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       x{s,d,c,z}c?blat{1,2,3} - testing programs for blas


       x{s,d,c,z}c?blat{2,3} < parameter file


       This  manual  page  documents  briefly the blas testing programs.  This
       manual page was written for the Debian GNU/Linux  distribution  because
       the original programs do not have manual pages.

       blas  is  a  library of Basic Linear Algebra routines, accessed through
       either a Fortran and/or a C interface.  These routines are  categorized
       into three levels: level1 referring to vecotr-vector operations, level2
       to matrix-vector operations, and level3  to  matrix-matrix  operations.
       In  addition,  all  routines  are  written in four "precisions", single
       precision real (s), double precision real (d), cingle precision complex
       (c), and double precision complex (z).
       The  testing  binaries  examine  routines in the level indicated by the
       last character in the program name and in the  precision  indicated  by
       the  second  character  in  the  program  name.  The stem "blat" in the
       program name refers to a Fortran interface tester,  whereas  a  "cblat"
       stem refers to a C interface tester.
       The  test  programs  for  levels  2  and  3  read  a  set of parameters
       specifying the problem ranges to examine  on  standard  input.   Sample
       input  files  are found in /usr/share/doc/blas-test/examples.  Files of
       the form {s,d,c,z}in{2,3} are input files for the C  interface  testing
       programs,  while  files or the form {s,d,c,z}blat{2,3}d are input files
       to the Fortran testing programs.
       On Debian systems, these programs are dynamically  linked  against  the
       blas  library.   This  enables  the  user to test and compare alternate
       versions of the library, such as those provided by atlas,  through  the
       use  of  the LD_LIBRARY_PATH and LD_PRELOAD environment variables.  One
       can confirm the versions of the  libraries  being  tested  in  a  given
       environment with the aid of the ldd program.


       These programs take no command line options.


       This  manual  page was written by Camm Maguire <>, for
       the Debian GNU/Linux system (but may be used by others).

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