| 1 | MODULE pmc_server |
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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 | ! |
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| 23 | ! |
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| 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: pmc_server.f90 1809 2016-04-05 20:13:28Z raasch $ |
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| 27 | ! |
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| 28 | ! 1808 2016-04-05 19:44:00Z raasch |
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| 29 | ! MPI module used by default on all machines |
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| 30 | ! |
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| 31 | ! 1797 2016-03-21 16:50:28Z raasch |
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| 32 | ! introduction of different datatransfer modes |
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| 33 | ! |
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| 34 | ! 1791 2016-03-11 10:41:25Z raasch |
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| 35 | ! Debug write-statements commented out |
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| 36 | ! |
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| 37 | ! 1786 2016-03-08 05:49:27Z raasch |
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| 38 | ! change in client-server data transfer: server now gets data from client |
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| 39 | ! instead that client put's it to the server |
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| 40 | ! |
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| 41 | ! 1779 2016-03-03 08:01:28Z raasch |
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| 42 | ! kind=dp replaced by wp, |
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| 43 | ! error messages removed or changed to PALM style, dim_order removed |
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| 44 | ! array management changed from linked list to sequential loop |
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| 45 | ! |
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| 46 | ! 1766 2016-02-29 08:37:15Z raasch |
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| 47 | ! modifications to allow for using PALM's pointer version |
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| 48 | ! +new routine pmc_s_set_active_data_array |
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| 49 | ! |
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| 50 | ! 1764 2016-02-28 12:45:19Z raasch |
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| 51 | ! cpp-statement added (nesting can only be used in parallel mode) |
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| 52 | ! |
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| 53 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 54 | ! Initial revision by K. Ketelsen |
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| 55 | ! |
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| 56 | ! Description: |
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| 57 | ! ------------ |
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| 58 | ! |
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| 59 | ! Server part of Palm Model Coupler |
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| 60 | !------------------------------------------------------------------------------! |
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| 61 | |
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| 62 | #if defined( __parallel ) |
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| 63 | use, intrinsic :: iso_c_binding |
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| 64 | |
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| 65 | #if defined( __mpifh ) |
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| 66 | INCLUDE "mpif.h" |
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| 67 | #else |
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| 68 | USE MPI |
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| 69 | #endif |
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| 70 | USE kinds |
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| 71 | USE PMC_general, ONLY: ClientDef, PMC_MAX_MODELL,PMC_sort, DA_NameDef, DA_Desclen, DA_Namelen, & |
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| 72 | PMC_G_SetName, PeDef, ArrayDef, PMC_MAX_ARRAY |
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| 73 | USE PMC_handle_communicator, ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_client_comm, & |
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| 74 | PMC_Server_for_Client, m_world_rank |
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| 75 | USE PMC_MPI_wrapper, ONLY: PMC_Send_to_Client, PMC_Recv_from_Client, PMC_Bcast, PMC_Inter_Bcast, & |
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| 76 | PMC_Alloc_mem, PMC_Time |
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| 77 | |
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| 78 | IMPLICIT none |
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| 79 | PRIVATE |
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| 80 | SAVE |
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| 81 | |
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| 82 | TYPE ClientIndexDef |
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| 83 | INTEGER :: NrPoints |
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| 84 | INTEGER,DIMENSION(:,:),allocatable :: index_list_2d |
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| 85 | END TYPE ClientIndexDef |
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| 86 | |
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| 87 | TYPE(ClientDef),DIMENSION(PMC_MAX_MODELL) :: Clients |
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| 88 | TYPE(ClientIndexDef),DIMENSION(PMC_MAX_MODELL) :: indClients |
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| 89 | |
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| 90 | INTEGER :: next_array_in_list = 0 |
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| 91 | |
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| 92 | PUBLIC PMC_Server_for_Client |
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| 93 | |
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| 94 | INTERFACE PMC_ServerInit |
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| 95 | MODULE procedure PMC_ServerInit |
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| 96 | END INTERFACE PMC_ServerInit |
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| 97 | |
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| 98 | INTERFACE PMC_S_Set_2D_index_list |
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| 99 | MODULE procedure PMC_S_Set_2D_index_list |
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| 100 | END INTERFACE PMC_S_Set_2D_index_list |
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| 101 | |
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| 102 | INTERFACE PMC_S_clear_next_array_list |
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| 103 | MODULE procedure PMC_S_clear_next_array_list |
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| 104 | END INTERFACE PMC_S_clear_next_array_list |
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| 105 | |
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| 106 | INTERFACE PMC_S_GetNextArray |
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| 107 | MODULE procedure PMC_S_GetNextArray |
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| 108 | END INTERFACE PMC_S_GetNextArray |
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| 109 | |
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| 110 | INTERFACE PMC_S_Set_DataArray |
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| 111 | MODULE procedure PMC_S_Set_DataArray_2d |
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| 112 | MODULE procedure PMC_S_Set_DataArray_3d |
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| 113 | END INTERFACE PMC_S_Set_DataArray |
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| 114 | |
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| 115 | INTERFACE PMC_S_setInd_and_AllocMem |
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| 116 | MODULE procedure PMC_S_setInd_and_AllocMem |
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| 117 | END INTERFACE PMC_S_setInd_and_AllocMem |
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| 118 | |
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| 119 | INTERFACE PMC_S_FillBuffer |
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| 120 | MODULE procedure PMC_S_FillBuffer |
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| 121 | END INTERFACE PMC_S_FillBuffer |
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| 122 | |
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| 123 | INTERFACE PMC_S_GetData_from_Buffer |
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| 124 | MODULE procedure PMC_S_GetData_from_Buffer |
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| 125 | END INTERFACE PMC_S_GetData_from_Buffer |
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| 126 | |
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| 127 | INTERFACE PMC_S_Set_Active_data_array |
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| 128 | MODULE procedure PMC_S_Set_Active_data_array |
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| 129 | END INTERFACE PMC_S_Set_Active_data_array |
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| 130 | |
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| 131 | ! PUBLIC section |
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| 132 | |
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| 133 | PUBLIC PMC_ServerInit, PMC_S_Set_2D_index_list, PMC_S_GetNextArray, PMC_S_Set_DataArray |
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| 134 | PUBLIC PMC_S_setInd_and_AllocMem, PMC_S_FillBuffer, PMC_S_GetData_from_Buffer, PMC_S_Set_Active_data_array |
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| 135 | PUBLIC PMC_S_clear_next_array_list |
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| 136 | |
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| 137 | CONTAINS |
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| 138 | |
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| 139 | SUBROUTINE PMC_ServerInit |
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| 140 | IMPLICIT none |
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| 141 | INTEGER :: i |
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| 142 | INTEGER :: j |
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| 143 | INTEGER :: ClientId |
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| 144 | INTEGER :: istat |
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| 145 | |
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| 146 | do i=1,size(PMC_Server_for_Client)-1 |
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| 147 | ! if(m_model_comm == 0) write(0,*) 'PMC_Server: Initialize client Id',PMC_Server_for_Client(i) |
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| 148 | |
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| 149 | ClientId = PMC_Server_for_Client(i) |
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| 150 | |
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| 151 | Clients(ClientId)%model_comm = m_model_comm |
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| 152 | Clients(ClientId)%inter_comm = m_to_client_comm(ClientId) |
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| 153 | |
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| 154 | ! Get rank and size |
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| 155 | CALL MPI_Comm_rank (Clients(ClientId)%model_comm, Clients(ClientId)%model_rank, istat); |
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| 156 | CALL MPI_Comm_size (Clients(ClientId)%model_comm, Clients(ClientId)%model_npes, istat); |
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| 157 | CALL MPI_Comm_remote_size (Clients(ClientId)%inter_comm, Clients(ClientId)%inter_npes, istat); |
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| 158 | |
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| 159 | ! Intra communicater is used for MPI_Get |
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| 160 | CALL MPI_Intercomm_merge (Clients(ClientId)%inter_comm, .false., Clients(ClientId)%intra_comm, istat); |
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| 161 | CALL MPI_Comm_rank (Clients(ClientId)%intra_comm, Clients(ClientId)%intra_rank, istat); |
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| 162 | |
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| 163 | ! write(9,*) 'ClientId ',i,ClientId,m_world_rank, Clients(ClientId)%inter_npes |
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| 164 | |
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| 165 | ALLOCATE (Clients(ClientId)%PEs(Clients(ClientId)%inter_npes)) |
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| 166 | ! |
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| 167 | !-- Allocate for all client PEs an array of TYPE ArrayDef to store information of transfer array |
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| 168 | do j=1,Clients(ClientId)%inter_npes |
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| 169 | Allocate(Clients(ClientId)%PEs(j)%array_list(PMC_MAX_ARRAY)) |
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| 170 | end do |
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| 171 | |
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| 172 | CALL Get_DA_names_from_client (ClientId) |
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| 173 | end do |
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| 174 | |
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| 175 | return |
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| 176 | END SUBROUTINE PMC_ServerInit |
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| 177 | |
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| 178 | SUBROUTINE PMC_S_Set_2D_index_list (ClientId, index_list) |
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| 179 | IMPLICIT none |
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| 180 | INTEGER,INTENT(IN) :: ClientId |
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| 181 | INTEGER,DIMENSION(:,:),INTENT(INOUT) :: index_list !Index list will be modified in sort, therefore INOUT |
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| 182 | |
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| 183 | !-- Local variables |
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| 184 | INTEGER :: ip,is,ie,ian,ic,n |
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| 185 | INTEGER :: istat |
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| 186 | |
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| 187 | if(m_model_rank == 0) then |
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| 188 | CALL PMC_sort (index_list, 6) ! Sort to ascending Server PE |
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| 189 | is = 1 |
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| 190 | |
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| 191 | do ip=0,m_model_npes-1 |
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| 192 | |
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| 193 | ! Split into Server PEs |
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| 194 | ie = is-1 !there may be no entry for this PE |
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| 195 | if(is <= size(index_list,2) .and. ie >= 0) then |
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| 196 | do while ( index_list(6,ie+1) == ip) |
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| 197 | ie = ie+1 |
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| 198 | if( ie == size(index_list,2)) EXIT |
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| 199 | end do |
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| 200 | |
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| 201 | ian = ie-is+1 |
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| 202 | else |
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| 203 | is = -1 |
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| 204 | ie = -2 |
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| 205 | ian = 0 |
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| 206 | end if |
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| 207 | |
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| 208 | ! Send data to other server PEs |
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| 209 | |
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| 210 | if(ip == 0) then |
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| 211 | indClients(ClientId)%NrPoints = ian |
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| 212 | if(ian > 0) then |
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| 213 | ALLOCATE (indClients(ClientId)%index_list_2d(6,ian)) |
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| 214 | indClients(ClientId)%index_list_2d(:,1:ian) = index_list(:,is:ie) |
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| 215 | end if |
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| 216 | else |
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| 217 | CALL MPI_Send (ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, istat) |
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| 218 | if(ian > 0) then |
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| 219 | CALL MPI_Send (index_list(1,is), 6*ian, MPI_INTEGER, ip, 1001, & |
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| 220 | m_model_comm, istat) |
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| 221 | end if |
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| 222 | end if |
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| 223 | is = ie+1 |
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| 224 | end do |
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| 225 | else |
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| 226 | CALL MPI_Recv (indClients(ClientId)%NrPoints, 1, MPI_INTEGER, 0, 1000, m_model_comm, & |
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| 227 | MPI_STATUS_IGNORE, istat) |
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| 228 | ian = indClients(ClientId)%NrPoints |
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| 229 | if(ian > 0) then |
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| 230 | ALLOCATE(indClients(ClientId)%index_list_2d(6,ian)) |
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| 231 | CALL MPI_RECV (indClients(ClientId)%index_list_2d, 6*ian, MPI_INTEGER, 0, 1001, & |
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| 232 | m_model_comm, MPI_STATUS_IGNORE, istat) |
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| 233 | end if |
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| 234 | end if |
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| 235 | |
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| 236 | CALL Set_PE_index_list (ClientId,Clients(ClientId),indClients(ClientId)%index_list_2d,indClients(ClientId)%NrPoints) |
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| 237 | |
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| 238 | return |
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| 239 | END SUBROUTINE PMC_S_Set_2D_index_list |
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| 240 | |
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| 241 | SUBROUTINE PMC_S_clear_next_array_list |
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| 242 | IMPLICIT none |
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| 243 | |
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| 244 | next_array_in_list = 0 |
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| 245 | |
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| 246 | return |
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| 247 | END SUBROUTINE PMC_S_clear_next_array_list |
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| 248 | |
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| 249 | ! List handling is still required to get minimal interaction with pmc_interface |
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| 250 | logical function PMC_S_GetNextArray (ClientId, myName) |
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| 251 | INTEGER(iwp),INTENT(IN) :: ClientId |
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| 252 | CHARACTER(len=*),INTENT(OUT) :: myName |
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| 253 | |
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| 254 | !-- local variables |
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| 255 | TYPE(PeDef),POINTER :: aPE |
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| 256 | TYPE(ArrayDef),POINTER :: ar |
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| 257 | |
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| 258 | next_array_in_list = next_array_in_list+1 |
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| 259 | |
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| 260 | !-- Array Names are the same on all client PE, so take first PE to get the name |
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| 261 | aPE => Clients(ClientId)%PEs(1) |
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| 262 | |
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| 263 | if(next_array_in_list > aPE%Nr_arrays) then |
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| 264 | PMC_S_GetNextArray = .false. ! all arrays done |
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| 265 | return |
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| 266 | end if |
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| 267 | |
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| 268 | ar => aPE%array_list(next_array_in_list) |
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| 269 | myName = ar%name |
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| 270 | |
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| 271 | PMC_S_GetNextArray = .true. ! Return true if legal array |
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| 272 | return |
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| 273 | END function PMC_S_GetNextArray |
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| 274 | |
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| 275 | SUBROUTINE PMC_S_Set_DataArray_2d (ClientId, array, array_2 ) |
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| 276 | |
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| 277 | IMPLICIT none |
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| 278 | |
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| 279 | INTEGER,INTENT(IN) :: ClientId |
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| 280 | REAL(wp), INTENT(IN), DIMENSION(:,:) :: array |
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| 281 | REAL(wp), INTENT(IN), DIMENSION(:,:), OPTIONAL :: array_2 |
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| 282 | |
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| 283 | INTEGER :: NrDims |
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| 284 | INTEGER,DIMENSION (4) :: dims |
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| 285 | TYPE(c_ptr) :: array_adr |
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| 286 | TYPE(c_ptr) :: second_adr |
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| 287 | |
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| 288 | dims = 1 |
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| 289 | |
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| 290 | NrDims = 2 |
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| 291 | dims(1) = size(array,1) |
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| 292 | dims(2) = size(array,2) |
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| 293 | array_adr = c_loc(array) |
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| 294 | |
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| 295 | IF ( PRESENT( array_2 ) ) THEN |
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| 296 | second_adr = c_loc(array_2) |
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| 297 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr) |
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| 298 | ELSE |
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| 299 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr) |
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| 300 | ENDIF |
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| 301 | |
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| 302 | return |
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| 303 | END SUBROUTINE PMC_S_Set_DataArray_2d |
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| 304 | |
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| 305 | SUBROUTINE PMC_S_Set_DataArray_3d (ClientId, array, nz_cl, nz, array_2 ) |
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| 306 | |
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| 307 | IMPLICIT none |
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| 308 | |
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| 309 | INTEGER,INTENT(IN) :: ClientId |
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| 310 | REAL(wp), INTENT(IN), DIMENSION(:,:,:) :: array |
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| 311 | REAL(wp), INTENT(IN), DIMENSION(:,:,:), OPTIONAL :: array_2 |
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| 312 | INTEGER,INTENT(IN) :: nz_cl |
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| 313 | INTEGER,INTENT(IN) :: nz |
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| 314 | |
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| 315 | INTEGER :: NrDims |
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| 316 | INTEGER,DIMENSION (4) :: dims |
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| 317 | TYPE(c_ptr) :: array_adr |
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| 318 | TYPE(c_ptr) :: second_adr |
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| 319 | |
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| 320 | dims = 1 |
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| 321 | |
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| 322 | dims = 0 |
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| 323 | NrDims = 3 |
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| 324 | dims(1) = size(array,1) |
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| 325 | dims(2) = size(array,2) |
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| 326 | dims(3) = size(array,3) |
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| 327 | dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1 |
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| 328 | |
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| 329 | array_adr = c_loc(array) |
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| 330 | |
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| 331 | ! |
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| 332 | !-- In PALM's pointer version, two indices have to be stored internally. |
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| 333 | !-- The active address of the data array is set in swap_timelevel |
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| 334 | IF ( PRESENT( array_2 ) ) THEN |
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| 335 | second_adr = c_loc(array_2) |
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| 336 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr) |
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| 337 | ELSE |
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| 338 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr) |
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| 339 | ENDIF |
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| 340 | |
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| 341 | return |
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| 342 | END SUBROUTINE PMC_S_Set_DataArray_3d |
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| 343 | |
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| 344 | SUBROUTINE PMC_S_setInd_and_AllocMem (ClientId) |
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| 345 | |
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| 346 | USE control_parameters, & |
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| 347 | ONLY: message_string |
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| 348 | |
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| 349 | IMPLICIT none |
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| 350 | |
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| 351 | ! |
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| 352 | !-- Naming convention for appendices: _sc -> server to client transfer |
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| 353 | !-- _cs -> client to server transfer |
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| 354 | !-- Send -> Server to client transfer |
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| 355 | !-- Recv -> client to server transfer |
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| 356 | INTEGER,INTENT(IN) :: ClientId |
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| 357 | |
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| 358 | INTEGER :: i, istat, ierr, j |
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| 359 | INTEGER :: arlen, myIndex, tag |
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| 360 | INTEGER :: rCount ! count MPI requests |
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| 361 | INTEGER(idp) :: bufsize ! Size of MPI data Window |
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| 362 | TYPE(PeDef),POINTER :: aPE |
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| 363 | TYPE(ArrayDef),POINTER :: ar |
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| 364 | CHARACTER(len=DA_Namelen) :: myName |
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| 365 | INTEGER,DIMENSION(1024) :: req |
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| 366 | Type(c_ptr) :: base_ptr |
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| 367 | REAL(wp),DIMENSION(:),POINTER,SAVE :: base_array_sc !Base array for server to client transfer |
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| 368 | REAL(wp),DIMENSION(:),POINTER,SAVE :: base_array_cs !Base array for client to server transfer |
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| 369 | INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize |
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| 370 | |
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| 371 | ! |
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| 372 | !-- Server to client direction |
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| 373 | myIndex = 1 |
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| 374 | rCount = 0 |
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| 375 | bufsize = 8 |
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| 376 | |
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| 377 | ! |
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| 378 | !-- First stride: Compute size and set index |
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| 379 | do i=1,Clients(ClientId)%inter_npes |
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| 380 | aPE => Clients(ClientId)%PEs(i) |
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| 381 | tag = 200 |
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| 382 | do j=1,aPE%Nr_arrays |
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| 383 | ar => aPE%array_list(j) |
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| 384 | if(ar%NrDims == 2) then |
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| 385 | arlen = aPE%NrEle ! 2D |
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| 386 | else if(ar%NrDims == 3) then |
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| 387 | arlen = aPE%NrEle * ar%A_dim(4); ! 3D |
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| 388 | else |
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| 389 | arlen = -1 |
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| 390 | end if |
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| 391 | ar%SendIndex = myIndex |
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| 392 | |
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| 393 | tag = tag+1 |
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| 394 | rCount = rCount+1 |
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| 395 | CALL MPI_Isend (myIndex, 1, MPI_INTEGER, i-1, tag, Clients(ClientId)%inter_comm, req(rCount),ierr) |
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| 396 | |
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| 397 | if(rCount == 1024) then ! Maximum of 1024 outstanding requests |
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| 398 | CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr) |
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| 399 | rCount = 0; |
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| 400 | end if |
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| 401 | |
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| 402 | myIndex = myIndex+arlen |
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| 403 | bufsize = bufsize+arlen |
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| 404 | ar%SendSize = arlen |
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| 405 | |
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| 406 | end do |
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| 407 | if(rCount > 0) then ! Wait for all send completed |
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| 408 | CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr) |
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| 409 | end if |
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| 410 | end do |
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| 411 | |
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| 412 | ! |
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| 413 | !-- Create RMA (One Sided Communication) window for data buffer server to |
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| 414 | !-- client transfer. |
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| 415 | !-- The buffer of MPI_Get (counter part of transfer) can be PE-local, i.e. |
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| 416 | !-- it can but must not be part of the MPI RMA window. |
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| 417 | !-- Only one RMA window is required to prepare the data |
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| 418 | !-- for server -> client transfer on the server side and |
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| 419 | !-- for client -> server transfer on the client side |
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| 420 | CALL PMC_Alloc_mem (base_array_sc, bufsize) |
|---|
| 421 | Clients(ClientId)%TotalBufferSize = bufsize*wp !Total buffer size in Byte |
|---|
| 422 | |
|---|
| 423 | WinSize = bufsize*wp |
|---|
| 424 | CALL MPI_Win_create (base_array_sc, WinSize, wp, MPI_INFO_NULL, & |
|---|
| 425 | Clients(ClientId)%intra_comm, Clients(ClientId)%win_server_client, ierr) |
|---|
| 426 | CALL MPI_Win_fence (0, Clients(ClientId)%win_server_client, ierr); ! Open Window to set data |
|---|
| 427 | ! |
|---|
| 428 | !-- Second stride: Set Buffer pointer |
|---|
| 429 | do i=1,Clients(ClientId)%inter_npes |
|---|
| 430 | aPE => Clients(ClientId)%PEs(i) |
|---|
| 431 | do j=1,aPE%Nr_arrays |
|---|
| 432 | ar => aPE%array_list(j) |
|---|
| 433 | ar%SendBuf = c_loc(base_array_sc(ar%SendIndex)) |
|---|
| 434 | if(ar%SendIndex+ar%SendSize > bufsize) then |
|---|
| 435 | write(0,'(a,i4,4i7,1x,a)') 'Server Buffer too small ',i,ar%SendIndex,ar%SendSize,ar%SendIndex+ar%SendSize,bufsize,trim(ar%name) |
|---|
| 436 | CALL MPI_Abort (MPI_COMM_WORLD, istat, ierr) |
|---|
| 437 | end if |
|---|
| 438 | end do |
|---|
| 439 | end do |
|---|
| 440 | |
|---|
| 441 | !-- Client to server direction |
|---|
| 442 | |
|---|
| 443 | bufsize = 8 |
|---|
| 444 | |
|---|
| 445 | !-- First stride, Compute size and set index |
|---|
| 446 | |
|---|
| 447 | do i=1,Clients(ClientId)%inter_npes |
|---|
| 448 | aPE => Clients(ClientId)%PEs(i) |
|---|
| 449 | tag = 300 |
|---|
| 450 | |
|---|
| 451 | do j=1,aPE%Nr_arrays |
|---|
| 452 | ar => aPE%array_list(j) |
|---|
| 453 | |
|---|
| 454 | ! Receive Index from client |
|---|
| 455 | tag = tag+1 |
|---|
| 456 | CALL MPI_Recv (myIndex, 1, MPI_INTEGER, i-1, tag, Clients(ClientId)%inter_comm, MPI_STATUS_IGNORE, ierr) |
|---|
| 457 | |
|---|
| 458 | if(ar%NrDims == 3) then |
|---|
| 459 | bufsize = max(bufsize,aPE%NrEle * ar%A_dim(4)) ! 3D |
|---|
| 460 | else |
|---|
| 461 | bufsize = max(bufsize,aPE%NrEle) ! 2D |
|---|
| 462 | end if |
|---|
| 463 | ar%RecvIndex = myIndex |
|---|
| 464 | end do |
|---|
| 465 | |
|---|
| 466 | end do |
|---|
| 467 | |
|---|
| 468 | !-- Create RMA (One Sided Communication) data buffer |
|---|
| 469 | !-- The buffer for MPI_Get can be PE local, i.e. it can but must not be part of the MPI RMA window |
|---|
| 470 | |
|---|
| 471 | CALL PMC_Alloc_mem (base_array_cs, bufsize, base_ptr) |
|---|
| 472 | Clients(ClientId)%TotalBufferSize = bufsize*wp !Total buffer size in Byte |
|---|
| 473 | |
|---|
| 474 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) |
|---|
| 475 | |
|---|
| 476 | !-- Second stride, Set Buffer pointer |
|---|
| 477 | |
|---|
| 478 | do i=1,Clients(ClientId)%inter_npes |
|---|
| 479 | aPE => Clients(ClientId)%PEs(i) |
|---|
| 480 | |
|---|
| 481 | do j=1,aPE%Nr_arrays |
|---|
| 482 | ar => aPE%array_list(j) |
|---|
| 483 | ar%RecvBuf = base_ptr |
|---|
| 484 | end do |
|---|
| 485 | end do |
|---|
| 486 | |
|---|
| 487 | return |
|---|
| 488 | END SUBROUTINE PMC_S_setInd_and_AllocMem |
|---|
| 489 | |
|---|
| 490 | SUBROUTINE PMC_S_FillBuffer (ClientId, WaitTime) |
|---|
| 491 | IMPLICIT none |
|---|
| 492 | INTEGER,INTENT(IN) :: ClientId |
|---|
| 493 | REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime |
|---|
| 494 | |
|---|
| 495 | INTEGER :: ip,ij,istat,ierr,j |
|---|
| 496 | INTEGER :: myIndex |
|---|
| 497 | REAL(wp) :: t1,t2 |
|---|
| 498 | TYPE(PeDef),POINTER :: aPE |
|---|
| 499 | TYPE(ArrayDef),POINTER :: ar |
|---|
| 500 | CHARACTER(len=DA_Namelen) :: myName |
|---|
| 501 | INTEGER,DIMENSION(1) :: buf_shape |
|---|
| 502 | REAL(wp), POINTER, DIMENSION(:) :: buf |
|---|
| 503 | REAL(wp), POINTER, DIMENSION(:,:) :: data_2d |
|---|
| 504 | REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d |
|---|
| 505 | |
|---|
| 506 | !-- Synchronization of the model is done in pmci_client_synchronize and pmci_server_synchronize |
|---|
| 507 | !-- Therefor the RMA window cann be filled without sychronization at this point and the barrier |
|---|
| 508 | !-- is not necessary |
|---|
| 509 | !-- Please note that WaitTime has to be set in PMC_S_FillBuffer AND PMC_C_GetBuffer |
|---|
| 510 | |
|---|
| 511 | if(present(WaitTime)) then |
|---|
| 512 | t1 = PMC_Time() |
|---|
| 513 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) |
|---|
| 514 | t2 = PMC_Time() |
|---|
| 515 | WaitTime = t2-t1 |
|---|
| 516 | end if |
|---|
| 517 | |
|---|
| 518 | do ip=1,Clients(ClientId)%inter_npes |
|---|
| 519 | aPE => Clients(ClientId)%PEs(ip) |
|---|
| 520 | do j=1,aPE%Nr_arrays |
|---|
| 521 | ar => aPE%array_list(j) |
|---|
| 522 | myIndex=1 |
|---|
| 523 | if(ar%NrDims == 2) then |
|---|
| 524 | buf_shape(1) = aPE%NrEle |
|---|
| 525 | CALL c_f_pointer(ar%SendBuf, buf, buf_shape) |
|---|
| 526 | CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2)) |
|---|
| 527 | do ij=1,aPE%NrEle |
|---|
| 528 | buf(myIndex) = data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) |
|---|
| 529 | myIndex = myIndex+1 |
|---|
| 530 | end do |
|---|
| 531 | else if(ar%NrDims == 3) then |
|---|
| 532 | buf_shape(1) = aPE%NrEle*ar%A_dim(4) |
|---|
| 533 | CALL c_f_pointer(ar%SendBuf, buf, buf_shape) |
|---|
| 534 | CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3)) |
|---|
| 535 | do ij=1,aPE%NrEle |
|---|
| 536 | buf(myIndex:myIndex+ar%A_dim(4)-1) = data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i) |
|---|
| 537 | myIndex = myIndex+ar%A_dim(4) |
|---|
| 538 | end do |
|---|
| 539 | end if |
|---|
| 540 | end do |
|---|
| 541 | end do |
|---|
| 542 | |
|---|
| 543 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! buffer is filled |
|---|
| 544 | |
|---|
| 545 | return |
|---|
| 546 | END SUBROUTINE PMC_S_FillBuffer |
|---|
| 547 | |
|---|
| 548 | SUBROUTINE PMC_S_GetData_from_Buffer (ClientId, WaitTime) |
|---|
| 549 | |
|---|
| 550 | IMPLICIT none |
|---|
| 551 | |
|---|
| 552 | INTEGER,INTENT(IN) :: ClientId |
|---|
| 553 | REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime |
|---|
| 554 | |
|---|
| 555 | !-- local variables |
|---|
| 556 | INTEGER :: ip,ij,istat,ierr,j |
|---|
| 557 | INTEGER :: myIndex |
|---|
| 558 | INTEGER :: nr |
|---|
| 559 | REAL(wp) :: t1,t2 |
|---|
| 560 | TYPE(PeDef),POINTER :: aPE |
|---|
| 561 | TYPE(ArrayDef),POINTER :: ar |
|---|
| 562 | CHARACTER(len=DA_Namelen) :: myName |
|---|
| 563 | INTEGER,DIMENSION(1) :: buf_shape |
|---|
| 564 | REAL(wp), POINTER, DIMENSION(:) :: buf |
|---|
| 565 | REAL(wp), POINTER, DIMENSION(:,:) :: data_2d |
|---|
| 566 | REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d |
|---|
| 567 | INTEGER :: target_pe |
|---|
| 568 | INTEGER(kind=MPI_ADDRESS_KIND) :: target_disp |
|---|
| 569 | |
|---|
| 570 | t1 = PMC_Time() |
|---|
| 571 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for client to fill buffer |
|---|
| 572 | t2 = PMC_Time()-t1 |
|---|
| 573 | if(present(WaitTime)) WaitTime = t2 |
|---|
| 574 | |
|---|
| 575 | ! CALL MPI_Win_fence (0, Clients(ClientId)%win_server_client, ierr) ! Fence might do it, test later |
|---|
| 576 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for buffer is filled |
|---|
| 577 | |
|---|
| 578 | do ip=1,Clients(ClientId)%inter_npes |
|---|
| 579 | aPE => Clients(ClientId)%PEs(ip) |
|---|
| 580 | do j=1,aPE%Nr_arrays |
|---|
| 581 | ar => aPE%array_list(j) |
|---|
| 582 | |
|---|
| 583 | if(ar%RecvIndex < 0) CYCLE |
|---|
| 584 | |
|---|
| 585 | if(ar%NrDims == 2) then |
|---|
| 586 | nr = aPE%NrEle |
|---|
| 587 | else if(ar%NrDims == 3) then |
|---|
| 588 | nr = aPE%NrEle*ar%A_dim(4) |
|---|
| 589 | end if |
|---|
| 590 | |
|---|
| 591 | buf_shape(1) = nr |
|---|
| 592 | CALL c_f_pointer(ar%RecvBuf, buf, buf_shape) |
|---|
| 593 | ! |
|---|
| 594 | !-- MPI passive target RMA |
|---|
| 595 | |
|---|
| 596 | if(nr > 0) then |
|---|
| 597 | target_disp = ar%RecvIndex-1 |
|---|
| 598 | target_pe = ip-1+m_model_npes ! client PEs are located behind server PEs |
|---|
| 599 | CALL MPI_Win_lock (MPI_LOCK_SHARED , target_pe, 0, Clients(ClientId)%win_server_client, ierr) |
|---|
| 600 | CALL MPI_Get (buf, nr, MPI_REAL, target_pe, target_disp, nr, MPI_REAL, Clients(ClientId)%win_server_client, ierr) |
|---|
| 601 | CALL MPI_Win_unlock (target_pe, Clients(ClientId)%win_server_client, ierr) |
|---|
| 602 | end if |
|---|
| 603 | |
|---|
| 604 | myIndex=1 |
|---|
| 605 | if(ar%NrDims == 2) then |
|---|
| 606 | CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2)) |
|---|
| 607 | do ij=1,aPE%NrEle |
|---|
| 608 | data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex) |
|---|
| 609 | myIndex = myIndex+1 |
|---|
| 610 | end do |
|---|
| 611 | else if(ar%NrDims == 3) then |
|---|
| 612 | CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3)) |
|---|
| 613 | do ij=1,aPE%NrEle |
|---|
| 614 | data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex:myIndex+ar%A_dim(4)-1) |
|---|
| 615 | myIndex = myIndex+ar%A_dim(4) |
|---|
| 616 | end do |
|---|
| 617 | end if |
|---|
| 618 | end do |
|---|
| 619 | end do |
|---|
| 620 | |
|---|
| 621 | END SUBROUTINE PMC_S_GetData_from_Buffer |
|---|
| 622 | |
|---|
| 623 | ! Private SUBROUTINEs |
|---|
| 624 | |
|---|
| 625 | SUBROUTINE Get_DA_names_from_client (ClientId) |
|---|
| 626 | IMPLICIT none |
|---|
| 627 | INTEGER,INTENT(IN) :: ClientId |
|---|
| 628 | !-- local variables |
|---|
| 629 | type(DA_NameDef) :: myName |
|---|
| 630 | |
|---|
| 631 | ! Get Data Array Description and Name from Client |
|---|
| 632 | |
|---|
| 633 | do |
|---|
| 634 | CALL PMC_Bcast ( myName%couple_index, 0, comm=m_to_client_comm(ClientId)) |
|---|
| 635 | if(myName%couple_index == -1) EXIT |
|---|
| 636 | CALL PMC_Bcast ( myName%ServerDesc, 0, comm=m_to_client_comm(ClientId)) |
|---|
| 637 | CALL PMC_Bcast ( myName%NameOnServer, 0, comm=m_to_client_comm(ClientId)) |
|---|
| 638 | CALL PMC_Bcast ( myName%ClientDesc, 0, comm=m_to_client_comm(ClientId)) |
|---|
| 639 | CALL PMC_Bcast ( myName%NameOnClient, 0, comm=m_to_client_comm(ClientId)) |
|---|
| 640 | |
|---|
| 641 | CALL PMC_G_SetName (clients(ClientID), myName%couple_index, myName%NameOnServer ) |
|---|
| 642 | end do |
|---|
| 643 | |
|---|
| 644 | return |
|---|
| 645 | END SUBROUTINE Get_DA_names_from_client |
|---|
| 646 | |
|---|
| 647 | SUBROUTINE PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr) |
|---|
| 648 | IMPLICIT none |
|---|
| 649 | |
|---|
| 650 | INTEGER,INTENT(IN) :: ClientId |
|---|
| 651 | INTEGER,INTENT(IN) :: NrDims |
|---|
| 652 | INTEGER,INTENT(IN),DIMENSION(:) :: dims |
|---|
| 653 | TYPE(c_ptr),INTENT(IN) :: array_adr |
|---|
| 654 | TYPE(c_ptr),INTENT(IN),OPTIONAL :: second_adr |
|---|
| 655 | |
|---|
| 656 | INTEGER :: i |
|---|
| 657 | TYPE(PeDef),POINTER :: aPE |
|---|
| 658 | TYPE(ArrayDef),POINTER :: ar |
|---|
| 659 | CHARACTER(len=DA_Namelen) :: myName |
|---|
| 660 | |
|---|
| 661 | ! Set Array for Client interPE 0 |
|---|
| 662 | |
|---|
| 663 | do i=1,Clients(ClientId)%inter_npes |
|---|
| 664 | aPE => Clients(ClientId)%PEs(i) |
|---|
| 665 | ar => aPE%array_list(next_array_in_list) |
|---|
| 666 | ar%NrDims = NrDims |
|---|
| 667 | ar%A_dim = dims |
|---|
| 668 | ar%data = array_adr |
|---|
| 669 | if(present(second_adr)) then |
|---|
| 670 | ar%po_data(1) = array_adr |
|---|
| 671 | ar%po_data(2) = second_adr |
|---|
| 672 | else |
|---|
| 673 | ar%po_data(1) = C_NULL_PTR |
|---|
| 674 | ar%po_data(2) = C_NULL_PTR |
|---|
| 675 | end if |
|---|
| 676 | end do |
|---|
| 677 | |
|---|
| 678 | return |
|---|
| 679 | END SUBROUTINE PMC_S_SetArray |
|---|
| 680 | |
|---|
| 681 | |
|---|
| 682 | SUBROUTINE PMC_S_Set_Active_data_array (ClientId,iactive) |
|---|
| 683 | IMPLICIT none |
|---|
| 684 | |
|---|
| 685 | INTEGER,INTENT(IN) :: ClientId |
|---|
| 686 | INTEGER,INTENT(IN) :: iactive |
|---|
| 687 | |
|---|
| 688 | !-- local variables |
|---|
| 689 | INTEGER :: i, ip, j |
|---|
| 690 | TYPE(PeDef),POINTER :: aPE |
|---|
| 691 | TYPE(ArrayDef),POINTER :: ar |
|---|
| 692 | CHARACTER(len=DA_Namelen) :: myName |
|---|
| 693 | |
|---|
| 694 | do ip=1,Clients(ClientId)%inter_npes |
|---|
| 695 | aPE => Clients(ClientId)%PEs(ip) |
|---|
| 696 | do j=1,aPE%Nr_arrays |
|---|
| 697 | ar => aPE%array_list(j) |
|---|
| 698 | if(iactive == 1 .OR. iactive == 2) then |
|---|
| 699 | ar%data = ar%po_data(iactive) |
|---|
| 700 | end if |
|---|
| 701 | end do |
|---|
| 702 | end do |
|---|
| 703 | |
|---|
| 704 | return |
|---|
| 705 | END SUBROUTINE PMC_S_Set_Active_data_array |
|---|
| 706 | |
|---|
| 707 | |
|---|
| 708 | SUBROUTINE Set_PE_index_list (ClientId, myClient,index_list,NrP) |
|---|
| 709 | IMPLICIT none |
|---|
| 710 | |
|---|
| 711 | INTEGER,INTENT(IN) :: ClientId |
|---|
| 712 | TYPE(ClientDef),INTENT(INOUT) :: myClient |
|---|
| 713 | INTEGER,INTENT(IN),DIMENSION(:,:) :: index_list |
|---|
| 714 | INTEGER,INTENT(IN) :: NrP |
|---|
| 715 | |
|---|
| 716 | !-- local variables |
|---|
| 717 | INTEGER :: i,j,ind,ierr,i2 |
|---|
| 718 | TYPE(PeDef),POINTER :: aPE |
|---|
| 719 | INTEGER :: RemPE |
|---|
| 720 | INTEGER,DIMENSION(myClient%inter_npes) :: RemInd |
|---|
| 721 | INTEGER,DIMENSION(:),POINTER :: RemIndw |
|---|
| 722 | INTEGER,DIMENSION(:),POINTER :: RLdef |
|---|
| 723 | INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize |
|---|
| 724 | INTEGER :: indWin,indWin2 |
|---|
| 725 | |
|---|
| 726 | ! First, count entries for every remote client PE |
|---|
| 727 | |
|---|
| 728 | do i=1,myClient%inter_npes |
|---|
| 729 | aPE => myClient%PEs(i) |
|---|
| 730 | aPE%NrEle = 0 |
|---|
| 731 | end do |
|---|
| 732 | |
|---|
| 733 | do j=1,NrP ! loop over number of cells coarse grid |
|---|
| 734 | RemPE = index_list(5,j)+1 ! Pe number remote PE |
|---|
| 735 | aPE => myClient%PEs(RemPE) |
|---|
| 736 | aPE% NrEle = aPE% NrEle+1 ! Increment Number of elements for this client Pe |
|---|
| 737 | end do |
|---|
| 738 | |
|---|
| 739 | do i=1,myClient%inter_npes |
|---|
| 740 | aPE => myClient%PEs(i) |
|---|
| 741 | ALLOCATE(aPE%locInd(aPE%NrEle)) |
|---|
| 742 | end do |
|---|
| 743 | |
|---|
| 744 | RemInd = 0 |
|---|
| 745 | |
|---|
| 746 | ! Second, Create lists |
|---|
| 747 | |
|---|
| 748 | do j=1,NrP ! loop over number of cells coarse grid |
|---|
| 749 | RemPE = index_list(5,j)+1 ! Pe number remote PE |
|---|
| 750 | aPE => myClient%PEs(RemPE) |
|---|
| 751 | RemInd(RemPE) = RemInd(RemPE)+1 |
|---|
| 752 | ind = RemInd(RemPE) |
|---|
| 753 | aPE%locInd(ind)%i = index_list(1,j) |
|---|
| 754 | aPE%locInd(ind)%j = index_list(2,j) |
|---|
| 755 | end do |
|---|
| 756 | |
|---|
| 757 | ! Prepare Number of Elements for Client PEs |
|---|
| 758 | CALL PMC_Alloc_mem (RLdef, myClient%inter_npes*2) |
|---|
| 759 | WinSize = myClient%inter_npes*c_sizeof(i)*2 ! Number of Client PEs * size of INTEGER (i just arbitrary INTEGER) |
|---|
| 760 | |
|---|
| 761 | CALL MPI_Win_create (RLdef, WinSize, iwp, MPI_INFO_NULL, myClient%intra_comm, indWin, ierr); |
|---|
| 762 | CALL MPI_Win_fence (0, indWin, ierr); ! Open Window to set data |
|---|
| 763 | |
|---|
| 764 | RLdef(1) = 0 ! Index on Remote PE 0 |
|---|
| 765 | RLdef(2) = RemInd(1) ! Number of Elements on Rem PE 0 |
|---|
| 766 | |
|---|
| 767 | do i=2,myClient%inter_npes ! Reserve Buffer for index array |
|---|
| 768 | i2 = (i-1)*2+1 |
|---|
| 769 | RLdef(i2) = RLdef(i2-2) + RLdef(i2-1)*2 ! Index on Remote PE |
|---|
| 770 | RLdef(i2+1) = RemInd(i) ! Number of Elements on Remote PE |
|---|
| 771 | end do |
|---|
| 772 | |
|---|
| 773 | CALL MPI_Win_fence (0, indWin, ierr); ! Close Window to allow client to access data |
|---|
| 774 | CALL MPI_Win_fence (0, indWin, ierr); ! Client has retrieved data |
|---|
| 775 | |
|---|
| 776 | i2 = 2*myClient%inter_npes-1 |
|---|
| 777 | WinSize = (RLdef(i2)+RLdef(i2+1))*2 |
|---|
| 778 | WinSize = max(WinSize,1) ! Make sure, MPI_Alloc_mem works |
|---|
| 779 | |
|---|
| 780 | CALL PMC_Alloc_mem (RemIndw, int(WinSize)) |
|---|
| 781 | |
|---|
| 782 | CALL MPI_Barrier (m_model_comm, ierr) |
|---|
| 783 | CALL MPI_Win_create (RemIndw, WinSize*c_sizeof(i), iwp, MPI_INFO_NULL, myClient%intra_comm, indWin2, ierr); |
|---|
| 784 | |
|---|
| 785 | CALL MPI_Win_fence (0, indWin2, ierr); ! Open Window to set data |
|---|
| 786 | do j=1,NrP ! this loop creates the 2D index list |
|---|
| 787 | RemPE = index_list(5,j)+1 ! Pe number remote PE |
|---|
| 788 | aPE => myClient%PEs(RemPE) |
|---|
| 789 | i2 = RemPE*2-1 |
|---|
| 790 | ind = RLdef(i2)+1 |
|---|
| 791 | RemIndw(ind) = index_list(3,j) |
|---|
| 792 | RemIndw(ind+1) = index_list(4,j) |
|---|
| 793 | RLdef(i2) = RLdef(i2)+2 |
|---|
| 794 | end do |
|---|
| 795 | CALL MPI_Win_fence (0, indWin2, ierr); !all data set |
|---|
| 796 | |
|---|
| 797 | CALL MPI_Barrier(myClient%intra_comm, ierr) ! Dont know why, but this barrier is necessary before we can free the windows |
|---|
| 798 | |
|---|
| 799 | CALL MPI_Win_free(indWin, ierr) |
|---|
| 800 | CALL MPI_Win_free(indWin2, ierr) |
|---|
| 801 | |
|---|
| 802 | ! Sollte funktionieren, Problem mit MPI implementation |
|---|
| 803 | ! https://www.lrz.de/services/software/parallel/mpi/onesided |
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| 804 | ! CALL MPI_Free_mem (RemIndw, ierr) |
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| 805 | |
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| 806 | return |
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| 807 | END SUBROUTINE Set_PE_index_list |
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| 808 | |
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| 809 | #endif |
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| 810 | END MODULE pmc_server |
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