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test: add test for MPI_Barrier #35

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Merged
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Mar 24, 2025
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test: add test for MPI_Barrier #35

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22 changes: 22 additions & 0 deletions tests/barrier_1.f90
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program barrier_1
use mpi
implicit none

integer :: rank, size, ierr

! Initialize MPI
call MPI_Init(ierr)

call MPI_Comm_rank(MPI_COMM_WORLD, rank, ierr)
call MPI_Comm_size(MPI_COMM_WORLD, size, ierr)

print *, "Process ", rank, " reached before the barrier."

! Synchronize all processes at this point
call MPI_Barrier(MPI_COMM_WORLD, ierr)

print *, "Process ", rank, " passed the barrier."

call MPI_Finalize(ierr)

end program