Search:

HPL_grid_info(3) HPL Library Functions HPL_grid_info(3)## NAME

HPL_grid_info - Retrieve grid information.## SYNOPSIS

#include"hpl.h"intHPL_grid_info(constHPL_T_grid*GRID,int*NPROW,int*NPCOL,int*MYROW,int*MYCOL);## DESCRIPTION

HPL_grid_inforeturns the grid shape and the coordinates in the grid of the calling process. Successful completion is indicated by the returned error code MPI_SUCCESS. Other error codes depend on the MPI implementation.## ARGUMENTS

GRID (local input) const HPL_T_grid * On entry, GRID points to the data structure containing the process grid information. NPROW (global output) int * On exit, NPROW specifies the number of process rows in the grid. NPROW is at least one. NPCOL (global output) int * On exit, NPCOL specifies the number of process columns in the grid. NPCOL is at least one. MYROW (global output) int * On exit, MYROW specifies my row process coordinate in the grid. MYROW is greater than or equal to zero and less than NPROW. MYCOL (global output) int * On exit, MYCOL specifies my column process coordinate in the grid. MYCOL is greater than or equal to zero and less than NPCOL.## SEE ALSO

HPL_pnum(3),HPL_grid_init(3),HPL_grid_exit(3). HPL 2.1 October 26, 2012 HPL_grid_info(3)

Search: