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Man Pages


Manual Reference Pages  -  HPL_DMATGEN (3)

NAME

HPL_dmatgen - random matrix generator.

CONTENTS

Synopsis
Description
Arguments
See Also

SYNOPSIS

#include "hpl.h"

void HPL_dmatgen( const int M, const int N, double * A, const int LDA, const int ISEED );

DESCRIPTION

HPL_dmatgen generates (or regenerates) a random matrix A.

The pseudo-random generator uses the linear congruential algorithm: X(n+1) = (a * X(n) + c) mod m as described in the Art of Computer Programming, Knuth 1973, Vol. 2.

ARGUMENTS

M (input) const int
  On entry, M specifies the number of rows of the matrix A. M must be at least zero.
N (input) const int
  On entry, N specifies the number of columns of the matrix A. N must be at least zero.
A (output) double *
  On entry, A points to an array of dimension (LDA,N). On exit, this array contains the coefficients of the randomly generated matrix.
LDA (input) const int
  On entry, LDA specifies the leading dimension of the array A. LDA must be at least max(1,M).
ISEED (input) const int
  On entry, ISEED specifies the seed number to generate the matrix A. ISEED must be at least zero.

SEE ALSO

HPL_ladd (3), HPL_lmul (3), HPL_setran (3), HPL_xjumpm (3), HPL_jumpit (3), HPL_rand (3).
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HPL 2.1 HPL_DMATGEN (3) October 26, 2012

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