Fortran Wiki
co_broadcast

Description

co_broadcast copies the value of argument a on the image with image index source_image to all images in the current team. a becomes defined as if by intrinsic assignment. If the execution was successful and stat is present, it is assigned the value zero. If the execution failed, stat gets assigned a nonzero value and, if present, errmsg gets assigned a value describing the occurred error.

Standard

TS 18508 or later

Class

Collective subroutine

Syntax

call co_broadcast(a, source_image [, stat, errmsg])

Arguments

a - intent(inout) argument; shall have the same dynamic type and type paramters on all images of the current team. If it is an array, it shall have the same shape on all images.
source_image - a scalar integer expression. It shall have the same the same value on all images and refer to an image of the current team.
stat - (optional) a scalar integer variable
errmsg - (optional) a scalar character variable

Example

program test
  integer :: val(3)
  if (this_image() == 1) then
    val = [1, 5, 3]
  end if
  call co_broadcast (val, source_image=1)
  print *, this_image, ":", val
end program test

Fortran Wiki co_broadcast