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HPL_pdmatgen(3)		     HPL Library Functions	       HPL_pdmatgen(3)

NAME
       HPL_pdmatgen - Parallel random matrix generator.

SYNOPSIS
       #include	"hpl.h"

       void  HPL_pdmatgen(  const HPL_T_grid * GRID, const int M, const	int N,
       const int NB, double * A, const int LDA,	const int ISEED	);

DESCRIPTION
       HPL_pdmatgen generates (or regenerates) a parallel 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
       GRID    (local input)	       const HPL_T_grid	*
	       On entry,  GRID	points	to the data structure  containing  the
	       process grid information.

       M       (global input)	       const int
	       On  entry,   M  specifies  the number  of rows of the matrix A.
	       M must be at least zero.

       N       (global input)	       const int
	       On entry,  N specifies the number of columns of the  matrix  A.
	       N must be at least zero.

       NB      (global input)	       const int
	       On  entry,   NB specifies the blocking factor used to partition
	       and distribute the matrix A. NB must be larger than one.

       A       (local output)	       double *
	       On entry,  A  points  to	an array of  dimension	(LDA,LocQ(N)).
	       On  exit,  this array contains the coefficients of the randomly
	       generated matrix.

       LDA     (local input)	       const int
	       On entry, LDA specifies the leading dimension of	the  array  A.
	       LDA must	be at least max(1,LocP(M)).

       ISEED   (global 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_drand (3).

HPL 2.1			       October 26, 2012		       HPL_pdmatgen(3)

NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | SEE ALSO

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