| 1 |
|
| 2 |
module mpi_module |
| 3 |
#ifdef MPI |
| 4 |
use parameter |
| 5 |
use simulation |
| 6 |
#ifndef LAM |
| 7 |
use mpi |
| 8 |
#endif |
| 9 |
implicit none |
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PRIVATE |
| 11 |
|
| 12 |
#ifdef LAM |
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include mpif.h |
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#endif |
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|
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!!PUBLIC Subroutines contained in this module |
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public :: gather, scatter, init_mpi |
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public :: setup_parallel_mol, setup_parallel_mpi |
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public :: mpi_handle_atypes |
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public :: mpi_dist_params |
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|
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!!PUBLIC Subroutines contained in MPI module |
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public :: mpi_bcast |
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public :: mpi_allreduce |
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public :: mpi_reduce |
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public :: mpi_send |
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public :: mpi_recv |
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public :: mpi_get_processor_name |
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public :: mpi_finalize |
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|
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!!PUBLIC mpi variables |
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public :: mpi_comm_world |
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public :: mpi_character |
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public :: mpi_integer |
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public :: mpi_double_precision |
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public :: mpi_sum |
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public :: mpi_max |
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public :: mpi_status_size |
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! public :: mpi_recv_char |
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public :: mpi_any_source |
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|
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!! public variables |
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integer,public :: mpi_err |
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integer,public :: node |
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integer,public :: nprocs |
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integer,public :: row_comm,col_comm |
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integer,public :: nstart,nend,nrow,ncol |
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integer,public :: nmol_start,nmol_end |
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integer,public :: max_local,max_row,max_col |
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integer,public :: maxmol_local |
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integer,public :: number_of_cols,number_of_rows |
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|
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integer,public, allocatable, dimension(:,:) :: node_atype_index |
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type, public :: gs_plan |
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! private |
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integer :: me, nprocs, n_datum,full_size !n = # of datums on local proc |
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integer, dimension(:), pointer :: displs |
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integer, dimension(:), pointer :: counts |
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integer :: comm |
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end type gs_plan |
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|
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type (gs_plan), public :: plan_row |
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type (gs_plan), public :: plan_row3 |
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type (gs_plan), public :: plan_col |
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type (gs_plan), public :: plan_col3 |
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|
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|
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interface gather |
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module procedure gather_double |
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module procedure gather_double_dim |
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end interface |
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|
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interface scatter |
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module procedure scatter_double |
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module procedure scatter_double_dim |
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end interface |
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|
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#ifdef LAM |
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!! MPI f90 interfaces for LAM |
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|
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!! non type communication interface from MPICH mpi1.f90 |
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interface |
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SUBROUTINE MPI_INIT(IERROR) |
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INTEGER IERROR |
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END SUBROUTINE MPI_INIT |
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|
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SUBROUTINE MPI_FINALIZE(IERROR) |
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INTEGER IERROR |
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END SUBROUTINE MPI_FINALIZE |
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|
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SUBROUTINE MPI_BARRIER(COMM, IERROR) |
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INTEGER COMM, IERROR |
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END SUBROUTINE MPI_BARRIER |
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|
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SUBROUTINE MPI_COMM_RANK(COMM, RANK, IERROR) |
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INTEGER COMM, RANK, IERROR |
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END SUBROUTINE MPI_COMM_RANK |
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|
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SUBROUTINE MPI_COMM_SIZE(COMM, SIZE, IERROR) |
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INTEGER COMM, SIZE, IERROR |
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END SUBROUTINE MPI_COMM_SIZE |
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! |
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SUBROUTINE MPI_COMM_SPLIT(COMM, COLOR, KEY, NEWCOMM, IERROR) |
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INTEGER COMM, COLOR, KEY, NEWCOMM, IERROR |
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END SUBROUTINE MPI_COMM_SPLIT |
| 106 |
|
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SUBROUTINE MPI_GET_PROCESSOR_NAME( NAME, RESULTLEN, IERROR) |
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CHARACTER*(*) NAME |
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INTEGER RESULTLEN,IERROR |
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END SUBROUTINE MPI_GET_PROCESSOR_NAME |
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|
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FUNCTION MPI_WTIME() |
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DOUBLE PRECISION MPI_WTIME |
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END FUNCTION MPI_WTIME |
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! |
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FUNCTION MPI_WTICK() |
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DOUBLE PRECISION MPI_WTICK |
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END FUNCTION MPI_WTICK |
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end interface |
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|
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interface mpi_allreduce |
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module procedure mpi_allreduce_t |
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end interface |
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|
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interface mpi_reduce |
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module procedure mpi_reduce_t |
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end interface |
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|
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interface mpi_reduce_scatter |
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module procedure mpi_reduce_scatter_t |
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end interface |
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|
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interface mpi_allgatherv |
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module procedure mpi_allgatherv_t |
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end interface |
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|
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interface mpi_allgather |
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module procedure mpi_allgather_t |
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end interface |
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|
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interface mpi_bcast |
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module procedure mpi_bcast_t |
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end interface |
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|
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interface mpi_send |
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module procedure mpi_send_t |
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module procedure mpi_send_char |
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end interface |
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|
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interface mpi_recv |
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module procedure mpi_recv_t |
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module procedure mpi_recv_char |
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end interface |
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|
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#else |
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!! MPI interfaces for MPICH types not defined |
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! interface mpi_bcast |
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! module procedure mpi_bcast_t |
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! end interface |
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|
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! interface mpi_send |
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! module procedure mpi_send_t |
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! module procedure mpi_send_char |
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! end interface |
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|
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! interface mpi_recv |
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! module procedure mpi_recv_t |
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! module procedure mpi_recv_char |
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! end interface |
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#endif |
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|
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|
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contains |
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|
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|
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subroutine init_mpi() |
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|
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call mpi_init( mpi_err ) |
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call mpi_comm_rank( MPI_COMM_WORLD, node, mpi_err) |
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call mpi_comm_size( MPI_COMM_WORLD, nprocs, mpi_err ) |
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|
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end subroutine init_mpi |
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|
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|
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subroutine setup_parallel_mol(nmol,status) |
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integer, intent(in) :: nmol |
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integer, intent(out), optional :: status |
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|
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if (present(status)) status = 0 |
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nmol_start = nint(float(node)/nprocs*nmol) + 1 |
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nmol_end = nint(float(node + 1)/nprocs*nmol) |
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nmol_local = nmol_end - nmol_start + 1 |
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|
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call mpi_allreduce(nmol_local,maxmol_local,1,mpi_integer, & |
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mpi_max, mpi_comm_world,mpi_err) |
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if (mpi_err /= 0) then |
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if (present(status)) status = -1 |
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endif |
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|
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|
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end subroutine setup_parallel_mol |
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|
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|
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|
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|
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|
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subroutine setup_parallel_mpi(status) |
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|
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integer, intent(out), optional :: status |
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integer :: i,junk,junk1 |
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integer :: numcolmax,row_indx,col_indx |
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character(len=80) msg |
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|
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if (present(status)) status = 0 |
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|
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call mpi_allreduce(nlocal,natoms,1,mpi_integer, & |
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mpi_sum,mpi_comm_world,mpi_err) |
| 218 |
if (mpi_err /= 0) then |
| 219 |
if (present(status)) status = -1 |
| 220 |
endif |
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|
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! nlocal = nend - nstart + 1 |
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nend = nlocal + nstart - 1 |
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|
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|
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!! force decomp gives proc_atoms = natoms/dsqrt(nprocs) to form |
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!! a square matrix of length dsqrt(nprocs) |
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|
| 229 |
numcolmax = nint(dsqrt(dble(nprocs))) |
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do i = 1, numcolmax |
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if (mod(nprocs,i).eq.0) number_of_cols = i |
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end do |
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|
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number_of_rows = nprocs/number_of_cols |
| 235 |
|
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|
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|
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row_indx = node/number_of_cols |
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call mpi_comm_split(mpi_comm_world,row_indx,0,row_comm,mpi_err) |
| 240 |
|
| 241 |
col_indx = mod(node,number_of_cols) |
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call mpi_comm_split(mpi_comm_world,col_indx,0,col_comm,mpi_err) |
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|
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call mpi_comm_size(row_comm,junk,mpi_err) |
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call mpi_comm_size(col_comm,junk1,mpi_err) |
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|
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|
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!! figure out natoms_row, number of atoms owned by my row |
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!! figure out natoms_col, number of atoms owned by my col |
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|
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call mpi_allreduce(nlocal,nrow,1,mpi_integer,mpi_sum,row_comm,mpi_err) |
| 252 |
if (mpi_err /= 0) then |
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if (present(status)) status = -1 |
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endif |
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|
| 256 |
call mpi_allreduce(nlocal,ncol,1,mpi_integer,mpi_sum,col_comm,mpi_err) |
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|
| 258 |
|
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if (mpi_err /= 0) then |
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if (present(status)) status = -1 |
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endif |
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|
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|
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! Init gather scatter plans ala plimpton... |
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|
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call plan_gather_scatter(nlocal,row_comm,plan_row) |
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call plan_gather_scatter(3*nlocal,row_comm,plan_row3) |
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call plan_gather_scatter(nlocal,col_comm,plan_col) |
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call plan_gather_scatter(3*nlocal,col_comm,plan_col3) |
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|
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|
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|
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! compute current bounds mpi_max will return the largest value |
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|
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|
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call mpi_allreduce(nlocal,max_local,1,mpi_integer,mpi_max, & |
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mpi_comm_world,mpi_err) |
| 278 |
if (mpi_err /= 0) then |
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if (present(status)) status = -1 |
| 280 |
endif |
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|
| 282 |
call mpi_allreduce(nrow,max_row,1,mpi_integer,mpi_max, & |
| 283 |
mpi_comm_world,mpi_err) |
| 284 |
if (mpi_err /= 0) then |
| 285 |
if (present(status)) status = -1 |
| 286 |
endif |
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|
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call mpi_allreduce(ncol,max_col,1,mpi_integer,mpi_max, & |
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mpi_comm_world,mpi_err) |
| 290 |
if (mpi_err /= 0) then |
| 291 |
if (present(status)) status = -1 |
| 292 |
endif |
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|
| 294 |
|
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!! allocate mpi row and col arrays... |
| 296 |
! call allocate_mpi_row_arrays(max_row) |
| 297 |
! call allocate_mpi_col_arrays(max_col) |
| 298 |
!! allocate mpi row and col arrays... |
| 299 |
call allocate_mpi_row_arrays(nrow) |
| 300 |
call allocate_mpi_col_arrays(ncol) |
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|
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|
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|
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end subroutine setup_parallel_mpi |
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|
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#ifdef MPI |
| 307 |
!! distributes params from node 0 to other nodes.... |
| 308 |
subroutine mpi_dist_params() |
| 309 |
|
| 310 |
!! parameters for every sim that each node needs to know |
| 311 |
|
| 312 |
call mpi_bcast(command,80,mpi_character,0, & |
| 313 |
mpi_comm_world,mpi_err) |
| 314 |
call mpi_bcast(ensemble,80,mpi_character,0, & |
| 315 |
mpi_comm_world,mpi_err) |
| 316 |
call mpi_bcast(sim_type,80,mpi_character,0, & |
| 317 |
mpi_comm_world,mpi_err) |
| 318 |
call mpi_bcast(force_field,80,mpi_character,0, & |
| 319 |
mpi_comm_world,mpi_err) |
| 320 |
call mpi_bcast(target_temp,1,mpi_double_precision,0, & |
| 321 |
mpi_comm_world,mpi_err) |
| 322 |
call mpi_bcast(checktemp,1,mpi_logical,0, & |
| 323 |
mpi_comm_world,mpi_err) |
| 324 |
call mpi_bcast(run_time,1,mpi_double_precision,0, & |
| 325 |
mpi_comm_world,mpi_err) |
| 326 |
call mpi_bcast(dt,1,mpi_double_precision,0, & |
| 327 |
mpi_comm_world,mpi_err) |
| 328 |
call mpi_bcast(rcut,1,mpi_double_precision,0, & |
| 329 |
mpi_comm_world,mpi_err) |
| 330 |
call mpi_bcast(skin_thickness,1,mpi_double_precision,0, & |
| 331 |
mpi_comm_world,mpi_err) |
| 332 |
call mpi_bcast(therm_variance,1,mpi_double_precision,0, & |
| 333 |
mpi_comm_world,mpi_err) |
| 334 |
call mpi_bcast(iseed,1,mpi_integer,0, & |
| 335 |
mpi_comm_world,mpi_err) |
| 336 |
call mpi_bcast(check_temp_steps,1,mpi_integer,0, & |
| 337 |
mpi_comm_world,mpi_err) |
| 338 |
call mpi_bcast(write_config_steps,1,mpi_integer,0, & |
| 339 |
mpi_comm_world,mpi_err) |
| 340 |
|
| 341 |
|
| 342 |
|
| 343 |
!! cluster parameters |
| 344 |
call mpi_bcast(core_model,80,mpi_character,0, & |
| 345 |
mpi_comm_world,mpi_err) |
| 346 |
call mpi_bcast(shell_model,80,mpi_character,0, & |
| 347 |
mpi_comm_world,mpi_err) |
| 348 |
call mpi_bcast(r_core,1,mpi_double_precision,0, & |
| 349 |
mpi_comm_world,mpi_err) |
| 350 |
call mpi_bcast(r_shell,1,mpi_double_precision,0, & |
| 351 |
mpi_comm_world,mpi_err) |
| 352 |
call mpi_bcast(cell, 1,mpi_double_precision,0, & |
| 353 |
mpi_comm_world,mpi_err) |
| 354 |
call mpi_bcast(vacancy_radius, 1,mpi_double_precision,0, & |
| 355 |
mpi_comm_world,mpi_err) |
| 356 |
call mpi_bcast(vacancy_fraction, 1,mpi_double_precision,0, & |
| 357 |
mpi_comm_world,mpi_err) |
| 358 |
|
| 359 |
|
| 360 |
|
| 361 |
!! liquid paramters |
| 362 |
call mpi_bcast(solute_model,80,mpi_character,0, & |
| 363 |
mpi_comm_world,mpi_err) |
| 364 |
call mpi_bcast(solvent_model,80,mpi_character,0, & |
| 365 |
mpi_comm_world,mpi_err) |
| 366 |
call mpi_bcast(solute_x,1,mpi_double_precision,0, & |
| 367 |
mpi_comm_world,mpi_err) |
| 368 |
call mpi_bcast(density,1,mpi_double_precision,0, & |
| 369 |
mpi_comm_world,mpi_err) |
| 370 |
call mpi_bcast(ncells,1,mpi_integer,0, & |
| 371 |
mpi_comm_world,mpi_err) |
| 372 |
! MPI parameter |
| 373 |
call mpi_bcast(newtons_thrd,1,mpi_logical,0, & |
| 374 |
mpi_comm_world,mpi_err) |
| 375 |
! parameter for langevin dynamics |
| 376 |
call mpi_bcast(eta,1,mpi_double_precision,0, & |
| 377 |
mpi_comm_world,mpi_err) |
| 378 |
call mpi_bcast(bath_temp,1,mpi_double_precision,0, & |
| 379 |
mpi_comm_world,mpi_err) |
| 380 |
call mpi_bcast(langevin_skin_delta,1,mpi_double_precision,0, & |
| 381 |
mpi_comm_world,mpi_err) |
| 382 |
call mpi_bcast(use_langevin_skin,1,mpi_logical,0, & |
| 383 |
mpi_comm_world,mpi_err) |
| 384 |
|
| 385 |
|
| 386 |
end subroutine mpi_dist_params |
| 387 |
#endif |
| 388 |
|
| 389 |
|
| 390 |
|
| 391 |
!! subroutine to distribute column and row atom type info... |
| 392 |
|
| 393 |
subroutine mpi_handle_atypes(status) |
| 394 |
integer :: row_proc_size, column_proc_size |
| 395 |
integer :: i,ntmp |
| 396 |
integer, allocatable, dimension(:) :: ident_row_displs, ident_row_counts |
| 397 |
integer, allocatable, dimension(:) :: ident_column_displs, ident_column_counts |
| 398 |
! integer :: max_alloc |
| 399 |
integer, intent(out), optional :: status |
| 400 |
! max_alloc = max(max_row,max_col) |
| 401 |
|
| 402 |
!! setup tag_local arrays |
| 403 |
ntmp = 0 |
| 404 |
if (present(status)) status = 0 |
| 405 |
do i = 1,natoms |
| 406 |
if (i >= nstart .AND. i <= nend) then |
| 407 |
ntmp = i - nstart + 1 |
| 408 |
tag_local(ntmp) = i |
| 409 |
end if |
| 410 |
end do |
| 411 |
|
| 412 |
!! do row idents and tags |
| 413 |
call mpi_comm_size(row_comm,row_proc_size,mpi_err) |
| 414 |
|
| 415 |
call mpi_barrier(mpi_comm_world,mpi_err) |
| 416 |
|
| 417 |
allocate(ident_row_displs(row_proc_size)) |
| 418 |
allocate(ident_row_counts(row_proc_size)) |
| 419 |
|
| 420 |
|
| 421 |
call mpi_allgather(nlocal,1,mpi_integer,ident_row_counts,1,mpi_integer, & |
| 422 |
row_comm,mpi_err) |
| 423 |
if (mpi_err /= 0) then |
| 424 |
if (present(status)) status = -1 |
| 425 |
endif |
| 426 |
|
| 427 |
ident_row_displs(1) = 0 |
| 428 |
do i = 2, row_proc_size |
| 429 |
ident_row_displs(i) = ident_row_displs(i-1) + ident_row_counts(i-1) |
| 430 |
enddo |
| 431 |
|
| 432 |
|
| 433 |
call mpi_allgatherv(ident,nlocal,mpi_integer, & |
| 434 |
ident_row,ident_row_counts,ident_row_displs,mpi_integer,row_comm,mpi_err) |
| 435 |
if (mpi_err /= 0) then |
| 436 |
if (present(status)) status = -1 |
| 437 |
endif |
| 438 |
|
| 439 |
call mpi_allgatherv(tag_local,nlocal,mpi_integer, & |
| 440 |
tag_row,ident_row_counts,ident_row_displs,mpi_integer,row_comm,mpi_err) |
| 441 |
|
| 442 |
if (mpi_err /= 0) then |
| 443 |
if (present(status)) status = -1 |
| 444 |
endif |
| 445 |
|
| 446 |
deallocate(ident_row_displs) |
| 447 |
deallocate(ident_row_counts) |
| 448 |
|
| 449 |
!! do col idents |
| 450 |
call mpi_comm_size(col_comm,column_proc_size,mpi_err) |
| 451 |
|
| 452 |
allocate(ident_column_displs(column_proc_size)) |
| 453 |
allocate(ident_column_counts(column_proc_size)) |
| 454 |
|
| 455 |
call mpi_allgather(nlocal,1,mpi_integer,ident_column_counts,1,mpi_integer, & |
| 456 |
col_comm,mpi_err) |
| 457 |
if (mpi_err /= 0) then |
| 458 |
if (present(status)) status = -1 |
| 459 |
endif |
| 460 |
|
| 461 |
ident_column_displs(1) = 0 |
| 462 |
do i = 2, column_proc_size |
| 463 |
ident_column_displs(i) = ident_column_displs(i-1) + ident_column_counts(i-1) |
| 464 |
enddo |
| 465 |
|
| 466 |
call mpi_allgatherv(ident,nlocal,mpi_integer, & |
| 467 |
ident_col,ident_column_counts,ident_column_displs,mpi_integer,col_comm,mpi_err) |
| 468 |
if (mpi_err /= 0) then |
| 469 |
if (present(status)) status = -1 |
| 470 |
endif |
| 471 |
|
| 472 |
call mpi_allgatherv(tag_local,nlocal,mpi_integer, & |
| 473 |
tag_col,ident_column_counts,ident_column_displs,mpi_integer,col_comm,mpi_err) |
| 474 |
if (mpi_err /= 0) then |
| 475 |
if (present(status)) status = -1 |
| 476 |
endif |
| 477 |
|
| 478 |
|
| 479 |
deallocate(ident_column_displs) |
| 480 |
deallocate(ident_column_counts) |
| 481 |
|
| 482 |
|
| 483 |
end subroutine mpi_handle_atypes |
| 484 |
|
| 485 |
|
| 486 |
!! initalizes a gather scatter plan |
| 487 |
subroutine plan_gather_scatter( local_number, & |
| 488 |
orig_comm, this_plan) |
| 489 |
|
| 490 |
type (gs_plan), intent(out) :: this_plan |
| 491 |
integer, intent(in) :: local_number |
| 492 |
integer, intent(in) :: orig_comm |
| 493 |
integer :: sizeof_int |
| 494 |
integer :: ierror |
| 495 |
integer :: comm |
| 496 |
integer :: me |
| 497 |
integer :: comm_procs |
| 498 |
integer :: i,junk |
| 499 |
integer :: number_of_particles |
| 500 |
|
| 501 |
|
| 502 |
|
| 503 |
number_of_particles = 0 |
| 504 |
call mpi_comm_dup(orig_comm,comm,mpi_err) |
| 505 |
call mpi_comm_rank(comm,me,mpi_err) |
| 506 |
call mpi_comm_size(comm,comm_procs,mpi_err) |
| 507 |
|
| 508 |
sizeof_int = selected_int_kind(4) |
| 509 |
|
| 510 |
allocate (this_plan%counts(0:comm_procs-1),STAT=ierror) |
| 511 |
if (ierror /= 0) then |
| 512 |
|
| 513 |
end if |
| 514 |
|
| 515 |
allocate (this_plan%displs(0:comm_procs-1),STAT=ierror) |
| 516 |
if (ierror /= 0) then |
| 517 |
|
| 518 |
end if |
| 519 |
|
| 520 |
|
| 521 |
call mpi_allgather(local_number,1,mpi_integer,this_plan%counts, & |
| 522 |
1,mpi_integer,comm,mpi_err) |
| 523 |
|
| 524 |
|
| 525 |
!! figure out the total number of particles in this plan |
| 526 |
number_of_particles = sum(this_plan%counts) |
| 527 |
|
| 528 |
|
| 529 |
!initialize plan |
| 530 |
this_plan%displs(0) = 0 |
| 531 |
do i = 1, comm_procs - 1,1 |
| 532 |
this_plan%displs(i) = this_plan%displs(i-1) + this_plan%counts(i-1) |
| 533 |
end do |
| 534 |
|
| 535 |
|
| 536 |
this_plan%me = me |
| 537 |
this_plan%nprocs = comm_procs |
| 538 |
this_plan%full_size = number_of_particles |
| 539 |
this_plan%comm = comm |
| 540 |
this_plan%n_datum = local_number |
| 541 |
|
| 542 |
|
| 543 |
end subroutine plan_gather_scatter |
| 544 |
|
| 545 |
subroutine unplan_gather_scatter(this_plan) |
| 546 |
|
| 547 |
type (gs_plan), intent(inout) :: this_plan |
| 548 |
|
| 549 |
call mpi_comm_free(this_plan%comm,mpi_err) |
| 550 |
|
| 551 |
deallocate(this_plan%counts) |
| 552 |
deallocate(this_plan%displs) |
| 553 |
|
| 554 |
end subroutine unplan_gather_scatter |
| 555 |
|
| 556 |
subroutine gather_double( sbuffer, rbuffer, this_plan, status) |
| 557 |
|
| 558 |
type (gs_plan), intent(in) :: this_plan |
| 559 |
real( kind = DP ), dimension(:), intent(in) :: sbuffer |
| 560 |
real( kind = DP ), dimension(:), intent(in) :: rbuffer |
| 561 |
integer :: noffset |
| 562 |
integer, intent(out), optional :: status |
| 563 |
|
| 564 |
if (present(status)) status = 0 |
| 565 |
noffset = this_plan%displs(this_plan%me) |
| 566 |
|
| 567 |
call mpi_allgatherv(sbuffer,this_plan%n_datum, mpi_double_precision, & |
| 568 |
rbuffer,this_plan%counts,this_plan%displs,mpi_double_precision, & |
| 569 |
this_plan%comm, mpi_err) |
| 570 |
|
| 571 |
if (mpi_err /= 0) then |
| 572 |
if (present(status)) status = -1 |
| 573 |
endif |
| 574 |
|
| 575 |
end subroutine gather_double |
| 576 |
|
| 577 |
subroutine gather_double_dim( sbuffer, rbuffer, this_plan, status) |
| 578 |
|
| 579 |
type (gs_plan), intent(in) :: this_plan |
| 580 |
real( kind = DP ), dimension(:,:), intent(in) :: sbuffer |
| 581 |
real( kind = DP ), dimension(:,:), intent(in) :: rbuffer |
| 582 |
integer :: noffset,i,ierror |
| 583 |
integer, intent(out), optional :: status |
| 584 |
|
| 585 |
external mpi_allgatherv |
| 586 |
|
| 587 |
if (present(status)) status = 0 |
| 588 |
|
| 589 |
! noffset = this_plan%displs(this_plan%me) |
| 590 |
|
| 591 |
call mpi_allgatherv(sbuffer,this_plan%n_datum, mpi_double_precision, & |
| 592 |
rbuffer,this_plan%counts,this_plan%displs,mpi_double_precision, & |
| 593 |
this_plan%comm, mpi_err) |
| 594 |
|
| 595 |
if (mpi_err /= 0) then |
| 596 |
if (present(status)) status = -1 |
| 597 |
endif |
| 598 |
|
| 599 |
end subroutine gather_double_dim |
| 600 |
|
| 601 |
subroutine scatter_double( sbuffer, rbuffer, this_plan, status) |
| 602 |
|
| 603 |
type (gs_plan), intent(in) :: this_plan |
| 604 |
real( kind = DP ), dimension(:), intent(in) :: sbuffer |
| 605 |
real( kind = DP ), dimension(:), intent(in) :: rbuffer |
| 606 |
integer, intent(out), optional :: status |
| 607 |
external mpi_reduce_scatter |
| 608 |
|
| 609 |
if (present(status)) status = 0 |
| 610 |
|
| 611 |
call mpi_reduce_scatter(sbuffer,rbuffer, this_plan%counts, & |
| 612 |
mpi_double_precision, MPI_SUM, this_plan%comm, mpi_err) |
| 613 |
|
| 614 |
if (mpi_err /= 0) then |
| 615 |
if (present(status)) status = -1 |
| 616 |
endif |
| 617 |
|
| 618 |
end subroutine scatter_double |
| 619 |
|
| 620 |
subroutine scatter_double_dim( sbuffer, rbuffer, this_plan, status) |
| 621 |
|
| 622 |
type (gs_plan), intent(in) :: this_plan |
| 623 |
real( kind = DP ), dimension(:,:), intent(in) :: sbuffer |
| 624 |
real( kind = DP ), dimension(:,:), intent(in) :: rbuffer |
| 625 |
integer, intent(out), optional :: status |
| 626 |
external mpi_reduce_scatter |
| 627 |
|
| 628 |
if (present(status)) status = 0 |
| 629 |
call mpi_reduce_scatter(sbuffer,rbuffer, this_plan%counts, & |
| 630 |
mpi_double_precision, MPI_SUM, this_plan%comm, mpi_err) |
| 631 |
|
| 632 |
if (mpi_err /= 0) then |
| 633 |
if (present(status)) status = -1 |
| 634 |
endif |
| 635 |
|
| 636 |
end subroutine scatter_double_dim |
| 637 |
|
| 638 |
|
| 639 |
!!$ subroutine mpi_bcast_t(BUFFER, COUNT, DATATYPE, ROOT, COMM, & |
| 640 |
!!$ IERROR) |
| 641 |
!!$ character (len=*) :: BUFFER |
| 642 |
!!$ integer :: COUNT, DATATYPE, ROOT, COMM, IERROR |
| 643 |
!!$ external MPI_BCAST |
| 644 |
!!$ call MPI_BCAST(BUFFER, COUNT, DATATYPE, ROOT, COMM, IERROR) |
| 645 |
!!$ end subroutine mpi_bcast_t |
| 646 |
!!$ |
| 647 |
!!$ SUBROUTINE MPI_SEND_T(BUF, COUNT, DATATYPE, DEST, TAG, COMM, & |
| 648 |
!!$ IERROR) |
| 649 |
!!$ character(len=*), dimension(:) :: BUF |
| 650 |
!!$ INTEGER COUNT, DATATYPE, DEST, TAG, COMM, IERROR |
| 651 |
!!$ EXTERNAL MPI_SEND |
| 652 |
!!$ CALL MPI_SEND(BUF, COUNT, DATATYPE, DEST, TAG, COMM, IERROR) |
| 653 |
!!$ END SUBROUTINE MPI_SEND_T |
| 654 |
!!$ |
| 655 |
!!$ subroutine mpi_recv_T(BUF, COUNT, DATATYPE, SOURCE, TAG, COMM, & |
| 656 |
!!$ STATUS, IERROR) |
| 657 |
!!$ USE MPI_CONSTANTS,ONLY: MPI_STATUS_SIZE |
| 658 |
!!$ character(len=*), dimension(:) :: BUF |
| 659 |
!!$ INTEGER COUNT, DATATYPE, SOURCE, TAG, COMM, & |
| 660 |
!!$ & STATUS(MPI_STATUS_SIZE), IERROR |
| 661 |
!!$ EXTERNAL MPI_RECV |
| 662 |
!!$ CALL MPI_RECV(BUF, COUNT, DATATYPE, SOURCE, TAG, COMM, STATUS, & |
| 663 |
!!$ & IERROR) |
| 664 |
!!$ end subroutine mpi_recv_T |
| 665 |
|
| 666 |
|
| 667 |
!!$ SUBROUTINE MPI_SEND_char(BUF, COUNT, DATATYPE, DEST, TAG, COMM, & |
| 668 |
!!$ IERROR) |
| 669 |
!!$ character(len=*) :: BUF |
| 670 |
!!$ INTEGER COUNT, DATATYPE, DEST, TAG, COMM, IERROR |
| 671 |
!!$ EXTERNAL MPI_SEND |
| 672 |
!!$ CALL MPI_SEND(BUF, COUNT, DATATYPE, DEST, TAG, COMM, IERROR) |
| 673 |
!!$ END SUBROUTINE MPI_SEND_char |
| 674 |
!!$ |
| 675 |
!!$ subroutine mpi_recv_char(BUF, COUNT, DATATYPE, SOURCE, TAG, COMM, & |
| 676 |
!!$ STATUS, IERROR) |
| 677 |
!!$ USE MPI_CONSTANTS,ONLY: MPI_STATUS_SIZE |
| 678 |
!!$ character(len=*) :: BUF |
| 679 |
!!$ INTEGER :: COUNT, DATATYPE, SOURCE, TAG, COMM, & |
| 680 |
!!$ STATUS(MPI_STATUS_SIZE), IERROR |
| 681 |
!!$ EXTERNAL MPI_RECV |
| 682 |
!!$ CALL MPI_RECV(BUF, COUNT, DATATYPE, SOURCE, TAG, COMM, STATUS, & |
| 683 |
!!$ IERROR) |
| 684 |
!!$ end subroutine mpi_recv_char |
| 685 |
|
| 686 |
#endif |
| 687 |
end module mpi_module |
| 688 |
|
