Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 11/07/2023
Public

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blacs_barrier

Holds up execution of all processes within the indicated scope.

Syntax

call blacs_barrier( icontxt, scope )

Input Parameters

icontxt

INTEGER. Integer handle that indicates the context.

scope

CHARACTER*1. Parameter that indicates whether a process row (scope='R'), column ('C'), or entire grid ('A') will participate in the barrier.

Description

This routine holds up execution of all processes within the indicated scope until they have all called the routine.