HPL_grid_info(3) HPL Library Functions HPL_grid_info(3) NAME HPL_grid_info - Retrieve grid information. SYNOPSIS #include "hpl.h" int HPL_grid_info( const HPL_T_grid * GRID, int * NPROW, int * NPCOL, int * MYROW, int * MYCOL ); DESCRIPTION HPL_grid_info returns 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 implementa- tion. 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 2.3 December 2, 2018 HPL_grid_info(3)
NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | SEE ALSO
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