mirror of https://gitlab.com/scemama/eplf
53 lines
1.0 KiB
Fortran
53 lines
1.0 KiB
Fortran
BEGIN_PROVIDER [ logical, mpi_master ]
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&BEGIN_PROVIDER [ integer, mpi_rank ]
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&BEGIN_PROVIDER [ integer, mpi_size ]
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implicit none
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BEGIN_DOC
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! mpi_rank : Number of the processor
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! mpi_size : Number of processors
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! mpi_master : True if the current processor is the master
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END_DOC
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IRP_IF MPI
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include 'mpif.h'
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integer :: ierr
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call MPI_INIT(ierr)
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if (ierr /= MPI_SUCCESS) then
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call abrt(irp_here,"Unable to initialize MPI")
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endif
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call MPI_COMM_RANK(MPI_COMM_WORLD, mpi_rank, ierr)
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if (ierr /= MPI_SUCCESS) then
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call abrt(irp_here,"Unable to get MPI rank")
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endif
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call MPI_COMM_SIZE(MPI_COMM_WORLD, mpi_size, ierr)
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if (ierr /= MPI_SUCCESS) then
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call abrt(irp_here,"Unable to get MPI size")
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endif
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IRP_ELSE
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mpi_rank = 0
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mpi_size = 1
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IRP_ENDIF
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mpi_master = (mpi_rank == 0)
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END_PROVIDER
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subroutine barrier()
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IRP_IF MPI
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include 'mpif.h'
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integer :: ierr
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call MPI_BARRIER(MPI_COMM_WORLD,ierr)
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if (ierr /= MPI_SUCCESS) then
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call abrt(irp_here,'Unable to realize MPI barrier')
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endif
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IRP_ENDIF
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end
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