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HPL_pdinfo(3) HPL Library Functions HPL_pdinfo(3)

HPL_pdinfo - Read input parameter file.

#include "hpl.h"

void HPL_pdinfo( HPL_T_test * TEST, int * NS, int * N, int * NBS, int * NB, HPL_T_ORDER * PMAPPIN, int * NPQS, int * P, int * Q, int * NPFS, HPL_T_FACT * PF, int * NBMS, int * NBM, int * NDVS, int * NDV, int * NRFS, HPL_T_FACT * RF, int * NTPS, HPL_T_TOP * TP, int * NDHS, int * DH, HPL_T_SWAP * FSWAP, int * TSWAP, int * L1NOTRAN, int * UNOTRAN, int * EQUIL, int * ALIGN );

HPL_pdinfo reads the startup information for the various tests and transmits it to all processes.

On entry, TEST points to a testing data structure. On exit, the fields of this data structure are initialized as follows: TEST->outfp specifies the output file where the results will be printed. It is only defined and used by the process 0 of the grid. TEST->thrsh specifies the threshhold value for the test ratio. TEST->epsil is the relative machine precision of the distributed computer. Finally the test counters, kfail, kpass, kskip, ktest are initialized to zero.
On exit, NS specifies the number of different problem sizes to be tested. NS is less than or equal to HPL_MAX_PARAM.
On entry, N is an array of dimension HPL_MAX_PARAM. On exit, the first NS entries of this array contain the problem sizes to run the code with.
On exit, NBS specifies the number of different distribution blocking factors to be tested. NBS must be less than or equal to HPL_MAX_PARAM.
On exit, PMAPPIN specifies the process mapping onto the no- des of the MPI machine configuration. PMAPPIN defaults to row-major ordering.
On entry, NB is an array of dimension HPL_MAX_PARAM. On exit, the first NBS entries of this array contain the values of the various distribution blocking factors, to run the code with.
On exit, NPQS specifies the number of different values that can be used for P and Q, i.e., the number of process grids to run the code with. NPQS must be less than or equal to HPL_MAX_PARAM.
On entry, P is an array of dimension HPL_MAX_PARAM. On exit, the first NPQS entries of this array contain the values of P, the number of process rows of the NPQS grids to run the code with.
On entry, Q is an array of dimension HPL_MAX_PARAM. On exit, the first NPQS entries of this array contain the values of Q, the number of process columns of the NPQS grids to run the code with.
On exit, NPFS specifies the number of different values that can be used for PF : the panel factorization algorithm to run the code with. NPFS is less than or equal to HPL_MAX_PARAM.
On entry, PF is an array of dimension HPL_MAX_PARAM. On exit, the first NPFS entries of this array contain the various panel factorization algorithms to run the code with.
On exit, NBMS specifies the number of various recursive stopping criteria to be tested. NBMS must be less than or equal to HPL_MAX_PARAM.
On entry, NBM is an array of dimension HPL_MAX_PARAM. On exit, the first NBMS entries of this array contain the values of the various recursive stopping criteria to be tested.
On exit, NDVS specifies the number of various numbers of panels in recursion to be tested. NDVS is less than or equal to HPL_MAX_PARAM.
On entry, NDV is an array of dimension HPL_MAX_PARAM. On exit, the first NDVS entries of this array contain the values of the various numbers of panels in recursion to be tested.
On exit, NRFS specifies the number of different values that can be used for RF : the recursive factorization algorithm to be tested. NRFS is less than or equal to HPL_MAX_PARAM.
On entry, RF is an array of dimension HPL_MAX_PARAM. On exit, the first NRFS entries of this array contain the various recursive factorization algorithms to run the code with.
On exit, NTPS specifies the number of different values that can be used for the broadcast topologies to be tested. NTPS is less than or equal to HPL_MAX_PARAM.
On entry, TP is an array of dimension HPL_MAX_PARAM. On exit, the first NTPS entries of this array contain the various broadcast (along rows) topologies to run the code with.
On exit, NDHS specifies the number of different values that can be used for the lookahead depths to be tested. NDHS is less than or equal to HPL_MAX_PARAM.
On entry, DH is an array of dimension HPL_MAX_PARAM. On exit, the first NDHS entries of this array contain the values of lookahead depths to run the code with. Such a value is at least 0 (no-lookahead) or greater than zero.
On exit, FSWAP specifies the swapping algorithm to be used in all tests.
On exit, TSWAP specifies the swapping threshold as a number of columns when the mixed swapping algorithm was chosen.
On exit, L1NOTRAN specifies whether the upper triangle of the panels of columns should be stored in no-transposed form (L1NOTRAN=1) or in transposed form (L1NOTRAN=0).
On exit, UNOTRAN specifies whether the panels of rows should be stored in no-transposed form (UNOTRAN=1) or transposed form (UNOTRAN=0) during their broadcast.
On exit, EQUIL specifies whether equilibration during the swap-broadcast of the panel of rows should be performed (EQUIL=1) or not (EQUIL=0).
On exit, ALIGN specifies the alignment of the dynamically allocated buffers in double precision words. ALIGN is greater than zero.

HPL_pddriver (3), HPL_pdtest (3).

December 2, 2018 HPL 2.3

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