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 Pro- gramming, 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 gener- ated 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 ma- trix 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 2.3 December 2, 2018 HPL_pdmatgen(3)
NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | SEE ALSO
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