# blacs_pnum

Returns the system process number of the process in the process grid.

## Syntax

call blacs_pnum( icontxt, prow, pcol )

## Input Parameters

icontxt | INTEGER. Integer handle that indicates the context.
prow | INTEGER. Row coordinate of the process the system process number of which is to be determined.
pcol | INTEGER. Column coordinate of the process the system process number of which is to be determined.

## Description

This function returns the system process number of the process at `{PROW, PCOL}` in the process grid.

## See Also

BLACS Routines Usage Example
Parent topic: Informational Routines