| 1 | MODULE pmc_client |
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| 2 | |
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| 3 | !--------------------------------------------------------------------------------! |
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| 4 | ! This file is part of PALM. |
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| 5 | ! |
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| 6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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| 7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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| 8 | ! either version 3 of the License, or (at your option) any later version. |
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| 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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| 17 | ! Copyright 1997-2015 Leibniz Universitaet Hannover |
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| 18 | !--------------------------------------------------------------------------------! |
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| 19 | ! |
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| 20 | ! Current revisions: |
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| 21 | ! ------------------ |
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| 22 | ! change in client-server data transfer: server now gets data from client |
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| 23 | ! instead that client put's it to the server |
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| 24 | ! |
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| 25 | ! Former revisions: |
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| 26 | ! ----------------- |
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| 27 | ! $Id: pmc_client.f90 1786 2016-03-08 05:49:27Z raasch $ |
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| 28 | ! |
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| 29 | ! 1783 2016-03-06 18:36:17Z raasch |
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| 30 | ! Bugfix: wrong data-type in MPI_WIN_CREATE replaced |
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| 31 | ! |
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| 32 | ! 1779 2016-03-03 08:01:28Z raasch |
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| 33 | ! kind=dp replaced by wp, dim_order removed |
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| 34 | ! array management changed from linked list to sequential loop |
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| 35 | ! |
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| 36 | ! 1764 2016-02-28 12:45:19Z raasch |
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| 37 | ! cpp-statement added (nesting can only be used in parallel mode), |
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| 38 | ! all kinds given in PALM style |
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| 39 | ! |
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| 40 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 41 | ! Initial revision by K. Ketelsen |
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| 42 | ! |
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| 43 | ! Description: |
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| 44 | ! ------------ |
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| 45 | ! |
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| 46 | ! Client part of Palm Model Coupler |
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| 47 | !------------------------------------------------------------------------------! |
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| 48 | |
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| 49 | #if defined( __parallel ) |
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| 50 | |
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| 51 | use, intrinsic :: iso_c_binding |
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| 52 | |
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| 53 | #if defined( __lc ) |
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| 54 | USE MPI |
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| 55 | #else |
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| 56 | INCLUDE "mpif.h" |
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| 57 | #endif |
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| 58 | USE kinds |
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| 59 | USE PMC_general, ONLY: ClientDef, DA_NameDef, DA_Namelen, PMC_STATUS_OK, PMC_DA_NAME_ERR, PeDef, ArrayDef, & |
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| 60 | DA_Desclen, DA_Namelen, PMC_G_SetName, PMC_MAX_ARRAY |
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| 61 | USE PMC_handle_communicator, ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_server_comm |
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| 62 | USE PMC_MPI_wrapper, ONLY: PMC_Send_to_Server, PMC_Recv_from_Server, PMC_Time, & |
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| 63 | PMC_Bcast, PMC_Inter_Bcast, PMC_Alloc_mem |
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| 64 | IMPLICIT none |
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| 65 | PRIVATE |
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| 66 | SAVE |
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| 67 | |
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| 68 | Type(ClientDef) :: me |
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| 69 | |
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| 70 | INTEGER :: next_array_in_list = 0 |
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| 71 | INTEGER :: myIndex = 0 !Counter and unique number for Data Arrays |
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| 72 | |
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| 73 | ! INTERFACE section |
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| 74 | |
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| 75 | INTERFACE PMC_ClientInit |
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| 76 | MODULE procedure PMC_ClientInit |
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| 77 | END INTERFACE PMC_ClientInit |
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| 78 | |
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| 79 | INTERFACE PMC_Set_DataArray_Name |
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| 80 | MODULE procedure PMC_Set_DataArray_Name |
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| 81 | MODULE procedure PMC_Set_DataArray_Name_LastEntry |
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| 82 | END INTERFACE PMC_Set_DataArray_Name |
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| 83 | |
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| 84 | INTERFACE PMC_C_Get_2D_index_list |
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| 85 | MODULE procedure PMC_C_Get_2D_index_list |
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| 86 | END INTERFACE PMC_C_Get_2D_index_list |
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| 87 | |
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| 88 | INTERFACE PMC_C_clear_next_array_list |
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| 89 | MODULE procedure PMC_C_clear_next_array_list |
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| 90 | END INTERFACE PMC_C_clear_next_array_list |
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| 91 | |
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| 92 | INTERFACE PMC_C_GetNextArray |
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| 93 | MODULE procedure PMC_C_GetNextArray |
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| 94 | END INTERFACE PMC_C_GetNextArray |
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| 95 | |
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| 96 | INTERFACE PMC_C_Set_DataArray |
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| 97 | MODULE procedure PMC_C_Set_DataArray_2d |
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| 98 | MODULE procedure PMC_C_Set_DataArray_3d |
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| 99 | END INTERFACE PMC_C_Set_DataArray |
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| 100 | |
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| 101 | INTERFACE PMC_C_setInd_and_AllocMem |
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| 102 | MODULE procedure PMC_C_setInd_and_AllocMem |
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| 103 | END INTERFACE PMC_C_setInd_and_AllocMem |
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| 104 | |
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| 105 | INTERFACE PMC_C_GetBuffer |
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| 106 | MODULE procedure PMC_C_GetBuffer |
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| 107 | END INTERFACE PMC_C_GetBuffer |
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| 108 | |
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| 109 | INTERFACE PMC_C_PutBuffer |
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| 110 | MODULE procedure PMC_C_PutBuffer |
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| 111 | END INTERFACE PMC_C_PutBuffer |
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| 112 | |
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| 113 | ! Public section |
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| 114 | |
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| 115 | PUBLIC PMC_ClientInit , PMC_Set_DataArray_Name, PMC_C_Get_2D_index_list |
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| 116 | PUBLIC PMC_C_GetNextArray, PMC_C_Set_DataArray, PMC_C_clear_next_array_list |
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| 117 | PUBLIC PMC_C_setInd_and_AllocMem , PMC_C_GetBuffer, PMC_C_PutBuffer |
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| 118 | |
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| 119 | CONTAINS |
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| 120 | |
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| 121 | SUBROUTINE PMC_ClientInit |
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| 122 | IMPLICIT none |
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| 123 | |
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| 124 | INTEGER :: i |
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| 125 | INTEGER :: istat |
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| 126 | |
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| 127 | |
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| 128 | ! Tailor MPI environment |
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| 129 | |
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| 130 | me%model_comm = m_model_comm |
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| 131 | me%inter_comm = m_to_server_comm |
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| 132 | |
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| 133 | ! Get rank and size |
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| 134 | CALL MPI_Comm_rank (me%model_comm, me%model_rank, istat); |
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| 135 | CALL MPI_Comm_size (me%model_comm, me%model_npes, istat); |
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| 136 | CALL MPI_Comm_remote_size (me%inter_comm, me%inter_npes, istat); |
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| 137 | |
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| 138 | ! intra communicater is used for MPI_Get |
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| 139 | CALL MPI_Intercomm_merge (me%inter_comm, .true., me%intra_comm, istat); |
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| 140 | CALL MPI_Comm_rank (me%intra_comm, me%intra_rank, istat); |
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| 141 | ALLOCATE (me%PEs(me%inter_npes)) |
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| 142 | |
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| 143 | ! |
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| 144 | !-- Allocate for all Server PEs an array of TYPE ArrayDef to store information of transfer array |
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| 145 | do i=1,me%inter_npes |
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| 146 | ALLOCATE(me%PEs(i)%array_list(PMC_MAX_ARRAY)) |
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| 147 | end do |
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| 148 | |
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| 149 | if(me%model_rank == 0) write(0,'(a,5i6)') 'PMC_ClientInit ',me%model_rank,me%model_npes,me%inter_npes,me%intra_rank |
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| 150 | |
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| 151 | return |
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| 152 | END SUBROUTINE PMC_ClientInit |
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| 153 | |
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| 154 | SUBROUTINE PMC_Set_DataArray_Name (ServerArrayDesc, ServerArrayName, ClientArrayDesc, ClientArrayName, istat) |
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| 155 | IMPLICIT none |
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| 156 | character(len=*),INTENT(IN) :: ServerArrayName |
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| 157 | character(len=*),INTENT(IN) :: ServerArrayDesc |
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| 158 | character(len=*),INTENT(IN) :: ClientArrayName |
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| 159 | character(len=*),INTENT(IN) :: ClientArrayDesc |
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| 160 | INTEGER,INTENT(OUT) :: istat |
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| 161 | |
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| 162 | !-- local variables |
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| 163 | type(DA_NameDef) :: myName |
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| 164 | INTEGER :: myPe |
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| 165 | INTEGER :: my_AddiArray=0 |
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| 166 | |
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| 167 | istat = PMC_STATUS_OK |
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| 168 | if(len(trim(ServerArrayName)) > DA_Namelen .or. & |
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| 169 | len(trim(ClientArrayName)) > DA_Namelen) then !Name too long |
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| 170 | istat = PMC_DA_NAME_ERR |
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| 171 | end if |
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| 172 | |
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| 173 | if(m_model_rank == 0) then |
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| 174 | myIndex = myIndex+1 |
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| 175 | myName%couple_index = myIndex |
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| 176 | myName%ServerDesc = trim(ServerArrayDesc) |
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| 177 | myName%NameOnServer = trim(ServerArrayName) |
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| 178 | myName%ClientDesc = trim(ClientArrayDesc) |
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| 179 | myName%NameOnClient = trim(ClientArrayName) |
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| 180 | end if |
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| 181 | |
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| 182 | ! Broadcat to all Client PEs |
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| 183 | |
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| 184 | CALL PMC_Bcast ( myName%couple_index, 0, comm=m_model_comm) |
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| 185 | CALL PMC_Bcast ( myName%ServerDesc, 0, comm=m_model_comm) |
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| 186 | CALL PMC_Bcast ( myName%NameOnServer, 0, comm=m_model_comm) |
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| 187 | CALL PMC_Bcast ( myName%ClientDesc, 0, comm=m_model_comm) |
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| 188 | CALL PMC_Bcast ( myName%NameOnClient, 0, comm=m_model_comm) |
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| 189 | |
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| 190 | ! Broadcat to all Server PEs |
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| 191 | |
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| 192 | if(m_model_rank == 0) then |
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| 193 | myPE = MPI_ROOT |
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| 194 | else |
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| 195 | myPE = MPI_PROC_NULL |
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| 196 | endif |
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| 197 | CALL PMC_Bcast ( myName%couple_index, myPE, comm=m_to_server_comm) |
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| 198 | CALL PMC_Bcast ( myName%ServerDesc, myPE, comm=m_to_server_comm) |
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| 199 | CALL PMC_Bcast ( myName%NameOnServer, myPE, comm=m_to_server_comm) |
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| 200 | CALL PMC_Bcast ( myName%ClientDesc, myPE, comm=m_to_server_comm) |
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| 201 | CALL PMC_Bcast ( myName%NameOnClient, myPE, comm=m_to_server_comm) |
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| 202 | |
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| 203 | CALL PMC_G_SetName (me, myName%couple_index, myName%NameOnClient) |
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| 204 | |
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| 205 | return |
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| 206 | END SUBROUTINE PMC_Set_DataArray_Name |
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| 207 | |
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| 208 | SUBROUTINE PMC_Set_DataArray_Name_LastEntry (LastEntry) |
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| 209 | IMPLICIT none |
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| 210 | LOGICAL,INTENT(IN),optional :: LastEntry |
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| 211 | |
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| 212 | !-- local variables |
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| 213 | type(DA_NameDef) :: myName |
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| 214 | INTEGER :: myPe |
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| 215 | |
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| 216 | myName%couple_index = -1 |
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| 217 | |
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| 218 | if(m_model_rank == 0) then |
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| 219 | myPE = MPI_ROOT |
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| 220 | else |
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| 221 | myPE = MPI_PROC_NULL |
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| 222 | endif |
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| 223 | CALL PMC_Bcast ( myName%couple_index, myPE, comm=m_to_server_comm) |
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| 224 | |
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| 225 | return |
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| 226 | END SUBROUTINE PMC_Set_DataArray_Name_LastEntry |
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| 227 | |
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| 228 | SUBROUTINE PMC_C_Get_2D_index_list |
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| 229 | IMPLICIT none |
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| 230 | |
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| 231 | INTEGER :: i,j,i2,nr,ierr |
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| 232 | INTEGER :: dummy |
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| 233 | INTEGER :: indWin !: MPI window object |
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| 234 | INTEGER :: indWin2 !: MPI window object |
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| 235 | INTEGER(KIND=MPI_ADDRESS_KIND) :: win_size !: Size of MPI window 1 (in bytes) |
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| 236 | INTEGER(KIND=MPI_ADDRESS_KIND) :: disp !: Displacement Unit (Integer = 4, floating poit = 8 |
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| 237 | INTEGER,DIMENSION(me%inter_npes*2) :: NrEle !: Number of Elements of a horizontal slice |
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| 238 | TYPE(PeDef),POINTER :: aPE !: Pointer to PeDef structure |
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| 239 | INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize !: Size of MPI window 2 (in bytes) |
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| 240 | INTEGER,DIMENSION(:),POINTER :: myInd |
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| 241 | |
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| 242 | ! CALL PMC_C_CGet_Rem_index_list |
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| 243 | |
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| 244 | win_size = c_sizeof(dummy) |
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| 245 | CALL MPI_Win_create (dummy, win_size, iwp, MPI_INFO_NULL, me%intra_comm, indWin, ierr); |
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| 246 | CALL MPI_Win_fence (0, indWin, ierr) ! Open Window on Server side |
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| 247 | CALL MPI_Win_fence (0, indWin, ierr) ! Close Window on Server Side and opem on Client side |
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| 248 | |
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| 249 | do i=1,me%inter_npes |
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| 250 | disp = me%model_rank*2 |
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| 251 | CALL MPI_Get (NrEle((i-1)*2+1),2,MPI_INTEGER,i-1,disp,2,MPI_INTEGER,indWin, ierr) |
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| 252 | end do |
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| 253 | CALL MPI_Win_fence (0, indWin, ierr) ! MPI_get is Non-blocking -> data in NrEle is not available until MPI_fence CALL |
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| 254 | |
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| 255 | WinSize = 0 |
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| 256 | do i=1,me%inter_npes !Allocate memory for index array |
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| 257 | aPE => me%PEs(i) |
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| 258 | i2 = (i-1)*2+1 |
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| 259 | nr = NrEle(i2+1) |
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| 260 | if(nr > 0) then |
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| 261 | ALLOCATE(aPE%locInd(nr)) |
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| 262 | else |
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| 263 | NULLIFY (aPE%locInd) |
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| 264 | endif |
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| 265 | WinSize = max(nr,WinSize) !Maximum window size |
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| 266 | end do |
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| 267 | |
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| 268 | ALLOCATE(myInd(2*WinSize)) |
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| 269 | WinSize = 1 |
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| 270 | |
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| 271 | ! local Buffer used in MPI_Get can but must not be inside the MPI Window |
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| 272 | ! Here, we use a dummy for MPI Window because the server PEs do not access the RMA window via MPI_get or MPI_Put |
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| 273 | |
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| 274 | CALL MPI_Win_create (dummy, WinSize, iwp, MPI_INFO_NULL, me%intra_comm, indWin2, ierr); |
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| 275 | |
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| 276 | CALL MPI_Win_fence (0, indWin2, ierr) ! MPI_get is Non-blocking -> data in NrEle is not available until MPI_fence CALL |
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| 277 | CALL MPI_Win_fence (0, indWin2, ierr) ! MPI_get is Non-blocking -> data in NrEle is not available until MPI_fence CALL |
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| 278 | |
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| 279 | do i=1,me%inter_npes |
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| 280 | aPE => me%PEs(i) |
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| 281 | nr = NrEle(i*2) |
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| 282 | if(nr > 0 ) then |
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| 283 | disp = NrEle(2*(i-1)+1) |
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| 284 | CALL MPI_Win_lock (MPI_LOCK_SHARED , i-1, 0, indWin2, ierr) |
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| 285 | CALL MPI_Get (myInd,2*nr,MPI_INTEGER,i-1,disp,2*nr,MPI_INTEGER,indWin2, ierr) |
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| 286 | CALL MPI_Win_unlock (i-1, indWin2, ierr) |
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| 287 | do j=1,nr |
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| 288 | aPE%locInd(j)%i = myInd(2*j-1) |
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| 289 | aPE%locInd(j)%j = myInd(2*j) |
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| 290 | end do |
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| 291 | aPE%NrEle = nr |
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| 292 | else |
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| 293 | aPE%NrEle = -1 |
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| 294 | end if |
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| 295 | end do |
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| 296 | |
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| 297 | CALL MPI_Barrier(me%intra_comm, ierr) ! Dont know why, but this barrier is necessary before we can free the windows |
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| 298 | |
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| 299 | CALL MPI_Win_free(indWin, ierr); |
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| 300 | CALL MPI_Win_free(indWin2, ierr); |
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| 301 | DEALLOCATE (myInd) |
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| 302 | |
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| 303 | return |
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| 304 | END SUBROUTINE PMC_C_Get_2D_index_list |
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| 305 | |
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| 306 | SUBROUTINE PMC_C_clear_next_array_list |
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| 307 | IMPLICIT none |
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| 308 | |
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| 309 | next_array_in_list = 0 |
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| 310 | |
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| 311 | return |
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| 312 | END SUBROUTINE PMC_C_clear_next_array_list |
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| 313 | |
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| 314 | ! List handling is still required to get minimal interaction with pmc_interface |
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| 315 | LOGICAL function PMC_C_GetNextArray (myName) |
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| 316 | character(len=*),INTENT(OUT) :: myName |
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| 317 | |
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| 318 | !-- local variables |
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| 319 | TYPE(PeDef),POINTER :: aPE |
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| 320 | TYPE(ArrayDef),POINTER :: ar |
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| 321 | |
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| 322 | next_array_in_list = next_array_in_list+1 |
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| 323 | |
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| 324 | !-- Array Names are the same on all client PE, so take first PE to get the name |
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| 325 | aPE => me%PEs(1) |
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| 326 | |
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| 327 | if(next_array_in_list > aPE%Nr_arrays) then |
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| 328 | PMC_C_GetNextArray = .false. !all arrays done |
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| 329 | return |
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| 330 | end if |
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| 331 | |
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| 332 | ar => aPE%array_list(next_array_in_list) |
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| 333 | |
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| 334 | myName = ar%name |
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| 335 | |
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| 336 | PMC_C_GetNextArray = .true. ! Return true if legal array |
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| 337 | return |
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| 338 | END function PMC_C_GetNextArray |
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| 339 | |
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| 340 | SUBROUTINE PMC_C_Set_DataArray_2d (array) |
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| 341 | |
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| 342 | IMPLICIT none |
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| 343 | |
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| 344 | REAL(wp), INTENT(IN) ,DIMENSION(:,:) :: array |
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| 345 | |
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| 346 | INTEGER :: NrDims |
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| 347 | INTEGER,DIMENSION (4) :: dims |
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| 348 | TYPE(c_ptr) :: array_adr |
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| 349 | INTEGER :: i |
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| 350 | TYPE(PeDef),POINTER :: aPE |
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| 351 | TYPE(ArrayDef),POINTER :: ar |
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| 352 | |
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| 353 | |
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| 354 | dims = 1 |
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| 355 | |
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| 356 | NrDims = 2 |
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| 357 | dims(1) = size(array,1) |
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| 358 | dims(2) = size(array,2) |
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| 359 | |
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| 360 | array_adr = c_loc(array) |
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| 361 | |
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| 362 | do i=1,me%inter_npes |
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| 363 | aPE => me%PEs(i) |
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| 364 | ar => aPE%array_list(next_array_in_list) |
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| 365 | ar%NrDims = NrDims |
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| 366 | ar%A_dim = dims |
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| 367 | ar%data = array_adr |
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| 368 | end do |
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| 369 | |
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| 370 | return |
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| 371 | END SUBROUTINE PMC_C_Set_DataArray_2d |
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| 372 | |
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| 373 | SUBROUTINE PMC_C_Set_DataArray_3d (array) |
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| 374 | |
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| 375 | IMPLICIT none |
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| 376 | |
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| 377 | REAL(wp),INTENT(IN),DIMENSION(:,:,:) :: array |
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| 378 | |
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| 379 | INTEGER :: NrDims |
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| 380 | INTEGER,DIMENSION (4) :: dims |
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| 381 | TYPE(c_ptr) :: array_adr |
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| 382 | INTEGER :: i |
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| 383 | TYPE(PeDef),POINTER :: aPE |
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| 384 | TYPE(ArrayDef),POINTER :: ar |
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| 385 | |
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| 386 | dims = 1 |
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| 387 | |
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| 388 | NrDims = 3 |
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| 389 | dims(1) = size(array,1) |
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| 390 | dims(2) = size(array,2) |
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| 391 | dims(3) = size(array,3) |
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| 392 | |
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| 393 | array_adr = c_loc(array) |
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| 394 | |
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| 395 | do i=1,me%inter_npes |
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| 396 | aPE => me%PEs(i) |
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| 397 | ar => aPE%array_list(next_array_in_list) !actual array is last array in list |
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| 398 | ar%NrDims = NrDims |
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| 399 | ar%A_dim = dims |
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| 400 | ar%data = array_adr |
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| 401 | end do |
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| 402 | |
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| 403 | return |
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| 404 | END SUBROUTINE PMC_C_Set_DataArray_3d |
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| 405 | |
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| 406 | SUBROUTINE PMC_C_setInd_and_AllocMem |
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| 407 | |
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| 408 | IMPLICIT none |
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| 409 | |
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| 410 | !-- naming convention: appending _sc -> server to client transfer |
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| 411 | !-- _cs -> client to server transfer |
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| 412 | !-- Recv -> server to client transfer |
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| 413 | !-- Send -> client to server transfer |
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| 414 | |
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| 415 | INTEGER :: i, istat, ierr, j |
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| 416 | INTEGER,PARAMETER :: NoINdex=-1 |
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| 417 | INTEGER :: rcount |
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| 418 | INTEGER :: arlen, myIndex, tag |
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| 419 | INTEGER(idp) :: bufsize ! Size of MPI data Window |
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| 420 | TYPE(PeDef),POINTER :: aPE |
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| 421 | TYPE(ArrayDef),POINTER :: ar |
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| 422 | INTEGER,DIMENSION(1024) :: req |
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| 423 | character(len=DA_Namelen) :: myName |
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| 424 | Type(c_ptr) :: base_ptr |
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| 425 | REAL(kind=wp),DIMENSION(:),POINTER,save :: base_array_sc !Base array |
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| 426 | REAL(kind=wp),DIMENSION(:),POINTER,save :: base_array_cs !Base array |
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| 427 | INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize |
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| 428 | |
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| 429 | myIndex = 0 |
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| 430 | bufsize = 8 |
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| 431 | |
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| 432 | !-- Server to client direction |
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| 433 | |
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| 434 | !-- First stride, Compute size and set index |
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| 435 | |
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| 436 | do i=1,me%inter_npes |
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| 437 | aPE => me%PEs(i) |
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| 438 | tag = 200 |
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| 439 | |
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| 440 | do j=1,aPE%Nr_arrays |
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| 441 | ar => aPE%array_list(j) |
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| 442 | |
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| 443 | ! Receive Index from client |
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| 444 | tag = tag+1 |
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| 445 | CALL MPI_Recv (myIndex, 1, MPI_INTEGER, i-1, tag, me%inter_comm, MPI_STATUS_IGNORE, ierr) |
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| 446 | |
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| 447 | if(ar%NrDims == 3) then |
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| 448 | bufsize = max(bufsize,ar%A_dim(1)*ar%A_dim(2)*ar%A_dim(3)) ! determine max, because client buffer is allocated only once |
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| 449 | else |
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| 450 | bufsize = max(bufsize,ar%A_dim(1)*ar%A_dim(2)) |
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| 451 | end if |
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| 452 | ar%RecvIndex = myIndex |
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| 453 | |
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| 454 | end do |
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| 455 | end do |
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| 456 | |
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| 457 | |
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| 458 | !-- Create RMA (One Sided Communication) data buffer |
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| 459 | !-- The buffer for MPI_Get can be PE local, i.e. it can but must not be part of the MPI RMA window |
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| 460 | |
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| 461 | CALL PMC_Alloc_mem (base_array_sc, bufsize, base_ptr) |
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| 462 | me%TotalBufferSize = bufsize*wp ! Total buffer size in Byte |
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| 463 | |
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| 464 | !-- Second stride, Set Buffer pointer |
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| 465 | |
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| 466 | do i=1,me%inter_npes |
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| 467 | aPE => me%PEs(i) |
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| 468 | |
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| 469 | do j=1,aPE%Nr_arrays |
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| 470 | ar => aPE%array_list(j) |
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| 471 | ar%RecvBuf = base_ptr |
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| 472 | end do |
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| 473 | end do |
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| 474 | |
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| 475 | !-- Client to server direction |
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| 476 | |
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| 477 | myIndex = 1 |
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| 478 | rCount = 0 |
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| 479 | bufsize = 8 |
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| 480 | |
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| 481 | do i=1,me%inter_npes |
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| 482 | aPE => me%PEs(i) |
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| 483 | tag = 300 |
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| 484 | do j=1,aPE%Nr_arrays |
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| 485 | ar => aPE%array_list(j) |
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| 486 | if(ar%NrDims == 2) then |
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| 487 | arlen = aPE%NrEle ! 2D |
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| 488 | else if(ar%NrDims == 3) then |
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| 489 | arlen = aPE%NrEle*ar%A_dim(1) ! 3D |
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| 490 | end if |
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| 491 | |
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| 492 | tag = tag+1 |
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| 493 | rCount = rCount+1 |
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| 494 | if(aPE%NrEle > 0) then |
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| 495 | CALL MPI_Isend (myIndex, 1, MPI_INTEGER, i-1, tag, me%inter_comm, req(rCount),ierr) |
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| 496 | ar%SendIndex = myIndex |
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| 497 | else |
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| 498 | CALL MPI_Isend (NoIndex, 1, MPI_INTEGER, i-1, tag, me%inter_comm, req(rCount),ierr) |
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| 499 | ar%SendIndex = NoIndex |
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| 500 | end if |
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| 501 | |
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| 502 | if(rCount == 1024) then ! Maximum of 1024 outstanding requests |
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| 503 | CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr) |
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| 504 | rCount = 0; |
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| 505 | end if |
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| 506 | |
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| 507 | if(aPE%NrEle > 0) then |
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| 508 | ar%SendSize = arlen |
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| 509 | myIndex = myIndex+arlen |
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| 510 | bufsize = bufsize+arlen |
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| 511 | end if |
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| 512 | end do |
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| 513 | if(rCount > 0) then ! Wait for all send completed |
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| 514 | CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr) |
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| 515 | end if |
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| 516 | end do |
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| 517 | |
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| 518 | !-- Create RMA (One Sided Communication) window for data buffer client to server transfer |
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| 519 | !-- The buffer of MPI_Get (counter part of transfer) can be PE-local, i.e. it can but must not be part of the MPI RMA window |
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| 520 | !-- Only one RMA window is required to prepare the data for server -> client transfer on the server side and |
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| 521 | !-- for client -> server transfer on the client side |
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| 522 | |
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| 523 | CALL PMC_Alloc_mem (base_array_cs, bufsize) |
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| 524 | me%TotalBufferSize = bufsize*wp !Total buffer size in Byte |
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| 525 | |
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| 526 | WinSize = me%TotalBufferSize |
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| 527 | CALL MPI_Win_create (base_array_cs, WinSize, wp, MPI_INFO_NULL, me%intra_comm, me%win_server_client, ierr); |
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| 528 | CALL MPI_Win_fence (0, me%win_server_client, ierr); ! Open Window to set data |
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| 529 | CALL MPI_Barrier(me%intra_comm, ierr) |
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| 530 | |
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| 531 | !-- Second stride, Set Buffer pointer |
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| 532 | |
|---|
| 533 | do i=1,me%inter_npes |
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| 534 | aPE => me%PEs(i) |
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| 535 | |
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| 536 | do j=1,aPE%Nr_arrays |
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| 537 | ar => aPE%array_list(j) |
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| 538 | if(aPE%NrEle > 0) then |
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| 539 | ar%SendBuf = c_loc(base_array_cs(ar%SendIndex)) |
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| 540 | if(ar%SendIndex+ar%SendSize > bufsize) then |
|---|
| 541 | write(0,'(a,i4,4i7,1x,a)') 'Client Buffer too small ',i,ar%SendIndex,ar%SendSize,ar%SendIndex+ar%SendSize,bufsize,trim(ar%name) |
|---|
| 542 | CALL MPI_Abort (MPI_COMM_WORLD, istat, ierr) |
|---|
| 543 | end if |
|---|
| 544 | end if |
|---|
| 545 | end do |
|---|
| 546 | end do |
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| 547 | |
|---|
| 548 | return |
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| 549 | END SUBROUTINE PMC_C_setInd_and_AllocMem |
|---|
| 550 | |
|---|
| 551 | SUBROUTINE PMC_C_GetBuffer (WaitTime) |
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| 552 | |
|---|
| 553 | IMPLICIT none |
|---|
| 554 | |
|---|
| 555 | REAL(wp), INTENT(OUT), optional :: WaitTime |
|---|
| 556 | |
|---|
| 557 | !-- local variables |
|---|
| 558 | INTEGER :: ip, ij, ierr, j |
|---|
| 559 | INTEGER :: nr ! Number of Elements to getb from server |
|---|
| 560 | INTEGER :: myIndex |
|---|
| 561 | REAL(wp) :: t1,t2 |
|---|
| 562 | TYPE(PeDef),POINTER :: aPE |
|---|
| 563 | TYPE(ArrayDef),POINTER :: ar |
|---|
| 564 | INTEGER,DIMENSION(1) :: buf_shape |
|---|
| 565 | REAL(wp),POINTER,DIMENSION(:) :: buf |
|---|
| 566 | REAL(wp),POINTER,DIMENSION(:,:) :: data_2d |
|---|
| 567 | REAL(wp),POINTER,DIMENSION(:,:,:) :: data_3d |
|---|
| 568 | character(len=DA_Namelen) :: myName |
|---|
| 569 | INTEGER(kind=MPI_ADDRESS_KIND) :: target_disp |
|---|
| 570 | |
|---|
| 571 | t1 = PMC_Time() |
|---|
| 572 | CALL MPI_Barrier(me%intra_comm, ierr) ! Wait for server to fill buffer |
|---|
| 573 | t2 = PMC_Time()-t1 |
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| 574 | if(present(WaitTime)) WaitTime = t2 |
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| 575 | |
|---|
| 576 | CALL MPI_Barrier(me%intra_comm, ierr) ! Wait for buffer is filled |
|---|
| 577 | |
|---|
| 578 | do ip=1,me%inter_npes |
|---|
| 579 | aPE => me%PEs(ip) |
|---|
| 580 | |
|---|
| 581 | do j=1,aPE%Nr_arrays |
|---|
| 582 | ar => aPE%array_list(j) |
|---|
| 583 | if(ar%NrDims == 2) then |
|---|
| 584 | nr = aPE%NrEle |
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| 585 | else if(ar%NrDims == 3) then |
|---|
| 586 | nr = aPE%NrEle*ar%A_dim(1) |
|---|
| 587 | end if |
|---|
| 588 | |
|---|
| 589 | buf_shape(1) = nr |
|---|
| 590 | CALL c_f_pointer(ar%RecvBuf, buf, buf_shape) |
|---|
| 591 | ! |
|---|
| 592 | !-- MPI passive target RMA |
|---|
| 593 | if(nr > 0) then |
|---|
| 594 | target_disp = (ar%RecvIndex-1) |
|---|
| 595 | CALL MPI_Win_lock (MPI_LOCK_SHARED , ip-1, 0, me%win_server_client, ierr) |
|---|
| 596 | CALL MPI_Get (buf, nr, MPI_REAL, ip-1, target_disp, nr, MPI_REAL, me%win_server_client, ierr) |
|---|
| 597 | CALL MPI_Win_unlock (ip-1, me%win_server_client, ierr) |
|---|
| 598 | end if |
|---|
| 599 | |
|---|
| 600 | myIndex = 1 |
|---|
| 601 | if(ar%NrDims == 2) then |
|---|
| 602 | |
|---|
| 603 | CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2)) |
|---|
| 604 | do ij=1,aPE%NrEle |
|---|
| 605 | data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex) |
|---|
| 606 | myIndex = myIndex+1 |
|---|
| 607 | end do |
|---|
| 608 | else if(ar%NrDims == 3) then |
|---|
| 609 | CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3)) |
|---|
| 610 | do ij=1,aPE%NrEle |
|---|
| 611 | data_3d(:,aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex:myIndex+ar%A_dim(1)-1) |
|---|
| 612 | myIndex = myIndex+ar%A_dim(1) |
|---|
| 613 | end do |
|---|
| 614 | end if |
|---|
| 615 | |
|---|
| 616 | end do |
|---|
| 617 | end do |
|---|
| 618 | return |
|---|
| 619 | END SUBROUTINE PMC_C_GetBuffer |
|---|
| 620 | |
|---|
| 621 | SUBROUTINE PMC_C_PutBuffer (WaitTime) |
|---|
| 622 | |
|---|
| 623 | IMPLICIT none |
|---|
| 624 | |
|---|
| 625 | REAL(wp), INTENT(OUT), optional :: WaitTime |
|---|
| 626 | |
|---|
| 627 | !-- local variables |
|---|
| 628 | INTEGER :: ip, ij, ierr, j |
|---|
| 629 | INTEGER :: nr ! Number of Elements to getb from server |
|---|
| 630 | INTEGER :: myIndex |
|---|
| 631 | REAL(wp) :: t1,t2 |
|---|
| 632 | TYPE(PeDef),POINTER :: aPE |
|---|
| 633 | TYPE(ArrayDef),POINTER :: ar |
|---|
| 634 | INTEGER,DIMENSION(1) :: buf_shape |
|---|
| 635 | REAL(wp),POINTER,DIMENSION(:) :: buf |
|---|
| 636 | REAL(wp),POINTER,DIMENSION(:,:) :: data_2d |
|---|
| 637 | REAL(wp),POINTER,DIMENSION(:,:,:) :: data_3d |
|---|
| 638 | character(len=DA_Namelen) :: myName |
|---|
| 639 | INTEGER(kind=MPI_ADDRESS_KIND) :: target_disp |
|---|
| 640 | |
|---|
| 641 | t1 = PMC_Time() |
|---|
| 642 | CALL MPI_Barrier(me%intra_comm, ierr) ! Wait for empty buffer |
|---|
| 643 | t2 = PMC_Time() |
|---|
| 644 | if(present(WaitTime)) WaitTime = t2-t1 |
|---|
| 645 | |
|---|
| 646 | do ip=1,me%inter_npes |
|---|
| 647 | aPE => me%PEs(ip) |
|---|
| 648 | |
|---|
| 649 | do j=1,aPE%Nr_arrays |
|---|
| 650 | ar => aPE%array_list(j) |
|---|
| 651 | myIndex=1 |
|---|
| 652 | if(ar%NrDims == 2) then |
|---|
| 653 | buf_shape(1) = aPE%NrEle |
|---|
| 654 | CALL c_f_pointer(ar%SendBuf, buf, buf_shape) |
|---|
| 655 | CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2)) |
|---|
| 656 | do ij=1,aPE%NrEle |
|---|
| 657 | buf(myIndex) = data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) |
|---|
| 658 | myIndex = myIndex+1 |
|---|
| 659 | end do |
|---|
| 660 | else if(ar%NrDims == 3) then |
|---|
| 661 | buf_shape(1) = aPE%NrEle*ar%A_dim(1) |
|---|
| 662 | CALL c_f_pointer(ar%SendBuf, buf, buf_shape) |
|---|
| 663 | CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3)) |
|---|
| 664 | do ij=1,aPE%NrEle |
|---|
| 665 | buf(myIndex:myIndex+ar%A_dim(1)-1) = data_3d(:,aPE%locInd(ij)%j,aPE%locInd(ij)%i) |
|---|
| 666 | myIndex = myIndex+ar%A_dim(1) |
|---|
| 667 | end do |
|---|
| 668 | end if |
|---|
| 669 | end do |
|---|
| 670 | end do |
|---|
| 671 | |
|---|
| 672 | |
|---|
| 673 | ! CALL MPI_Win_fence (0, me%win_server_client, ierr) ! Fence might do it, test later |
|---|
| 674 | CALL MPI_Barrier(me%intra_comm, ierr) ! buffer is filled |
|---|
| 675 | |
|---|
| 676 | return |
|---|
| 677 | END SUBROUTINE PMC_C_PutBuffer |
|---|
| 678 | |
|---|
| 679 | #endif |
|---|
| 680 | END MODULE pmc_client |
|---|
