blas-test(1)

NAME

xcblat1 xcblat3 xdblat2 xsblat1 xsblat3 xzblat2

xcblat2 xdblat1 xdblat3 xsblat2 xzblat1 xzblat3 xccblat1 xd

cblat1 xscblat1 xzcblat1 xccblat2 xdcblat2 xscblat2 xzcblat2

xccblat3 xdcblat3 xscblat3 xzcblat3 - testing programs for

blas

SYNOPSIS

x{s,d,c,z}[c]blat1
x{s,d,c,z}[c]blat{2,3} < parameter file

DESCRIPTION

This manual page documents briefly the blas testing pro

grams. 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, ac

cessed through either a Fortran and/or a C interface. These rou

tines are categorized into three levels: level1 referring to ve

cotr-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), dou

ble precision real (d), cingle precision complex (c), and double

precision complex (z).
The testing binaries examine routines in the level indi

cated by the last character in the program name and in the preci

sion 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 parame

ters specifying the problem ranges to examine on standard input.

Sample input files are found in /usr/share/doc/blas-test/exam

ples. 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 pro

grams.
On Debian systems, these programs are dynamically linked

against the blas library. This enables the user to test and com

pare alternate versions of the library, such as those provided by

atlas, through the use of the LD_LIBRARY_PATH and LD_PRELOAD en

vironment variables. One can confirm the versions of the li

braries being tested in a given environment with the aid of the

ldd program.

OPTIONS

These programs take no command line options.

AUTHOR

This manual page was written by Camm Maguire <camm@en

hanced.com>, for the Debian GNU/Linux system (but may be used by

others).

netlib January 29, 2002

BLAS-TEST(1)