Returns information on the current grid.
call blacs_gridinfo( icontxt, nprow, npcol, myprow, mypcol )
icontxt |
INTEGER. Integer handle that indicates the context. |
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. |
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.
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