BLAS
Basic Linear Algebra Subprograms

BLAS is a FORTRAN77 library which incorporates all the Basic Linear Algebra Subprograms, for levels 1, 2 and 3, for single and double precision, and for real and complex arithmetic.

For the contents of the library, refer to the individual components. This page exists primarily to explain how the unified BLAS library is created from the pieces.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

BLAS is available in a FORTRAN77 version and a FORTRAN90 version.

Related Data and Programs:

BLAS1_C, a FORTRAN77 library which is the level 1 BLAS for single precision complex arithmetic.

BLAS1_D, a FORTRAN77 library which is the level 1 BLAS for double precision real arithmetic.

BLAS1_S, a FORTRAN77 library which is the level 1 BLAS for single precision real arithmetic.

BLAS1_Z, a FORTRAN77 library which is the level 1 BLAS for double precision complex arithmetic.

BLAS2, a FORTRAN77 library which handles matrix-vector operations.

BLAS3, a FORTRAN77 library which handles matrix-matrix operations.

Reference:

1. Charles Lawson, Richard Hanson, David Kincaid, Fred Krogh,
   Algorithm 539: Basic Linear Algebra Subprograms for Fortran Usage,
   ACM Transactions on Mathematical Software,
   Volume 5, Number 3, September 1979, pages 308-323.

Source Code:

• blas.sh, commands to compile the source codes into a single library;

You can go up one level to the FORTRAN77 source codes.