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! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
! Copyright by The HDF Group. *
! Copyright by the Board of Trustees of the University of Illinois. *
! All rights reserved. *
! *
! This file is part of HDF5. The full HDF5 copyright notice, including *
! terms governing use, modification, and redistribution, is contained in *
! the COPYING file, which can be found at the root of the source code *
! distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
! If you do not have access to either file, you may request a copy from *
! help@hdfgroup.org. *
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!
! main program for parallel HDF5 Fortran tests
!
PROGRAM parallel_test
USE HDF5
USE MPI
USE TH5_MISC
IMPLICIT NONE
INTEGER :: mpierror ! MPI hdferror flag
INTEGER :: hdferror ! HDF hdferror flag
INTEGER :: ret_total_error = 0 ! number of errors in subroutine
INTEGER :: total_error = 0 ! sum of the number of errors
INTEGER :: mpi_size ! number of processes in the group of communicator
INTEGER :: mpi_rank ! rank of the calling process in the communicator
INTEGER :: length = 12000 ! length of array
INTEGER :: i,j
! use collective MPI I/O
LOGICAL, DIMENSION(1:2) :: do_collective = (/.FALSE.,.TRUE./)
CHARACTER(LEN=11), DIMENSION(1:2) :: chr_collective =(/"independent", "collective "/)
! use chunking
LOGICAL, DIMENSION(1:2) :: do_chunk = (/.FALSE.,.TRUE./)
CHARACTER(LEN=10), DIMENSION(1:2) :: chr_chunk =(/"contiguous", "chunk "/)
!
! initialize MPI
!
CALL mpi_init(mpierror)
IF (mpierror .NE. MPI_SUCCESS) THEN
WRITE(*,*) "MPI_INIT *FAILED*"
ENDIF
CALL mpi_comm_rank( MPI_COMM_WORLD, mpi_rank, mpierror )
IF (mpierror .NE. MPI_SUCCESS) THEN
WRITE(*,*) "MPI_COMM_RANK *FAILED* Process = ", mpi_rank
ENDIF
CALL mpi_comm_size( MPI_COMM_WORLD, mpi_size, mpierror )
IF (mpierror .NE. MPI_SUCCESS) THEN
WRITE(*,*) "MPI_COMM_SIZE *FAILED* Process = ", mpi_rank
ENDIF
!
! initialize the HDF5 fortran interface
!
CALL h5open_f(hdferror)
!
! test write/read dataset by hyperslabs (contiguous/chunk) with independent/collective MPI I/O
!
DO i = 1, 2
DO j = 1, 2
ret_total_error = 0
CALL hyper(length, do_collective(j), do_chunk(i), mpi_size, mpi_rank, ret_total_error)
IF(mpi_rank==0) CALL write_test_status(ret_total_error, &
"Writing/reading dataset by hyperslabs ("//TRIM(chr_chunk(i))//" layout, "//TRIM(chr_collective(j))//" MPI I/O)", &
total_error)
ENDDO
ENDDO
!
! test write/read several datasets (independent MPI I/O)
!
ret_total_error = 0
CALL multiple_dset_write(length, do_collective(1), do_chunk(1), mpi_size, mpi_rank, ret_total_error)
IF(mpi_rank==0) CALL write_test_status(ret_total_error, &
'Writing/reading several datasets (contiguous layout, independent MPI I/O)', total_error)
!
! close HDF5 interface
!
CALL h5close_f(hdferror)
!
! close MPI
!
IF (total_error == 0) THEN
CALL mpi_finalize(mpierror)
IF (mpierror .NE. MPI_SUCCESS) THEN
WRITE(*,*) "MPI_FINALIZE *FAILED* Process = ", mpi_rank
ENDIF
ELSE
WRITE(*,*) 'Errors detected in process ', mpi_rank
CALL mpi_abort(MPI_COMM_WORLD, 1, mpierror)
IF (mpierror .NE. MPI_SUCCESS) THEN
WRITE(*,*) "MPI_ABORT *FAILED* Process = ", mpi_rank
ENDIF
ENDIF
!
! end main program
!
END PROGRAM parallel_test
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