-reference</c></ti> |
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<ti></ti> |
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<ti>*</ti> |
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<ti></ti> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/gsl</c></ti> |
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<ti></ti> |
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<ti>*</ti> |
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<ti></ti> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/lapack-atlas</c></ti> |
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<ti></ti> |
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<ti></ti> |
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<ti>*</ti> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/lapack-reference</c></ti> |
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<ti></ti> |
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<ti></ti> |
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<ti>*</ti> |
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</tr> |
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<tr> |
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<ti><c>sci-libs/mkl</c></ti> |
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<ti>*</ti> |
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<ti>*</ti> |
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<ti>*</ti> |
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</tr> |
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</table> |
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|
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</body> |
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</section> |
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<section> |
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<title>Packages with BLAS/LAPACK dependencies</title> |
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<body> |
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|
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<p> |
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Simply use <c>virtual/{blas,cblas,lapack}</c> as a [R]DEPEND. To build some |
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packages, you might need to use the pkg-config tool. If you are lucky, the |
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package uses autotools together with common BLAS and LAPACK M4 macros.In this |
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case, the configuration step becomes simple. For example: |
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</p> |
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|
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<pre caption="Sample package configuration"> |
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<keyword>econf</keyword> --with-blas="<var>$(pkg-config --libs blas)</var>" |
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</pre> |
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|
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<impo> |
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Don't forget to add <c>dev-util/pkgconfig</c> in DEPEND. |
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</impo> |
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|
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</body> |
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</section> |
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</chapter> |
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|
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<chapter> |
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<title>In the near future</title> |
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<section> |
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<body> |
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|
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<p> |
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We plan to include more standard BLAS, LAPACK libraries: BLAS 95, LAPACK 95, |
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Sparse BLAS, ScaLAPACK. If you feel inclined to write an ebuild for these, you |
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are more than welcomed to file it on our <uri |
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link="http://bugs.gentoo.org">Bugzilla</uri>. |
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</p> |
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|
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</body> |
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</section> |
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</chapter> |
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</guide> |
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@ -1,530 +0,0 @@ |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> |
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|
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<guide link="/proj/en/science/linalg.xml"> |
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<title>Linear Algebra on Gentoo</title> |
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|
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<author title="Author"> |
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<mail link="bicatali@gentoo.org">Sébastien Fabbro</mail> |
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</author> |
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|
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<abstract> |
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This guide explains the use of linear algebra libraries and focus on |
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how to use the different implementations of BLAS and LAPACK available on Gentoo. |
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</abstract> |
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|
|||
<!-- The content of this document is licensed under the CC-BY-SA license --> |
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<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> |
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<license/> |
|||
|
|||
<version>1.0</version> |
|||
<date>2010-12-22</date> |
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|
|||
<chapter> |
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<title>Introduction</title> |
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<section> |
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<body> |
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|
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<p> |
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There are <uri link="http://en.wikipedia.org/wiki/List_of_numerical_libraries">many</uri> |
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performant numerical libraries available. |
|||
The Basic Linear Algebra Subprograms (BLAS) and the Linear Algebra PACKage (LAPACK) |
|||
are well designed linear algebra libraries developed by the |
|||
High Performance Computing (HPC) community. BLAS is an API of dense |
|||
matrix and vectors products, while LAPACK provides routines for |
|||
solving systems of linear equations. Both are widely used in |
|||
many scientific applications and it is, therefore, important to |
|||
have efficient implementations available. |
|||
</p> |
|||
|
|||
<p> |
|||
BLAS and LAPACK were originally written in FORTRAN 77. Since then, a |
|||
number of additional language wrappers have been developed for |
|||
languages like C, C++, FORTRAN 95, Java, Python, etc... |
|||
Netlib offers exact implementations of the APIs and they are called |
|||
"reference" libraries. |
|||
</p> |
|||
|
|||
<ul> |
|||
<li> |
|||
<uri link="http://www.netlib.org/blas/">BLAS</uri>: FORTRAN 77 and C |
|||
(CBLAS) implementations of BLAS |
|||
</li> |
|||
<li> |
|||
<uri link="http://www.netlib.org/lapack/">LAPACK</uri>: FORTRAN 77 and |
|||
C (LAPACKE) implementations of LAPACK |
|||
</li> |
|||
</ul> |
|||
|
|||
<p> |
|||
|
|||
</p> |
|||
|
|||
<ul> |
|||
<li> |
|||
<uri link="http://www.netlib.org/blacs/">BLACS</uri>: FORTRAN 77 and C |
|||
implementations of BLACS |
|||
</li> |
|||
<li> |
|||
<uri link="http://www.netlib.org/scalapack/">ScaLAPACK</uri>: FORTRAN 77 and |
|||
C implementations of PBLAS and ScaLAPACK |
|||
</li> |
|||
</ul> |
|||
|
|||
<p> |
|||
In addition, Gentoo provides a number of optimized implementations |
|||
of the above linear algebra libraries that will be described |
|||
below. You can switch between implementations with the |
|||
Gentoo's <c>eselect</c> system and the widely used <c>pkg-config</c> |
|||
tool. |
|||
</p> |
|||
|
|||
<p> |
|||
It is important to note that if you require, e.g., a well performing |
|||
BLAS implementation, simply emerging X over Y often is not enough. Rather, you will have |
|||
to carefully benchmark your applications since performance may depend |
|||
on many factors, |
|||
such as hardware or network. |
|||
If you are simply looking for a well performing and well tested |
|||
implementation, the reference ebuilds will likely be your best choice. |
|||
</p> |
|||
|
|||
|
|||
</body> |
|||
</section> |
|||
</chapter> |
|||
|
|||
<chapter> |
|||
<title>For Users</title> |
|||
<section> |
|||
<title>Installing</title> |
|||
<body> |
|||
|
|||
<p> |
|||
If best possible performance is not of paramount importance for you |
|||
and you simply need BLAS and/or LAPACK, just emerge the virtual |
|||
package: |
|||
</p> |
|||
|
|||
<pre caption="Installing"> |
|||
# <i>emerge lapack</i> |
|||
</pre> |
|||
|
|||
<p> |
|||
This will install both <><> and <><> the reference packages from |
|||
<uri>http://www.netlib.org/</uri> . They are well tested, easy to debug |
|||
implementations. They should satisfy most users; if they're all you need, you're |
|||
done reading. |
|||
</p> |
|||
|
|||
<p> |
|||
However, if: |
|||
</p> |
|||
|
|||
<ul> |
|||
<li>linear algebra libraries are critical for the speed of your applications</li> |
|||
<li>you absolutely need to build the fastest computer</li> |
|||
<li>you want to help Gentoo sci project to improve their packages</li> |
|||
</ul> |
|||
|
|||
<p> |
|||
... then read on, and be sure to file bugs both to Gentoo and upstream. |
|||
</p> |
|||
|
|||
<p> |
|||
There is a number of optimized implementations of these libraries in the Portage |
|||
tree: |
|||
</p> |
|||
|
|||
<ul> |
|||
<li> |
|||
<uri link="http://math-atlas.sourceforge.net">ATLAS</uri>: Automatically |
|||
Tuned Linear Algebra Software is an open-source package that empirically |
|||
tunes the library to the machine it is being compiled on. It provides BLAS |
|||
(FORTRAN 77 and C), and LAPACK implementations on various architectures. |
|||
</li> |
|||
<li> |
|||
<uri |
|||
link="http://www.tacc.utexas.edu/tacc-projects/gotoblas2/">GotoBLAS</uri>: |
|||
Goto BLAS provides open-source, free for academic use, hand-coded |
|||
machine language, processor optimized versions of the FORTRAN 77 |
|||
and C BLAS routines. Still claims to be the fastest BLAS. |
|||
</li> |
|||
<li> |
|||
<uri link="http://software.intel.com/en-us/articles/intel-mkl/">MKL</uri>: |
|||
Intel® Math Kernel Library is a closed-source but free package for |
|||
non-commercial use on Linux systems containing implementations of all the linear |
|||
algebra libraries mentioned here. |
|||
</li> |
|||
</ul> |
|||
|
|||
<p> |
|||
Usually performance gain is noticeable mainly with BLAS, since LAPACK routines |
|||
depend on BLAS kernels. |
|||
</p> |
|||
|
|||
</body> |
|||
</section> |
|||
|
|||
|
|||
<section> |
|||
<title>Developping with the installed linear algebra libraries</title> |
|||
<body> |
|||
|
|||
<p> |
|||
We took great care to make sure that each package provides |
|||
consistent pkg-config files generated by us. |
|||
Compiling and linking becomes straightforward: |
|||
</p> |
|||
|
|||
<pre caption="Compiling and linking linear algebra libraries"> |
|||
# <i>pkg-config --libs blas</i> <comment>(To link with FORTRAN 77 BLAS library)</comment> |
|||
# <i>pkg-config --cflags cblas</i> <comment>(To compile against C BLAS library)</comment> |
|||
# <i>pkg-config --libs cblas</i> <comment>(To link with C BLAS library)</comment> |
|||
# <i>pkg-config --libs scalapack</i> <comment>(To link with the ScaLAPACK library)</comment> |
|||
</pre> |
|||
|
|||
<p> |
|||
<c>pkg-config</c> files are available for all implementations and |
|||
various alternatives within implementations. The default names of |
|||
the implementations are: blas, cblas, lapack, lapacke, blacs and |
|||
scalapack, and they can be chosen with <c>eselect</c>. You can also always compile or link |
|||
with an library not selected for the |
|||
More information on using <c>pkg-config</c> can be obtained with <c>man pkg-config</c>. |
|||
</p> |
|||
|
|||
</body> |
|||
</section> |
|||
<section> |
|||
<title>Selecting libraries</title> |
|||
<body> |
|||
|
|||
<p> |
|||
You can switch BLAS, CBLAS and LAPACK implementations with |
|||
<c>eselect</c>. you can view which implementations of CBLAS |
|||
are available. |
|||
</p> |
|||
|
|||
<pre caption="Viewing available implementations of CBLAS"> |
|||
# <i>eselect cblas list</i> |
|||
Installed CBLAS for library directory lib64 |
|||
[1] atlas |
|||
[2] atlas-threads |
|||
[3] gsl |
|||
[4] mkl-threads * |
|||
[5] reference |
|||
</pre> |
|||
|
|||
<p> |
|||
The implementation marked with an asterisk (*) is the currently |
|||
selected implementation. To switch implementations, run: |
|||
</p> |
|||
|
|||
<pre caption="Switching to the threaded ATLAS implementation of BLAS"> |
|||
# <i>eselect blas set atlas-threads</i> |
|||
</pre> |
|||
|
|||
<p> |
|||
To learn more about the <c>eselect</c> tool, visit the |
|||
<uri link="http://www.gentoo.org/proj/en/eselect/user-guide.xml">eselect guide</uri> |
|||
</p> |
|||
|
|||
<p> |
|||
When selecting your linear algebra profiles try to avoid mixing |
|||
different implementations since we don't have any mechanism to enforce |
|||
reasonable profiles. However, here is a list of well performing |
|||
profile combinations that have been used successfully in the past: |
|||
</p> |
|||
<ul> |
|||
<li> performant on most CPUs: |
|||
<ul> |
|||
<li>blas, cblas: atlas (or atlas-threads with multi-processor)</li> |
|||
<li>lapack, lapacke: atlas</li> |
|||
</ul> |
|||
</li> |
|||
<li> performant on most CPUs: |
|||
<ul> |
|||
<li>blas, cblas: goto2 </li> |
|||
<li>lapack, lapacke: reference</li> |
|||
</ul> |
|||
</li> |
|||
<li> performant on AMD based CPUs: |
|||
<ul> |
|||
<li>cblas: reference</li> |
|||
</ul> |
|||
</li> |
|||
<li> performant on Intel based CPUs: |
|||
<ul> |
|||
<li>blas,cblas,lapack: mkl-threads</li> |
|||
</ul> |
|||
</li> |
|||
</ul> |
|||
|
|||
</body> |
|||
</section> |
|||
|
|||
<section> |
|||
<title>Choosing a compiler</title> |
|||
<body> |
|||
|
|||
<p> |
|||
All the above libraries have been tested with the GNU compiler |
|||
collections (gcc, gfortran). |
|||
There are many available C compilers and a few FORTRAN (ifort, |
|||
Open64) compilers on Gentoo and many other FORTRAN compilers outside |
|||
of Gentoo (). |
|||
</p> |
|||
|
|||
<pre caption="Installing BLAS with the Intel FORTRAN compiler"> |
|||
# <i>F77=ifort FFLAGS="-O2 -mp1" emerge blas-reference</i> |
|||
</pre> |
|||
|
|||
<p> |
|||
Depending on your hardware, a small performance gain can be noticed thanks to |
|||
vectorization. The <c>-mp</c> flag maintains floating-point precision, since by |
|||
default ifort is pretty aggressive on floating point arithmetic, and we are |
|||
actually compiling a math package. Try <c>man ifort</c> to see additional flags |
|||
to fit your hardware. |
|||
</p> |
|||
|
|||
<p> |
|||
Some of the implementations let you specify the Intel® C compiler as |
|||
well. Please beware that not all libraries compile with all |
|||
combinations. You should receive an error during the emerge in case you have |
|||
chosen an incompatible combination. |
|||
</p> |
|||
|
|||
<p> |
|||
As usual for Gentoo, there are many combinations of USE flags and |
|||
compilers with which you could compile a package. Unfortunately |
|||
switching compilers between BLAS and LAPACK might not be always |
|||
compatible. For example: |
|||
</p> |
|||
|
|||
<pre caption="Looking for trouble combinations"> |
|||
# <i>FC=gfortran FFLAGS="-O2" emerge lapack-reference</i> |
|||
</pre> |
|||
|
|||
<p> |
|||
This will most likely break things or not even compile. |
|||
</p> |
|||
|
|||
<p> |
|||
Try to be consistent in your choice. Stay with the GCC most of the time will |
|||
avoid you some trouble, unless you want to use the MKL, in which case the Intel |
|||
compilers make a good combination. |
|||
</p> |
|||
|
|||
</body> |
|||
</section> |
|||
<section> |
|||
<title>Documentation</title> |
|||
<body> |
|||
|
|||
<p> |
|||
If you need BLAS or LAPACK to develop your own programs, the documentation |
|||
becomes pretty handy. Setting the USE="doc" flag for the corresponding BLAS or |
|||
LAPACK package will install man pages and quick reference sheets from the |
|||
<c>app-doc/blas-docs</c> and <c>app-doc/lapack-docs</c> packages. They are |
|||
standard and valid for all implementations. For optimized packages, the |
|||
USE="doc" flags will usually install extra doc in PDF or HTML format. |
|||
</p> |
|||
|
|||
</body> |
|||
</section> |
|||
</chapter> |
|||
|
|||
<chapter> |
|||
<title>For ebuild developers</title> |
|||
<section> |
|||
|
|||
<section> |
|||
<title>Packages with BLAS/LAPACK dependencies</title> |
|||
<body> |
|||
|
|||
<p> |
|||
You need two things: |
|||
set [R]DEPEND to <c>virtual/<imp></c>. To build some |
|||
packages, you m need to use the pkg-config tool. If you are lucky, the |
|||
package uses autotools together with the autoconf <>AX_BLAS and <>AX_LAPACK M4 |
|||
macros. In this case, the configuration step becomes simple. For example: |
|||
</p> |
|||
|
|||
<pre caption="Sample package configuration with autotools"> |
|||
<keyword>econf</keyword> --with-blas="<var>$(pkg-config --libs blas)</var>" |
|||
</pre> |
|||
|
|||
</body> |
|||
</section> |
|||
|
|||
|
|||
|
|||
<title>Providing new implementations</title> |
|||
<body> |
|||
|
|||
<p> |
|||
The Portage tree contains many ebuilds that depend on the |
|||
BLAS/CBLAS/LAPACK/BLACS/ScaLAPACK libraries. As there is more than |
|||
one possible implementation, the Gentoo Science Project |
|||
reorganized all the packages to provide <c>virtual</c>. All ebuilds using |
|||
should depend on this virtual package, unless it is explicitly |
|||
known to break with a specific implementation. |
|||
</p> |
|||
|
|||
<p> |
|||
To work with Gentoo's configuration tools |
|||
<c>app-admin/eselect-{blas,cblas,lapack}</c>, and the virtual, every ebuild that |
|||
installs a BLAS implementation must fulfill following requirements: |
|||
</p> |
|||
|
|||
<ol> |
|||
<li> |
|||
The ebuild must install an eselect file for each profile it provides. The |
|||
libraries should link to the ones in <path>/usr/$(get_libdir)</path> |
|||
directories and the include files in <path>/usr/include</path>: |
|||
<ul> |
|||
<li> |
|||
<path>libblas.so[.0]</path> - Shared object for FORTRAN BLAS |
|||
applications |
|||
</li> |
|||
<li> |
|||
<path>libblas.a</path> - Static library for FORTRAN BLAS applications |
|||
</li> |
|||
<li> |
|||
<path>libcblas.so[.0]</path> - Shared object for C/C++ CBLAS applications |
|||
</li> |
|||
<li> |
|||
<path>libcblas.a</path> - Static library for C/C++ CBLAS applications |
|||
</li> |
|||
<li><path>cblas.h</path> - Include header for C/C++ applications</li> |
|||
<li> |
|||
<path>liblapack.so[.0]</path> - Shared object for FORTRAN LAPACK |
|||
applications |
|||
</li> |
|||
<li> |
|||
<path>liblapack.a</path> - Static library for FORTRAN LAPACK applications |
|||
</li> |
|||
</ul> |
|||
</li> |
|||
<li> |
|||
The ebuild must install a <path>blas.pc</path>, <path>cblas.pc</path> and/or |
|||
<path>lapack.pc</path> pkg-config file and therefore RDEPEND on |
|||
<c>dev-util/pkgconfig</c>. They should also be included in the eselect |
|||
files, and link to the <path>/usr/$(get_libdir)/pkgconfig</path> directory: |
|||
<ul> |
|||
<li><path>blas.pc</path> - BLAS pkg-config file</li> |
|||
<li><path>cblas.pc</path> - CBLAS pkg-config file</li> |
|||
<li><path>lapack.pc</path> - LAPACK pkg-config file</li> |
|||
</ul> |
|||
</li> |
|||
<li>Be included in the virtual package as a possible provider: |
|||
<ul> |
|||
<li><c>virtual/blas</c> - BLAS virtual package</li> |
|||
<li><c>virtual/cblas</c> - CBLAS virtual package</li> |
|||
<li><c>virtual/lapack</c> - LAPACK virtual package</li> |
|||
</ul> |
|||
</li> |
|||
</ol> |
|||
|
|||
<p> |
|||
The easiest way of understanding all this is probably getting inspiration from |
|||
one of the available packages. Currently the Portage tree provide the following |
|||
virtual packages: |
|||
</p> |
|||
|
|||
<table> |
|||
<tr> |
|||
<th>Package name</th> |
|||
<th>virtual/blas</th> |
|||
<th>virtual/cblas</th> |
|||
<th>virtual/lapack</th> |
|||
<th>virtual/lapacke</th> |
|||
<th>virtual/blacs</th> |
|||
<th>virtual/scalapack</th> |
|||
</tr> |
|||
<tr> |
|||
<ti><c>sci-libs/atlas</c></ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
</tr> |
|||
<tr> |
|||
<ti><c>sci-libs/gotoblas2</c></ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
</tr> |
|||
<tr> |
|||
<ti><c>sci-libs/blas-reference</c></ti> |
|||
<ti>*</ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
</tr> |
|||
<tr> |
|||
<ti><c>sci-libs/cblas-reference</c></ti> |
|||
<ti></ti> |
|||
<ti>*</ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
</tr> |
|||
<tr> |
|||
<ti><c>sci-libs/gsl</c></ti> |
|||
<ti></ti> |
|||
<ti>*</ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
</tr> |
|||
<tr> |
|||
<ti><c>sci-libs/lapack-reference</c></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti>*</ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
<ti></ti> |
|||
</tr> |
|||
<tr> |
|||
<ti><c>sci-libs/mkl</c></ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
<ti>*</ti> |
|||
</tr> |
|||
</table> |
|||
|
|||
</body> |
|||
</section> |
|||
|
|||
</chapter> |
|||
|
|||
<chapter> |
|||
<title>Benchmarks</title> |
|||
<section> |
|||
<body> |
|||
|
|||
<p> |
|||
If you feel inclined to write an ebuild for these, you |
|||
are more than welcomed to file it on our <uri |
|||
link="http://bugs.gentoo.org">Bugzilla</uri>. |
|||
</p> |
|||
|
|||
</body> |
|||
</section> |
|||
</chapter> |
|||
|
|||
</guide> |
|||
@ -1,2 +0,0 @@ |
|||
DIST lapack-3.7.0.tgz 7359812 BLAKE2B 20aa42e22d8c920d1360afe41ceec7b36f6cd5fbe43ca9d7848ef7cc45a64a0314cb1321941c1a7c03654f41e28ec805445882ded0ca0ea07674e70b66cba6b5 SHA512 e4f4c7d0ba8a096eeb813160c6dbcdd535647df6b2ad5beac9181908158956b31d1a9554ec9b9836fd44fe7404c1f377b297cbb20d744f20d70e357fd246c91b |
|||
DIST lapack-3.8.0.tar.gz 7426094 BLAKE2B 27cd75eea498250382b2df6f5d7dc95fdee8d37b1a0faba5296ca0145ec40a1165a4ecc727aa1647086be6783b50cf475f79cea0f30f541da789051db99b2f37 SHA512 17786cb7306fccdc9b4a242de7f64fc261ebe6a10b6ec55f519deb4cb673cb137e8742aa5698fd2dc52f1cd56d3bd116af3f593a01dcf6770c4dcc86c50b2a7f |
|||
@ -1,110 +0,0 @@ |
|||
# Copyright 1999-2017 Gentoo Foundation |
|||
# Distributed under the terms of the GNU General Public License v2 |
|||
|
|||
EAPI=6 |
|||
|
|||
PYTHON_COMPAT=( python2_7 ) |
|||
|
|||
NUMERIC_MODULE_NAME="refblas" |
|||
|
|||
inherit alternatives-2 cmake-utils eutils fortran-2 numeric-int64-multibuild python-any-r1 toolchain-funcs |
|||
|
|||
LPN=lapack |
|||
LPV=3.7.0 |
|||
|
|||
DESCRIPTION="Reference implementation of BLAS" |
|||
HOMEPAGE="http://www.netlib.org/lapack/" |
|||
SRC_URI="http://www.netlib.org/${LPN}/${LPN}-${LPV}.tgz" |
|||
|
|||
LICENSE="BSD" |
|||
SLOT="0/${LPV}" |
|||
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux" |
|||
IUSE="static-libs test" |
|||
|
|||
REQUIRED_USE="test? ( ${PYTHON_REQUIRED_USE} )" |
|||
|
|||
RDEPEND="" |
|||
DEPEND="${RDEPEND} |
|||
test? ( ${PYTHON_DEPS} ) |
|||
virtual/pkgconfig" |
|||
|
|||
S="${WORKDIR}/${LPN}-${LPV}" |
|||
PATCHES=( "${FILESDIR}/lapack-reference-${LPV}-fix-build-system.patch" ) |
|||
|
|||
src_prepare() { |
|||
default |
|||
|
|||
# rename library to avoid collision with other blas implementations |
|||
# ${LIBNAME} and ${PROFNAME} are not defined here, they are in single |
|||
# quotes in the following seds. They are later set by defining cmake |
|||
# variables with -DPROFNAME etc in src_configure |
|||
sed -i \ |
|||
-e 's:\([^xc]\)blas:\1${LIBNAME}:g' \ |
|||
-e '/PROPERTIES/s:blas:${LIBNAME}:g' \ |
|||
CMakeLists.txt \ |
|||
BLAS/SRC/CMakeLists.txt || die |
|||
sed -i \ |
|||
-e '/Name: /s:blas:@PROFNAME@:' \ |
|||
-e 's:-lblas:-l@LIBNAME@:g' \ |
|||
BLAS/blas.pc.in || die |
|||
sed -i \ |
|||
-e 's:blas):${LIBNAME}):' \ |
|||
BLAS/TESTING/CMakeLists.txt || die |
|||
sed -i \ |
|||
-e 's:BINARY_DIR}/blas:BINARY_DIR}/${PROFNAME}:' \ |
|||
BLAS/CMakeLists.txt || die |
|||
} |
|||
|
|||
src_configure() { |
|||
blas_configure() { |
|||
local FCFLAGS="${FCFLAGS}" |
|||
append-fflags $($(tc-getPKG_CONFIG) --cflags ${blas_profname}) |
|||
append-fflags $(get_abi_CFLAGS) |
|||
append-fflags $(numeric-int64_get_fortran_int64_abi_fflags) |
|||
|
|||
local profname=$(numeric-int64_get_module_name) |
|||
local libname="${profname//-/_}" |
|||
|
|||
local mycmakeargs=( |
|||
-Wno-dev |
|||
-DPROFNAME="${profname}" |
|||
-DLIBNAME="${libname}" |
|||
-DUSE_OPTIMIZED_BLAS=OFF |
|||
-DCMAKE_Fortran_FLAGS="${FCFLAGS}" |
|||
-DLAPACK_PKGCONFIG_FFLAGS="$(numeric-int64_get_fortran_int64_abi_fflags)" |
|||
-DBUILD_TESTING="$(usex test)" |
|||
) |
|||
if $(numeric-int64_is_static_build); then |
|||
mycmakeargs+=( |
|||
-DBUILD_SHARED_LIBS=OFF |
|||
-DBUILD_STATIC_LIBS=ON |
|||
) |
|||
else |
|||
mycmakeargs+=( |
|||
-DBUILD_SHARED_LIBS=ON |
|||
-DBUILD_STATIC_LIBS=OFF |
|||
) |
|||
fi |
|||
cmake-utils_src_configure |
|||
} |
|||
numeric-int64-multibuild_foreach_all_abi_variants blas_configure |
|||
} |
|||
|
|||
src_compile() { |
|||
local each target_dirs=( BLAS ) |
|||
use test && target_dirs+=( TESTING ) |
|||
for each in ${target_dirs[@]}; do |
|||
numeric-int64-multibuild_foreach_all_abi_variants \ |
|||
cmake-utils_src_compile -C ${each} |
|||
done |
|||
|
|||
} |
|||
|
|||
src_test() { |
|||
numeric-int64-multibuild_foreach_all_abi_variants cmake-utils_src_test |
|||
} |
|||
|
|||
src_install() { |
|||
numeric-int64-multibuild_foreach_all_abi_variants cmake-utils_src_install -C BLAS |
|||
numeric-int64-multibuild_install_alternative blas reference |
|||
} |
|||
@ -1,109 +0,0 @@ |
|||
# Copyright 1999-2018 Gentoo Foundation |
|||
# Distributed under the terms of the GNU General Public License v2 |
|||
|
|||
EAPI=6 |
|||
|
|||
PYTHON_COMPAT=( python2_7 ) |
|||
|
|||
NUMERIC_MODULE_NAME="refblas" |
|||
|
|||
inherit alternatives-2 cmake-utils eutils fortran-2 numeric-int64-multibuild python-any-r1 toolchain-funcs |
|||
|
|||
LPN=lapack |
|||
LPV=3.8.0 |
|||
|
|||
DESCRIPTION="Reference implementation of BLAS" |
|||
HOMEPAGE="http://www.netlib.org/lapack/" |
|||
SRC_URI="http://www.netlib.org/${LPN}/${LPN}-${LPV}.tar.gz" |
|||
|
|||
LICENSE="BSD" |
|||
SLOT="0/${LPV}" |
|||
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux" |
|||
IUSE="static-libs test" |
|||
|
|||
REQUIRED_USE="test? ( ${PYTHON_REQUIRED_USE} )" |
|||
|
|||
RDEPEND="" |
|||
DEPEND="${RDEPEND} |
|||
test? ( ${PYTHON_DEPS} ) |
|||
virtual/pkgconfig" |
|||
|
|||
S="${WORKDIR}/${LPN}-${LPV}" |
|||
|
|||
src_prepare() { |
|||
cmake-utils_src_prepare |
|||
|
|||
# rename library to avoid collision with other blas implementations |
|||
# ${LIBNAME} and ${PROFNAME} are not defined here, they are in single |
|||
# quotes in the following seds. They are later set by defining cmake |
|||
# variables with -DPROFNAME etc in src_configure |
|||
sed -i \ |
|||
-e 's:\([^xc]\)blas:\1${LIBNAME}:g' \ |
|||
-e '/PROPERTIES/s:blas:${LIBNAME}:g' \ |
|||
CMakeLists.txt \ |
|||
BLAS/SRC/CMakeLists.txt || die |
|||
sed -i \ |
|||
-e '/Name: /s:blas:@PROFNAME@:' \ |
|||
-e 's:-lblas:-l@LIBNAME@:g' \ |
|||
BLAS/blas.pc.in || die |
|||
sed -i \ |
|||
-e 's:blas):${LIBNAME}):' \ |
|||
BLAS/TESTING/CMakeLists.txt || die |
|||
sed -i \ |
|||
-e 's:BINARY_DIR}/blas:BINARY_DIR}/${PROFNAME}:' \ |
|||
BLAS/CMakeLists.txt || die |
|||
} |
|||
|
|||
src_configure() { |
|||
blas_configure() { |
|||
local FCFLAGS="${FCFLAGS}" |
|||
append-fflags $($(tc-getPKG_CONFIG) --cflags ${blas_profname}) |
|||
append-fflags $(get_abi_CFLAGS) |
|||
append-fflags $(numeric-int64_get_fortran_int64_abi_fflags) |
|||
|
|||
local profname=$(numeric-int64_get_module_name) |
|||
local libname="${profname//-/_}" |
|||
|
|||
local mycmakeargs=( |
|||
-Wno-dev |
|||
-DPROFNAME="${profname}" |
|||
-DLIBNAME="${libname}" |
|||
-DUSE_OPTIMIZED_BLAS=OFF |
|||
-DCMAKE_Fortran_FLAGS="${FCFLAGS}" |
|||
-DLAPACK_PKGCONFIG_FFLAGS="$(numeric-int64_get_fortran_int64_abi_fflags)" |
|||
-DBUILD_TESTING="$(usex test)" |
|||
) |
|||
if $(numeric-int64_is_static_build); then |
|||
mycmakeargs+=( |
|||
-DBUILD_SHARED_LIBS=OFF |
|||
-DBUILD_STATIC_LIBS=ON |
|||
) |
|||
else |
|||
mycmakeargs+=( |
|||
-DBUILD_SHARED_LIBS=ON |
|||
-DBUILD_STATIC_LIBS=OFF |
|||
) |
|||
fi |
|||
cmake-utils_src_configure |
|||
} |
|||
numeric-int64-multibuild_foreach_all_abi_variants blas_configure |
|||
} |
|||
|
|||
src_compile() { |
|||
local each target_dirs=( BLAS ) |
|||
use test && target_dirs+=( TESTING ) |
|||
for each in ${target_dirs[@]}; do |
|||
numeric-int64-multibuild_foreach_all_abi_variants \ |
|||
cmake-utils_src_compile -C ${each} |
|||
done |
|||
|
|||
} |
|||
|
|||
src_test() { |
|||
numeric-int64-multibuild_foreach_all_abi_variants cmake-utils_src_test |
|||
} |
|||
|
|||
src_install() { |
|||
numeric-int64-multibuild_foreach_all_abi_variants cmake-utils_src_install -C BLAS |
|||
numeric-int64-multibuild_install_alternative blas reference |
|||
} |
|||
@ -1,108 +0,0 @@ |
|||
# Copyright 1999-2018 Gentoo Foundation |
|||
# Distributed under the terms of the GNU General Public License v2 |
|||
|
|||
EAPI=6 |
|||
|
|||
PYTHON_COMPAT=( python2_7 ) |
|||
|
|||
NUMERIC_MODULE_NAME="refblas" |
|||
|
|||
inherit alternatives-2 cmake-utils fortran-2 numeric-int64-multibuild python-any-r1 toolchain-funcs subversion |
|||
|
|||
LPN=lapack |
|||
LPV=3.8.0 |
|||
|
|||
DESCRIPTION="Reference implementation of BLAS" |
|||
HOMEPAGE="http://www.netlib.org/lapack/" |
|||
ESVN_REPO_URI="https://icl.cs.utk.edu/svn/lapack-dev/${LPN}/trunk" |
|||
|
|||
LICENSE="BSD" |
|||
SLOT="0/${LPV}" |
|||
KEYWORDS="" |
|||
IUSE="static-libs test" |
|||
|
|||
REQUIRED_USE="test? ( ${PYTHON_REQUIRED_USE} )" |
|||
|
|||
RDEPEND="" |
|||
DEPEND="${RDEPEND} |
|||
test? ( ${PYTHON_DEPS} ) |
|||
virtual/pkgconfig" |
|||
|
|||
S="${WORKDIR}/${LPN}-${LPV}" |
|||
|
|||
src_prepare() { |
|||
cmake-utils_src_prepare |
|||
# rename library to avoid collision with other blas implementations |
|||
# ${LIBNAME} and ${PROFNAME} are not defined here, they are in single |
|||
# quotes in the following seds. They are later set by defining cmake |
|||
# variables with -DPROFNAME etc in src_configure |
|||
sed -i \ |
|||
-e 's:\([^xc]\)blas:\1${LIBNAME}:g' \ |
|||
-e '/PROPERTIES/s:blas:${LIBNAME}:g' \ |
|||
CMakeLists.txt \ |
|||
BLAS/SRC/CMakeLists.txt || die |
|||
sed -i \ |
|||
-e '/Name: /s:blas:${PROFNAME}:' \ |
|||
-e 's:-lblas:-l${LIBNAME}:g' \ |
|||
BLAS/blas.pc.in || die |
|||
sed -i \ |
|||
-e 's:blas):${LIBNAME}):' \ |
|||
BLAS/TESTING/CMakeLists.txt || die |
|||
sed -i \ |
|||
-e 's:BINARY_DIR}/blas:BINARY_DIR}/${PROFNAME}:' \ |
|||
BLAS/CMakeLists.txt || die |
|||
} |
|||
|
|||
src_configure() { |
|||
blas_configure() { |
|||
local FCFLAGS="${FCFLAGS}" |
|||
append-fflags $($(tc-getPKG_CONFIG) --cflags ${blas_profname}) |
|||
append-fflags $(get_abi_CFLAGS) |
|||
append-fflags $(numeric-int64_get_fortran_int64_abi_fflags) |
|||
|
|||
local profname=$(numeric-int64_get_module_name) |
|||
local libname="${profname//-/_}" |
|||
|
|||
local mycmakeargs=( |
|||
-Wno-dev |
|||
-DPROFNAME="${profname}" |
|||
-DLIBNAME="${libname}" |
|||
-DUSE_OPTIMIZED_BLAS=OFF |
|||
-DCMAKE_Fortran_FLAGS="${FCFLAGS}" |
|||
-DLAPACK_PKGCONFIG_FFLAGS="$(numeric-int64_get_fortran_int64_abi_fflags)" |
|||
$(cmake-utils_use_build test TESTING) |
|||
) |
|||
if $(numeric-int64_is_static_build); then |
|||
mycmakeargs+=( |
|||
-DBUILD_SHARED_LIBS=OFF |
|||
-DBUILD_STATIC_LIBS=ON |
|||
) |
|||
else |
|||
mycmakeargs+=( |
|||
-DBUILD_SHARED_LIBS=ON |
|||
-DBUILD_STATIC_LIBS=OFF |
|||
) |
|||
fi |
|||
cmake-utils_src_configure |
|||
} |
|||
numeric-int64-multibuild_foreach_all_abi_variants blas_configure |
|||
} |
|||
|
|||
src_compile() { |
|||
local each target_dirs=( BLAS ) |
|||
use test && target_dirs+=( TESTING ) |
|||
for each in ${target_dirs[@]}; do |
|||
numeric-int64-multibuild_foreach_all_abi_variants \ |
|||
cmake-utils_src_compile -C ${each} |
|||
done |
|||
|
|||
} |
|||
|
|||
src_test() { |
|||
numeric-int64-multibuild_foreach_all_abi_variants cmake-utils_src_test |
|||
} |
|||
|
|||
src_install() { |
|||
numeric-int64-multibuild_foreach_all_abi_variants cmake-utils_src_install -C BLAS |
|||
numeric-int64-multibuild_install_alternative blas reference |
|||
} |
|||
@ -1,92 +0,0 @@ |
|||
--- lapack-3.6.0/BLAS/blas.pc.in
|
|||
+++ lapack-3.6.0/BLAS/blas.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: blas |
|||
Description: Basic Linear Algebra Subprograms F77 reference implementations |
|||
--- lapack-3.6.0/BLAS/CMakeLists.txt
|
|||
+++ lapack-3.6.0/BLAS/CMakeLists.txt
|
|||
@@ -2,7 +2,7 @@
|
|||
if(BUILD_TESTING) |
|||
add_subdirectory(TESTING) |
|||
endif(BUILD_TESTING) |
|||
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/blas.pc.in ${CMAKE_CURRENT_BINARY_DIR}/blas.pc)
|
|||
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/blas.pc.in ${CMAKE_CURRENT_BINARY_DIR}/blas.pc @ONLY)
|
|||
install(FILES |
|||
${CMAKE_CURRENT_BINARY_DIR}/blas.pc |
|||
DESTINATION ${PKG_CONFIG_DIR} |
|||
--- lapack-3.6.0/CBLAS/cblas.pc.in
|
|||
+++ lapack-3.6.0/CBLAS/cblas.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: lapacke |
|||
Description: C Standard Interface to BLAS Linear Algebra PACKage |
|||
--- lapack-3.6.0/CBLAS/CMakeLists.txt
|
|||
+++ lapack-3.6.0/CBLAS/CMakeLists.txt
|
|||
@@ -71,7 +71,7 @@
|
|||
${LAPACK_BINARY_DIR}/cblas-config.cmake @ONLY) |
|||
|
|||
|
|||
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cblas.pc.in ${CMAKE_CURRENT_BINARY_DIR}/cblas.pc)
|
|||
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cblas.pc.in ${CMAKE_CURRENT_BINARY_DIR}/cblas.pc @ONLY)
|
|||
install(FILES |
|||
${CMAKE_CURRENT_BINARY_DIR}/cblas.pc |
|||
DESTINATION ${PKG_CONFIG_DIR} |
|||
--- lapack-3.6.0/CMakeLists.txt
|
|||
+++ lapack-3.6.0/CMakeLists.txt
|
|||
@@ -333,7 +333,7 @@
|
|||
${LAPACK_BINARY_DIR}/lapack-config.cmake @ONLY) |
|||
|
|||
|
|||
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lapack.pc.in ${CMAKE_CURRENT_BINARY_DIR}/lapack.pc)
|
|||
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lapack.pc.in ${CMAKE_CURRENT_BINARY_DIR}/lapack.pc @ONLY)
|
|||
install(FILES |
|||
${CMAKE_CURRENT_BINARY_DIR}/lapack.pc |
|||
DESTINATION ${PKG_CONFIG_DIR} |
|||
--- lapack-3.6.0/LAPACKE/CMakeLists.txt
|
|||
+++ lapack-3.6.0/LAPACKE/CMakeLists.txt
|
|||
@@ -65,7 +65,7 @@
|
|||
endif(BUILD_TESTING) |
|||
|
|||
|
|||
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lapacke.pc.in ${CMAKE_CURRENT_BINARY_DIR}/lapacke.pc)
|
|||
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lapacke.pc.in ${CMAKE_CURRENT_BINARY_DIR}/lapacke.pc @ONLY)
|
|||
install(FILES |
|||
${CMAKE_CURRENT_BINARY_DIR}/lapacke.pc |
|||
DESTINATION ${PKG_CONFIG_DIR} |
|||
--- lapack-3.6.0/LAPACKE/lapacke.pc.in
|
|||
+++ lapack-3.6.0/LAPACKE/lapacke.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: lapacke |
|||
Description: C Standard Interface to LAPACK Linear Algebra PACKage |
|||
--- lapack-3.6.0/lapack.pc.in
|
|||
+++ lapack-3.6.0/lapack.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: lapack |
|||
Description: FORTRAN reference implementation of LAPACK Linear Algebra PACKage |
|||
@ -1,56 +0,0 @@ |
|||
diff --git a/BLAS/blas.pc.in b/BLAS/blas.pc.in
|
|||
index 7fd6f1e..e52f3ad 100644
|
|||
--- a/BLAS/blas.pc.in
|
|||
+++ b/BLAS/blas.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: BLAS |
|||
Description: FORTRAN reference implementation of BLAS Basic Linear Algebra Subprograms |
|||
diff --git a/CBLAS/cblas.pc.in b/CBLAS/cblas.pc.in
|
|||
index 4a938fe..311aed9 100644
|
|||
--- a/CBLAS/cblas.pc.in
|
|||
+++ b/CBLAS/cblas.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: CBLAS |
|||
Description: C Standard Interface to BLAS Basic Linear Algebra Subprograms |
|||
diff --git a/LAPACKE/lapacke.pc.in b/LAPACKE/lapacke.pc.in
|
|||
index 028f8da..dc092b1 100644
|
|||
--- a/LAPACKE/lapacke.pc.in
|
|||
+++ b/LAPACKE/lapacke.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: LAPACKE |
|||
Description: C Standard Interface to LAPACK Linear Algebra PACKage |
|||
diff --git a/lapack.pc.in b/lapack.pc.in
|
|||
index 878efc2..2cca4c2 100644
|
|||
--- a/lapack.pc.in
|
|||
+++ b/lapack.pc.in
|
|||
@@ -1,5 +1,7 @@
|
|||
-prefix=@prefix@
|
|||
-libdir=@libdir@
|
|||
+prefix=@CMAKE_INSTALL_PREFIX@
|
|||
+exec_prefix=${prefix}
|
|||
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
|
|||
+includedir=${prefix}/include
|
|||
|
|||
Name: LAPACK |
|||
Description: FORTRAN reference implementation of LAPACK Linear Algebra PACKage |
|||
@ -1,20 +0,0 @@ |
|||
<?xml version="1.0" encoding="UTF-8"?> |
|||
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> |
|||
<pkgmetadata> |
|||
<maintainer type="project"> |
|||
<email>sci@gentoo.org</email> |
|||
<name>Gentoo Science Project</name> |
|||
</maintainer> |
|||
<longdescription lang="en"> |
|||
The BLAS (Basic Linear Algebra Subprograms) are high quality "building |
|||
block" routines for performing basic vector and matrix operations. Level 1 |
|||
BLAS do vector-vector operations, Level 2 BLAS do matrix-vector operations, |
|||
and Level 3 BLAS do matrix-matrix operations. Because the BLAS are |
|||
efficient, portable, and widely available, they're commonly used in the |
|||
development of high quality linear algebra software, LAPACK for |
|||
example. This packages implements the reference FORTRAN 77 library. |
|||
</longdescription> |
|||
<use> |
|||
<flag name="int64">Build the 64 bits integer library</flag> |
|||
</use> |
|||
</pkgmetadata> |
|||
@ -1,3 +0,0 @@ |
|||
DIST cblas-reference-20110218.tgz 197468 BLAKE2B 8c9aefae422e7beac3ef433f121a152a7669345d0438b76d9bf8278f2a9b22ca29e01f5dbcb816b3f2759979a07d4883834037ba46a3b1d90f734989a5b57f4e SHA512 1c64e6814529cd716890504d213e8cd90150348b9105e8da030718383241a5660d145a14f26e20d27b2aea72c87a9d46b754c6e48935e168d62842c04ba56401 |
|||
DIST lapack-3.6.0.tgz 6792324 BLAKE2B 438f3376b63b38ef0fe70f6becac847816f3a11c01f5ab237dc0d941792ceb54dbd2f8dc22d56286f5dab3499289ed94e67521ea951a98973c9640abc294ad6c SHA512 bc50441d415ef8896dd7626d77c6104184b996e758704366288089f03d4c99d068e33153b0d13305310886017e5d2e716130f812a95cfcad36ef37fe20417ab8 |
|||
DIST lapack-3.7.0.tgz 7359812 BLAKE2B 20aa42e22d8c920d1360afe41ceec7b36f6cd5fbe43ca9d7848ef7cc45a64a0314cb1321941c1a7c03654f41e28ec805445882ded0ca0ea07674e70b66cba6b5 SHA512 e4f4c7d0ba8a096eeb813160c6dbcdd535647df6b2ad5beac9181908158956b31d1a9554ec9b9836fd44fe7404c1f377b297cbb20d744f20d70e357fd246c91b |
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@ -1,144 +0,0 @@ |
|||
# Copyright 1999-2016 Gentoo Foundation |
|||
# Distributed under the terms of the GNU General Public License v2 |
|||
|
|||
EAPI=5 |
|||
|
|||
NUMERIC_MODULE_NAME="refcblas" |
|||
|
|||
inherit alternatives-2 flag-o-matic fortran-2 multilib numeric numeric-int64-multibuild toolchain-funcs versionator |
|||
|
|||
MYPN="${PN/-reference/}" |
|||
|
|||
DESCRIPTION="C wrapper interface to the F77 reference BLAS implementation" |
|||
HOMEPAGE="http://www.netlib.org/blas/" |
|||
SRC_URI="http://www.netlib.org/blas/blast-forum/${MYPN}.tgz -> ${P}.tgz" |
|||
|
|||
SLOT="0" |
|||
LICENSE="public-domain" |
|||
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux" |
|||
IUSE="static-libs" |
|||
|
|||
RDEPEND="virtual/blas" |
|||
DEPEND="${RDEPEND} |
|||
virtual/pkgconfig" |
|||
|
|||
S="${WORKDIR}/CBLAS" |
|||
|
|||
MULTILIB_WRAPPED_HEADERS=( |
|||
/usr/include/cblas/cblas.h |
|||
) |
|||
|
|||
static_to_shared() { |
|||
local libstatic=$1 |
|||
shift || die |
|||
local libname=$(basename ${libstatic%.a}) |
|||
local soname=${libname}$(get_libname $(get_version_component_range 1-2)) |
|||
local libdir=$(dirname ${libstatic}) |
|||
|
|||
einfo "Making ${soname} from ${libstatic}" |
|||
if [[ ${CHOST} == *-darwin* ]] ; then |
|||
${LINK:-$(tc-getCC)} ${LDFLAGS} \ |
|||
-dynamiclib -install_name "${EPREFIX}"/usr/$(get_libdir)/${soname} \ |
|||
-Wl,-all_load -Wl,${libstatic} \ |
|||
"$@" -o ${libdir}/${soname} || die "${soname} failed" |
|||
else |
|||
${LINK:-$(tc-getCC)} ${LDFLAGS} \ |
|||
-shared -Wl,-soname=${soname} \ |
|||
-Wl,--whole-archive ${libstatic} -Wl,--no-whole-archive \ |
|||
"$@" -o ${libdir}/${soname} || die "${soname} failed" |
|||
if [[ $(get_version_component_count) -gt 1 ]]; then |
|||
ln -s ${soname} ${libdir}/${libname}$(get_libname $(get_major_version)) || die |
|||
fi |
|||
fi |
|||
ln -s ${soname} ${libdir}/${libname}$(get_libname) || die |
|||
} |
|||
|
|||
src_prepare() { |
|||
numeric-int64_ensure_blas_int_support |
|||
find . -name Makefile -exec sed -i \ |
|||
-e 's:make:$(MAKE):g' '{}' \; || die |
|||
numeric-int64-multibuild_copy_sources |
|||
} |
|||
|
|||
src_configure() { |
|||
cblas_configure() { |
|||
local profname=$(numeric-int64_get_module_name) |
|||
local libname="${profname//-/_}" |
|||
append-cflags -DADD_ |
|||
cat > Makefile.in <<-EOF |
|||
BLLIB=$($(tc-getPKG_CONFIG) --libs $(numeric-int64_get_blas_alternative)) |
|||
FC=$(tc-getFC) $(get_abi_CFLAGS) $(numeric-int64_get_fortran_int64_abi_fflags) |
|||
CC=$(tc-getCC) |
|||
CBLIB=../lib/lib${libname}.a |
|||
LOADER=\$(FC) |
|||
ARCH=$(tc-getAR) |
|||
ARCHFLAGS=cr |
|||
RANLIB=$(tc-getRANLIB) |
|||
EOF |
|||
} |
|||
numeric-int64-multibuild_foreach_all_abi_variants run_in_build_dir cblas_configure |
|||
} |
|||
|
|||
src_compile() { |
|||
cblas_src_compile() { |
|||
local profname=$(numeric-int64_get_module_name) |
|||
local libname="${profname//-/_}" |
|||
emake \ |
|||
FFLAGS="${FFLAGS} -fPIC" \ |
|||
CFLAGS="${CFLAGS} -fPIC" \ |
|||
alllib |
|||
static_to_shared lib/lib${libname}.a $($(tc-getPKG_CONFIG) --libs $(numeric-int64_get_blas_alternative)) |
|||
if use static-libs; then |
|||
emake clean |
|||
emake alllib |
|||
fi |
|||
} |
|||
numeric-int64-multibuild_foreach_all_abi_variants run_in_build_dir cblas_src_compile |
|||
} |
|||
|
|||
src_test() { |
|||
cblas_src_test () { |
|||
local profname=$(numeric-int64_get_module_name) |
|||
local libname="${profname//-/_}" |
|||
cd testing || die |
|||
emake && emake run |
|||
} |
|||
numeric-int64-multibuild_foreach_all_abi_variants run_in_build_dir cblas_src_test |
|||
} |
|||
|
|||
src_install() { |
|||
cblas_src_install() { |
|||
local profname=$(numeric-int64_get_module_name) |
|||
local libname="${profname//-/_}" |
|||
# On linux dynamic libraries are of the form .so.${someversion} |
|||
# On OS X dynamic libraries are of the form ${someversion}.dylib |
|||
if numeric-int64_is_static_build; then |
|||
dolib.a lib/lib${libname}.a |
|||
else |
|||
dolib.so lib/lib${libname}*$(get_libname)* |
|||
insinto /usr/include/cblas |
|||
doins include/cblas.h |
|||
create_pkgconfig \ |
|||
--name "${profname}" \ |
|||
--libs "-L\${libdir} -l${libname}" \ |
|||
--libs-private "-lm" \ |
|||
--cflags "-I\${includedir}/cblas $(numeric-int64_get_fortran_int64_abi_fflags)" \ |
|||
--requires $(numeric-int64_get_blas_alternative) \ |
|||
${profname} |
|||
fi |
|||
|
|||
if [[ ${#MULTIBUILD_VARIANTS[@]} -gt 1 ]]; then |
|||
multilib_prepare_wrappers |
|||
multilib_check_headers |
|||
fi |
|||
} |
|||
numeric-int64-multibuild_foreach_all_abi_variants run_in_build_dir cblas_src_install |
|||
|
|||
numeric-int64-multibuild_install_alternative cblas reference /usr/include/cblas.h cblas/cblas.h |
|||
|
|||
multilib_install_wrappers |
|||
|
|||
dodoc README |
|||
docinto examples |
|||
dodoc examples/*.c |
|||
} |
|||
@ -1,126 +0,0 @@ |
|||