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Man Pages


Manual Reference Pages  -  HPL_PDINFO (3)

NAME

HPL_pdinfo - Read input parameter file.

CONTENTS

Synopsis
Description
Arguments
See Also

SYNOPSIS

#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 );

DESCRIPTION

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

ARGUMENTS

TEST (global output) HPL_T_test *
  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.
NS (global output) int *
  On exit, NS specifies the number of different problem sizes to be tested. NS is less than or equal to HPL_MAX_PARAM.
N (global output) int *
  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.
NBS (global output) int *
  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.
NB (global output) int *
  On exit, PMAPPIN specifies the process mapping onto the no- des of the MPI machine configuration. PMAPPIN defaults to row-major ordering.
PMAPPIN (global output) HPL_T_ORDER *
  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.
NPQS (global output) int *
  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.
P (global output) int *
  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.
Q (global output) int *
  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.
NPFS (global output) int *
  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.
PF (global output) HPL_T_FACT *
  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.
NBMS (global output) int *
  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.
NBM (global output) int *
  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.
NDVS (global output) int *
  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.
NDV (global output) int *
  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.
NRFS (global output) int *
  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.
RF (global output) HPL_T_FACT *
  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.
NTPS (global output) int *
  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.
TP (global output) HPL_T_TOP *
  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.
NDHS (global output) int *
  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.
DH (global output) int *
  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.
FSWAP (global output) HPL_T_SWAP *
  On exit, FSWAP specifies the swapping algorithm to be used in all tests.
TSWAP (global output) int *
  On exit, TSWAP specifies the swapping threshold as a number of columns when the mixed swapping algorithm was chosen.
L1NOTRA (global output) int *
  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).
UNOTRAN (global output) int *
  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.
EQUIL (global output) int *
  On exit, EQUIL specifies whether equilibration during the swap-broadcast of the panel of rows should be performed (EQUIL=1) or not (EQUIL=0).
ALIGN (global output) int *
  On exit, ALIGN specifies the alignment of the dynamically allocated buffers in double precision words. ALIGN is greater than zero.

SEE ALSO

HPL_pddriver (3), HPL_pdtest (3).
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HPL 2.1 HPL_PDINFO (3) October 26, 2012

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