Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 2021.1
  • 12/04/2020
  • Public Content
Contents

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.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.