[7541] | 1 | ! ============================================================================================================================== |
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| 2 | ! MODULE : mod_orchidee_para |
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| 3 | ! |
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| 4 | ! CONTACT : orchidee-help _at_ listes.ipsl.fr |
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| 5 | ! |
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| 6 | ! LICENCE : IPSL (2006) |
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| 7 | ! This software is governed by the CeCILL licence see ORCHIDEE/ORCHIDEE_CeCILL.LIC |
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| 8 | ! |
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| 9 | !>\BRIEF Initialization of MPI and OpenMP parallelization. |
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| 10 | !! |
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| 11 | !!\n DESCRIPTION : This module contains subroutines to be called for the initialization of MPI and OpenMP parallelization. |
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| 12 | !! Note that some subroutines are called only for the offline case such as init_orchidee_para and |
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| 13 | !! init_orchidee_data_para_driver. |
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| 14 | !! |
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| 15 | !! SVN : |
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| 16 | !! $HeadURL: svn://forge.ipsl.jussieu.fr/orchidee/branches/ORCHIDEE_2_2/ORCHIDEE/src_parallel/mod_orchidee_para.F90 $ |
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| 17 | !! $Date: 2018-08-02 09:06:40 +0200 (Thu, 02 Aug 2018) $ |
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| 18 | !! $Revision: 5364 $ |
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| 19 | !! \n |
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| 20 | !_ ================================================================================================================================ |
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| 21 | MODULE mod_orchidee_para |
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| 22 | |
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| 23 | USE mod_orchidee_para_var |
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| 24 | USE mod_orchidee_mpi_data |
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| 25 | USE mod_orchidee_omp_data |
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| 26 | USE mod_orchidee_transfert_para |
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| 27 | |
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| 28 | CONTAINS |
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| 29 | |
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| 30 | !! ============================================================================================================================= |
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| 31 | !! SUBROUTINE: Init_orchidee_para |
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| 32 | !! |
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| 33 | !>\BRIEF Initialization of MPI and OpenMP parallelization in offline case |
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| 34 | !! |
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| 35 | !! DESCRIPTION: First subroutine for initialization to be called for the initialization of the MPI and OpenMP parallelization |
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| 36 | !! in offline mode. This routine will call the successively the initialization for OMP then for MPI. |
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| 37 | !! We define in this routine the variable "is_root_prc = is_mpi_root AND is_omp_root". |
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| 38 | !! |
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| 39 | !! \n |
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| 40 | !_ ============================================================================================================================== |
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| 41 | SUBROUTINE Init_orchidee_para(communicator) |
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| 42 | IMPLICIT NONE |
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| 43 | INTEGER,OPTIONAL,INTENT(in) :: communicator |
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| 44 | |
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| 45 | CALL Init_orchidee_omp |
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| 46 | |
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| 47 | |
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| 48 | IF ( PRESENT(communicator) ) THEN |
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| 49 | CALL Init_orchidee_mpi(communicator) |
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| 50 | ELSE |
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| 51 | CALL Init_orchidee_mpi |
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| 52 | ENDIF |
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| 53 | |
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| 54 | |
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| 55 | IF (is_mpi_root .AND. is_omp_root) THEN |
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| 56 | is_root_prc=.TRUE. |
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| 57 | ELSE |
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| 58 | is_root_prc=.FALSE. |
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| 59 | ENDIF |
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| 60 | END SUBROUTINE Init_orchidee_para |
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| 61 | |
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| 62 | |
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| 63 | !! ============================================================================================================================= |
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| 64 | !! SUBROUTINE: Init_orchidee_data_para_driver |
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| 65 | !! |
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| 66 | !>\BRIEF Initialization of variables related to the local domain decomposition called by the offline driver. |
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| 67 | !! |
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| 68 | !! DESCRIPTION: Initialization of variables related to the local domain decomposition. |
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| 69 | !! This subroutine is only called in offline mode by the driver. |
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| 70 | !! |
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| 71 | !! \n |
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| 72 | !_ ============================================================================================================================== |
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| 73 | SUBROUTINE Init_orchidee_data_para_driver(nbp,kindex_glo) |
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| 74 | |
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| 75 | IMPLICIT NONE |
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| 76 | INTEGER,INTENT(IN) :: nbp |
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| 77 | INTEGER,INTENT(IN) :: kindex_glo(nbp) |
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| 78 | |
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| 79 | INTEGER :: first_point |
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| 80 | INTEGER :: last_point |
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| 81 | INTEGER :: nbp_loc |
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| 82 | INTEGER :: nbp_loc_para(0:mpi_size-1) |
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| 83 | INTEGER,ALLOCATABLE :: kindex_loc(:) |
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| 84 | INTEGER :: offset |
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| 85 | INTEGER :: i |
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| 86 | |
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| 87 | |
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| 88 | last_point=0 |
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| 89 | |
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| 90 | CALL read_load_balance(nbp,nbp_loc_para) |
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| 91 | |
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| 92 | DO i=0,mpi_rank |
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| 93 | nbp_loc=nbp_loc_para(i) |
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| 94 | First_point=last_point+1 |
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| 95 | Last_point=last_point+nbp_loc |
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| 96 | ENDDO |
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| 97 | |
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| 98 | ALLOCATE(kindex_loc(nbp_loc)) |
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| 99 | DO i=1,nbp_loc |
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| 100 | kindex_loc(i)=kindex_glo(i+First_Point-1) |
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| 101 | ENDDO |
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| 102 | |
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| 103 | IF (mpi_rank==0) THEN |
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| 104 | offset=0 |
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| 105 | ELSE |
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| 106 | offset=kindex_glo(First_point-1)-MOD(kindex_glo(First_point-1),iim_g) |
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| 107 | ENDIF |
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| 108 | |
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| 109 | kindex_loc(:)=kindex_loc(:)-offset |
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| 110 | |
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| 111 | CALL Init_orchidee_data_para(nbp_loc,kindex_loc,offset,omp_size,omp_rank,MPI_COMM_ORCH) |
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| 112 | CALL Set_stdout_file('out_orchidee') |
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| 113 | CALL ipslnlf(new_number=numout) |
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| 114 | |
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| 115 | END SUBROUTINE Init_orchidee_data_para_driver |
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| 116 | |
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| 117 | |
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| 118 | !! ============================================================================================================================= |
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| 119 | !! SUBROUTINE: Init_orchidee_data_para |
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| 120 | !! |
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| 121 | !>\BRIEF Initialization of MPI and OpenMP parallelization. |
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| 122 | !! |
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| 123 | !! DESCRIPTION: Initialization of MPI and OpenMP parallelization. |
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| 124 | !! This subroutine is called from both the offline driver and from the initialization routine for the coupled mode. |
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| 125 | !! This routine will call the successively the initialization for omp and then for mpi. |
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| 126 | !! We define in this routine the variable "is_root_prc = is_mpi_root AND is_omp_root". |
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| 127 | !! |
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| 128 | !! \n |
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| 129 | !_ ============================================================================================================================== |
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| 130 | SUBROUTINE Init_orchidee_data_para(nbp,kindex,arg_offset,arg_omp_size,arg_omp_rank,COMM) |
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| 131 | |
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| 132 | IMPLICIT NONE |
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| 133 | INTEGER,INTENT(IN) :: nbp |
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| 134 | INTEGER,INTENT(IN) :: kindex(nbp) |
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| 135 | INTEGER,INTENT(IN) :: arg_offset |
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| 136 | INTEGER,INTENT(IN) :: arg_omp_size |
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| 137 | INTEGER,INTENT(IN) :: arg_omp_rank |
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| 138 | INTEGER,INTENT(IN) :: COMM |
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| 139 | |
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| 140 | INTEGER,SAVE :: arg_nbp_mpi |
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| 141 | INTEGER,ALLOCATABLE,SAVE :: kindex_mpi(:) |
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| 142 | LOGICAL :: last |
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| 143 | INTEGER :: mpi_size |
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| 144 | INTEGER :: mpi_rank |
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| 145 | INTEGER :: ierr |
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| 146 | |
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| 147 | #ifdef CPP_PARA |
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| 148 | CALL MPI_COMM_SIZE(COMM,mpi_size,ierr) |
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| 149 | CALL MPI_COMM_RANK(COMM,mpi_rank,ierr) |
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| 150 | #else |
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| 151 | mpi_rank=0 |
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| 152 | mpi_size=1 |
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| 153 | #endif |
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| 154 | |
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| 155 | offset=arg_offset |
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| 156 | last=.FALSE. |
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| 157 | IF (mpi_rank==mpi_size .AND. arg_omp_rank==arg_omp_size) last=.TRUE. |
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| 158 | CALL init_orchidee_omp_data(arg_omp_size,arg_omp_rank,nbp,kindex, offset,last) |
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| 159 | |
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| 160 | IF (is_omp_root) THEN |
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| 161 | arg_nbp_mpi=SUM(nbp_omp_para_nb(:)) |
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| 162 | ALLOCATE(kindex_mpi(arg_nbp_mpi)) |
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| 163 | ENDIF |
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| 164 | |
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| 165 | CALL barrier2_omp() |
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| 166 | kindex_mpi(nbp_omp_begin:nbp_omp_end)=kindex(:)+offset |
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| 167 | CALL barrier2_omp() |
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| 168 | |
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| 169 | IF (is_omp_root) THEN |
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| 170 | kindex_mpi(:)=kindex_mpi(:)-offset |
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| 171 | CALL init_orchidee_mpi_data(arg_nbp_mpi,kindex_mpi,offset,COMM) |
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| 172 | nbp_glo=SUM(nbp_mpi_para(:)) |
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| 173 | ENDIF |
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| 174 | CALL barrier2_omp() |
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| 175 | |
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| 176 | nbp_loc=nbp |
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| 177 | |
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| 178 | ! Define is_root_prc |
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| 179 | ! Note that this is already done in init_orchidee_para for the offline case but it is done here again for the coupled case. |
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| 180 | IF (is_mpi_root .AND. is_omp_root) THEN |
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| 181 | is_root_prc=.TRUE. |
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| 182 | ELSE |
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| 183 | is_root_prc=.FALSE. |
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| 184 | ENDIF |
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| 185 | |
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| 186 | CALL Test_orchidee_para |
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| 187 | |
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| 188 | END SUBROUTINE Init_orchidee_data_para |
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| 189 | |
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| 190 | !! ============================================================================================================================= |
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| 191 | !! SUBROUTINE: Set_stdout_file |
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| 192 | !! |
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| 193 | !>\BRIEF for each output file will give a unit number for the write function |
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| 194 | !! |
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| 195 | !! DESCRIPTION: for each output file will give a unit number for the write function |
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| 196 | !! |
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| 197 | !! \n |
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| 198 | !_ ============================================================================================================================== |
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| 199 | SUBROUTINE Set_stdout_file(filename) |
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| 200 | |
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| 201 | IMPLICIT NONE |
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| 202 | |
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| 203 | CHARACTER(len=*), INTENT(IN) :: filename |
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| 204 | CHARACTER(len=255) :: fileout |
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| 205 | CHARACTER(len=4) :: num_mpi |
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| 206 | CHARACTER(len=4) :: num_omp |
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| 207 | INTEGER,PARAMETER :: base_numout=100 |
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| 208 | INTEGER :: ierr |
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| 209 | |
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| 210 | IF (is_ok_mpi) THEN |
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| 211 | WRITE(num_mpi,'(I4.4)') mpi_rank |
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| 212 | ENDIF |
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| 213 | |
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| 214 | IF (is_ok_omp) THEN |
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| 215 | WRITE(num_omp,'(I4.4)') omp_rank |
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| 216 | ENDIF |
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| 217 | |
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| 218 | |
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| 219 | IF (is_ok_mpi .AND. is_ok_omp) THEN |
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| 220 | fileout=TRIM(filename)//'_'//num_mpi//'.'//num_omp |
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| 221 | numout=base_numout+omp_rank |
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| 222 | ELSE IF (is_ok_mpi .AND. (.NOT. is_ok_omp)) THEN |
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| 223 | fileout=TRIM(filename)//'_'//num_mpi |
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| 224 | numout=base_numout |
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| 225 | ELSE IF ((.NOT. is_ok_mpi) .AND. is_ok_omp) THEN |
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| 226 | fileout=TRIM(filename)//'_'//num_omp |
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| 227 | numout=base_numout+omp_rank |
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| 228 | ELSE |
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| 229 | fileout=TRIM(filename) |
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| 230 | numout=base_numout |
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| 231 | ENDIF |
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| 232 | !!$OMP CRITICAL |
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| 233 | ! WRITE(*,*) "Set_stdout_file (rank ",mpi_rank,omp_rank,"), id output :",numout |
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| 234 | !!$OMP END CRITICAL |
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| 235 | |
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| 236 | OPEN(UNIT=numout,FILE=TRIM(fileout),ACTION='write',STATUS='unknown',FORM='formatted',IOSTAT=ierr) |
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| 237 | IF (ierr /= 0) THEN |
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| 238 | #ifdef CPP_PARA |
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| 239 | CALL MPI_FINALIZE(ierr) |
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| 240 | #endif |
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| 241 | WRITE(*,*) "In Set_stdout_file : Erreur can't open file ", filename |
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| 242 | STOP 1 |
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| 243 | ENDIF |
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| 244 | |
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| 245 | !!$OMP CRITICAL |
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| 246 | ! WRITE(numout,*) "Set_stdout_file (rank ",mpi_rank,omp_rank,"), id output :",numout |
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| 247 | !!$OMP END CRITICAL |
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| 248 | |
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| 249 | CALL Init_numout_omp(numout) |
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| 250 | |
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| 251 | END SUBROUTINE Set_stdout_file |
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| 252 | |
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| 253 | |
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| 254 | !! ============================================================================================================================= |
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| 255 | !! SUBROUTINE: Test_orchidee_para |
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| 256 | !! |
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| 257 | !>\BRIEF |
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| 258 | !! |
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| 259 | !! DESCRIPTION: |
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| 260 | !! |
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| 261 | !! \n |
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| 262 | !_ ============================================================================================================================== |
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| 263 | SUBROUTINE Test_orchidee_para |
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| 264 | |
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| 265 | IMPLICIT NONE |
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| 266 | |
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| 267 | INTEGER,PARAMETER :: dimsize=3 |
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| 268 | REAL :: Array(nbp_loc,dimsize) |
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| 269 | REAL :: Array_glo(nbp_glo,dimsize) |
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| 270 | REAL :: Array_glo_tmp(nbp_glo,dimsize) |
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| 271 | REAL :: Array2D_loc(iim_g,jj_nb) |
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| 272 | REAL :: Array2D_glo(iim_g,jjm_g) |
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| 273 | REAL :: sum1,sum2,sum3 |
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| 274 | |
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| 275 | INTEGER :: i,j |
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| 276 | |
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| 277 | DO j=1,dimsize |
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| 278 | DO i=1,nbp_loc |
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| 279 | Array(i,j)=10*j+omp_rank+i*1000 |
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| 280 | ENDDO |
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| 281 | ENDDO |
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| 282 | |
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| 283 | CALL gather(Array,Array_glo) |
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| 284 | CALL bcast(Array_glo) |
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| 285 | CALL scatter(Array_glo,array) |
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| 286 | CALL gather(array,array_glo_tmp) |
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| 287 | CALL bcast(array_glo_tmp) |
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| 288 | ! WRITE(*,*) "1) Test parallelism (rank ",mpi_rank,omp_rank,"), Sould be 0 :",SUM(array_glo-array_glo_tmp) |
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| 289 | |
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| 290 | sum1=SUM(array) |
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| 291 | CALL reduce_sum(sum1,sum2) |
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| 292 | CALL bcast(sum2) |
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| 293 | sum3=SUM(array_glo) |
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| 294 | ! WRITE(*,*) "2) Test parallelism (rank ",mpi_rank,omp_rank,"), Sould be 0 :",sum3-sum2 |
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| 295 | |
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| 296 | IF (is_omp_root) THEN |
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| 297 | DO j=1,jjm_g |
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| 298 | DO i=1,iim_g |
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| 299 | Array2D_glo(i,j)=(j-1)*iim_g+i |
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| 300 | ENDDO |
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| 301 | ENDDO |
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| 302 | |
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| 303 | array2D_loc(:,:)=0 |
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| 304 | CALL scatter2D_mpi(array2D_glo,array2D_loc) |
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| 305 | array2D_glo(:,:)=0 |
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| 306 | CALL gather2D_mpi(array2D_loc,array2D_glo) |
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| 307 | CALL bcast_mpi(array2D_glo) |
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| 308 | sum1=SUM(array2D_glo) |
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| 309 | sum2=SUM(array2D_loc) |
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| 310 | CALL reduce_sum_mpi(sum2,sum3) |
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| 311 | CALL bcast_mpi(sum3) |
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| 312 | |
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| 313 | ! WRITE(*,*) "3) Test parallelism (rank ",mpi_rank,omp_rank,"), Sould be 0 :",sum3-sum1 |
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| 314 | ENDIF |
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| 315 | CALL barrier2_omp() |
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| 316 | |
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| 317 | END SUBROUTINE Test_orchidee_para |
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| 318 | |
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| 319 | END MODULE mod_orchidee_para |
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