Visible to Intel only — GUID: GUID-38EF16D6-8E7E-43CD-9C60-96DA7F51F057
Visible to Intel only — GUID: GUID-38EF16D6-8E7E-43CD-9C60-96DA7F51F057
blacs_gridinfo
Returns information on the current grid.
Syntax
call blacs_gridinfo( icontxt, nprow, npcol, myprow, mypcol )
Input Parameters
icontxt |
INTEGER. Integer handle that indicates the context. |
Output Parameters
nprow |
INTEGER. Number of process rows in the current process grid. |
npcol |
INTEGER. Number of process columns in the current process grid. |
myprow |
INTEGER. Row coordinate of the calling process in the process grid. |
mypcol |
INTEGER. Column coordinate of the calling process in the process grid. |
Description
This routine returns information on the current grid. If the context handle does not point at a valid context, all quantities are returned as -1.