HPL_dmatgen man page

HPL_dmatgen — random matrix generator.

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).

Info

October 26, 2012 HPL 2.1 HPL Library Functions