ATLAS: Difference between revisions
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!Download Source: | !Download Source: | ||
| http://www.netlib.org/atlas/atlas3.6.0.tgz | | http://www.netlib.org/atlas/atlas3.6.0.tgz | ||
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!Download Source: | |||
| http://www.netlib.org/blas/blas.tgz (F77 source files only, see below) | |||
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= BLAS = | = BLAS = | ||
BLAS are '''B'''asic '''L'''inear '''A'''lgebra '''S'''ubprograms written in Fortran77. There are Level 1 (scalar and vector operations), Level 2 (scalar-matrix operations) and Level 3 (matrix-matrix operations) subprograms. They are available at [http://www.netlib.org/blas/ | BLAS are '''B'''asic '''L'''inear '''A'''lgebra '''S'''ubprograms written in Fortran77. There are Level 1 (scalar and vector operations), Level 2 (scalar-matrix operations) and Level 3 (matrix-matrix operations) subprograms. They are available at [http://www.netlib.org/blas/ as tarballs] of F77 source files and are un-optimized for any particular architecture. Use the second download source if you want or need these source files. [[LAPACK]] can also provide un-optimized BLAS libraries if desired. | ||
ATLAS (Automatically Tuned Linear Algebra Software) will provide C and F77 interfaces to a BLAS implementation optimized for a specific machine architecture. | ATLAS (Automatically Tuned Linear Algebra Software) will provide C and F77 interfaces to a BLAS implementation optimized for a specific machine architecture. | ||
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=== Optional === | === Optional === | ||
* [[gcc-3.X.X]] Benchmarking by the ATLAS maintainers indicates that, with the exception of Core Duo and Pentium M, compiling ATLAS with gcc-3.X produces better x87 code than | * [[gcc-3.X.X]] Benchmarking by the ATLAS maintainers indicates that, with the exception of Core Duo and Pentium M, compiling ATLAS with gcc-3.X produces better x87 code than [http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27827 gcc-4.X]. | ||
== Non-Multilib or Multilib == | == Non-Multilib or Multilib == | ||
Revision as of 12:05, 20 November 2006
| Download Source: | http://www.netlib.org/atlas/atlas3.6.0.tgz |
|---|---|
| Download Source: | http://www.netlib.org/blas/blas.tgz (F77 source files only, see below) |
BLAS
BLAS are Basic Linear Algebra Subprograms written in Fortran77. There are Level 1 (scalar and vector operations), Level 2 (scalar-matrix operations) and Level 3 (matrix-matrix operations) subprograms. They are available at as tarballs of F77 source files and are un-optimized for any particular architecture. Use the second download source if you want or need these source files. LAPACK can also provide un-optimized BLAS libraries if desired.
ATLAS (Automatically Tuned Linear Algebra Software) will provide C and F77 interfaces to a BLAS implementation optimized for a specific machine architecture.
The ideal source of BLAS and LAPACK libraries are those provided by the microprocesor vendor such as AMD's ACML. However, these are not provided under a license that allows re-distribution.
Dependencies
Optional
- gcc-3.X.X Benchmarking by the ATLAS maintainers indicates that, with the exception of Core Duo and Pentium M, compiling ATLAS with gcc-3.X produces better x87 code than gcc-4.X.
Non-Multilib or Multilib
Compile the package:
make
The configuration is interactive. Simply follow the instructions presented on the screen.
Install the package:
make install <TARGET_MAKEFILE>
Where <TARGET_MAKEFILE> will be displayed at the completion of the previous step.
