mirror of
https://github.com/LCPQ/quantum_package
synced 2024-06-02 11:25:26 +02:00
83 lines
1.6 KiB
Fortran
83 lines
1.6 KiB
Fortran
BEGIN_PROVIDER [ integer, mpi_bit_kind ]
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use bitmasks
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include 'mpif.h'
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implicit none
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BEGIN_DOC
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! MPI bit kind type
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END_DOC
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IRP_IF MPI
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if (bit_kind == 4) then
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mpi_bit_kind = MPI_INTEGER4
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else if (bit_kind == 8) then
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mpi_bit_kind = MPI_INTEGER8
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else
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stop 'Wrong bit kind in mpi_bit_kind'
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endif
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IRP_ELSE
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mpi_bit_kind = -1
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IRP_ENDIF
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END_PROVIDER
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BEGIN_PROVIDER [ logical, mpi_initialized ]
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implicit none
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BEGIN_DOC
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! Always true. Initialized MPI
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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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print *, 'ierr = ', ierr
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stop 'Unable to initialize MPI'
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endif
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IRP_ENDIF
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mpi_initialized = .True.
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END_PROVIDER
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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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! Rank of MPI process and number of MPI processes
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END_DOC
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IRP_IF MPI
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include 'mpif.h'
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PROVIDE mpi_initialized
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integer :: ierr
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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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print *, 'ierr = ', ierr
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stop 'Unable to get MPI rank'
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endif
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call write_int(6,mpi_rank,'MPI rank')
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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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print *, 'ierr = ', ierr
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stop 'Unable to get MPI size'
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endif
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call write_int(6,mpi_size,'MPI size')
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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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ASSERT (mpi_rank >= 0)
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ASSERT (mpi_rank < mpi_size)
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END_PROVIDER
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BEGIN_PROVIDER [ logical, mpi_master ]
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implicit none
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BEGIN_DOC
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! If true, rank is zero
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END_DOC
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mpi_master = (mpi_rank == 0)
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END_PROVIDER
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