[1762] | 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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[1818] | 17 | ! Copyright 1997-2016 Leibniz Universitaet Hannover |
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[1762] | 18 | !--------------------------------------------------------------------------------! |
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| 19 | ! |
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| 20 | ! Current revisions: |
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| 21 | ! ------------------ |
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[1850] | 22 | ! Module renamed |
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[1834] | 23 | ! |
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| 24 | ! |
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[1762] | 25 | ! Former revisions: |
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| 26 | ! ----------------- |
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| 27 | ! $Id: pmc_server_mod.f90 1850 2016-04-08 13:29:27Z maronga $ |
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| 28 | ! |
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[1834] | 29 | ! 1833 2016-04-07 14:23:03Z raasch |
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| 30 | ! gfortran requires pointer attributes for some array declarations, |
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| 31 | ! long line wrapped |
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| 32 | ! |
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[1809] | 33 | ! 1808 2016-04-05 19:44:00Z raasch |
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| 34 | ! MPI module used by default on all machines |
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| 35 | ! |
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[1798] | 36 | ! 1797 2016-03-21 16:50:28Z raasch |
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| 37 | ! introduction of different datatransfer modes |
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| 38 | ! |
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[1792] | 39 | ! 1791 2016-03-11 10:41:25Z raasch |
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| 40 | ! Debug write-statements commented out |
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| 41 | ! |
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[1787] | 42 | ! 1786 2016-03-08 05:49:27Z raasch |
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| 43 | ! change in client-server data transfer: server now gets data from client |
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| 44 | ! instead that client put's it to the server |
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| 45 | ! |
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[1780] | 46 | ! 1779 2016-03-03 08:01:28Z raasch |
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| 47 | ! kind=dp replaced by wp, |
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| 48 | ! error messages removed or changed to PALM style, dim_order removed |
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| 49 | ! array management changed from linked list to sequential loop |
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| 50 | ! |
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[1767] | 51 | ! 1766 2016-02-29 08:37:15Z raasch |
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| 52 | ! modifications to allow for using PALM's pointer version |
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| 53 | ! +new routine pmc_s_set_active_data_array |
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| 54 | ! |
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[1765] | 55 | ! 1764 2016-02-28 12:45:19Z raasch |
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| 56 | ! cpp-statement added (nesting can only be used in parallel mode) |
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| 57 | ! |
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[1763] | 58 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 59 | ! Initial revision by K. Ketelsen |
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[1762] | 60 | ! |
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| 61 | ! Description: |
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| 62 | ! ------------ |
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| 63 | ! |
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| 64 | ! Server part of Palm Model Coupler |
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| 65 | !------------------------------------------------------------------------------! |
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| 66 | |
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[1764] | 67 | #if defined( __parallel ) |
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[1762] | 68 | use, intrinsic :: iso_c_binding |
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| 69 | |
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[1808] | 70 | #if defined( __mpifh ) |
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| 71 | INCLUDE "mpif.h" |
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| 72 | #else |
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[1764] | 73 | USE MPI |
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| 74 | #endif |
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| 75 | USE kinds |
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[1762] | 76 | USE PMC_general, ONLY: ClientDef, PMC_MAX_MODELL,PMC_sort, DA_NameDef, DA_Desclen, DA_Namelen, & |
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[1779] | 77 | PMC_G_SetName, PeDef, ArrayDef, PMC_MAX_ARRAY |
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[1762] | 78 | USE PMC_handle_communicator, ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_client_comm, & |
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| 79 | PMC_Server_for_Client, m_world_rank |
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| 80 | USE PMC_MPI_wrapper, ONLY: PMC_Send_to_Client, PMC_Recv_from_Client, PMC_Bcast, PMC_Inter_Bcast, & |
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| 81 | PMC_Alloc_mem, PMC_Time |
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| 82 | |
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| 83 | IMPLICIT none |
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| 84 | PRIVATE |
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| 85 | SAVE |
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| 86 | |
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| 87 | TYPE ClientIndexDef |
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| 88 | INTEGER :: NrPoints |
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| 89 | INTEGER,DIMENSION(:,:),allocatable :: index_list_2d |
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| 90 | END TYPE ClientIndexDef |
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| 91 | |
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| 92 | TYPE(ClientDef),DIMENSION(PMC_MAX_MODELL) :: Clients |
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| 93 | TYPE(ClientIndexDef),DIMENSION(PMC_MAX_MODELL) :: indClients |
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| 94 | |
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[1779] | 95 | INTEGER :: next_array_in_list = 0 |
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| 96 | |
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[1762] | 97 | PUBLIC PMC_Server_for_Client |
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| 98 | |
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| 99 | INTERFACE PMC_ServerInit |
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| 100 | MODULE procedure PMC_ServerInit |
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| 101 | END INTERFACE PMC_ServerInit |
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| 102 | |
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| 103 | INTERFACE PMC_S_Set_2D_index_list |
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| 104 | MODULE procedure PMC_S_Set_2D_index_list |
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| 105 | END INTERFACE PMC_S_Set_2D_index_list |
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| 106 | |
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[1779] | 107 | INTERFACE PMC_S_clear_next_array_list |
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| 108 | MODULE procedure PMC_S_clear_next_array_list |
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| 109 | END INTERFACE PMC_S_clear_next_array_list |
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| 110 | |
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[1762] | 111 | INTERFACE PMC_S_GetNextArray |
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| 112 | MODULE procedure PMC_S_GetNextArray |
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| 113 | END INTERFACE PMC_S_GetNextArray |
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| 114 | |
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| 115 | INTERFACE PMC_S_Set_DataArray |
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| 116 | MODULE procedure PMC_S_Set_DataArray_2d |
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| 117 | MODULE procedure PMC_S_Set_DataArray_3d |
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| 118 | END INTERFACE PMC_S_Set_DataArray |
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| 119 | |
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| 120 | INTERFACE PMC_S_setInd_and_AllocMem |
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| 121 | MODULE procedure PMC_S_setInd_and_AllocMem |
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| 122 | END INTERFACE PMC_S_setInd_and_AllocMem |
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| 123 | |
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| 124 | INTERFACE PMC_S_FillBuffer |
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| 125 | MODULE procedure PMC_S_FillBuffer |
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| 126 | END INTERFACE PMC_S_FillBuffer |
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| 127 | |
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| 128 | INTERFACE PMC_S_GetData_from_Buffer |
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| 129 | MODULE procedure PMC_S_GetData_from_Buffer |
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| 130 | END INTERFACE PMC_S_GetData_from_Buffer |
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| 131 | |
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[1766] | 132 | INTERFACE PMC_S_Set_Active_data_array |
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| 133 | MODULE procedure PMC_S_Set_Active_data_array |
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| 134 | END INTERFACE PMC_S_Set_Active_data_array |
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| 135 | |
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[1762] | 136 | ! PUBLIC section |
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| 137 | |
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| 138 | PUBLIC PMC_ServerInit, PMC_S_Set_2D_index_list, PMC_S_GetNextArray, PMC_S_Set_DataArray |
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[1766] | 139 | PUBLIC PMC_S_setInd_and_AllocMem, PMC_S_FillBuffer, PMC_S_GetData_from_Buffer, PMC_S_Set_Active_data_array |
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[1779] | 140 | PUBLIC PMC_S_clear_next_array_list |
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[1762] | 141 | |
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| 142 | CONTAINS |
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| 143 | |
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| 144 | SUBROUTINE PMC_ServerInit |
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| 145 | IMPLICIT none |
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| 146 | INTEGER :: i |
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| 147 | INTEGER :: j |
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| 148 | INTEGER :: ClientId |
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| 149 | INTEGER :: istat |
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| 150 | |
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| 151 | do i=1,size(PMC_Server_for_Client)-1 |
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[1791] | 152 | ! if(m_model_comm == 0) write(0,*) 'PMC_Server: Initialize client Id',PMC_Server_for_Client(i) |
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[1762] | 153 | |
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| 154 | ClientId = PMC_Server_for_Client(i) |
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| 155 | |
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| 156 | Clients(ClientId)%model_comm = m_model_comm |
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| 157 | Clients(ClientId)%inter_comm = m_to_client_comm(ClientId) |
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| 158 | |
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| 159 | ! Get rank and size |
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| 160 | CALL MPI_Comm_rank (Clients(ClientId)%model_comm, Clients(ClientId)%model_rank, istat); |
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| 161 | CALL MPI_Comm_size (Clients(ClientId)%model_comm, Clients(ClientId)%model_npes, istat); |
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| 162 | CALL MPI_Comm_remote_size (Clients(ClientId)%inter_comm, Clients(ClientId)%inter_npes, istat); |
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| 163 | |
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| 164 | ! Intra communicater is used for MPI_Get |
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| 165 | CALL MPI_Intercomm_merge (Clients(ClientId)%inter_comm, .false., Clients(ClientId)%intra_comm, istat); |
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| 166 | CALL MPI_Comm_rank (Clients(ClientId)%intra_comm, Clients(ClientId)%intra_rank, istat); |
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| 167 | |
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[1791] | 168 | ! write(9,*) 'ClientId ',i,ClientId,m_world_rank, Clients(ClientId)%inter_npes |
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[1762] | 169 | |
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| 170 | ALLOCATE (Clients(ClientId)%PEs(Clients(ClientId)%inter_npes)) |
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[1779] | 171 | ! |
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| 172 | !-- Allocate for all client PEs an array of TYPE ArrayDef to store information of transfer array |
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| 173 | do j=1,Clients(ClientId)%inter_npes |
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| 174 | Allocate(Clients(ClientId)%PEs(j)%array_list(PMC_MAX_ARRAY)) |
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[1762] | 175 | end do |
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| 176 | |
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| 177 | CALL Get_DA_names_from_client (ClientId) |
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| 178 | end do |
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| 179 | |
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| 180 | return |
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| 181 | END SUBROUTINE PMC_ServerInit |
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| 182 | |
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| 183 | SUBROUTINE PMC_S_Set_2D_index_list (ClientId, index_list) |
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| 184 | IMPLICIT none |
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| 185 | INTEGER,INTENT(IN) :: ClientId |
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| 186 | INTEGER,DIMENSION(:,:),INTENT(INOUT) :: index_list !Index list will be modified in sort, therefore INOUT |
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| 187 | |
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| 188 | !-- Local variables |
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| 189 | INTEGER :: ip,is,ie,ian,ic,n |
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| 190 | INTEGER :: istat |
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| 191 | |
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| 192 | if(m_model_rank == 0) then |
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| 193 | CALL PMC_sort (index_list, 6) ! Sort to ascending Server PE |
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| 194 | is = 1 |
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| 195 | |
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| 196 | do ip=0,m_model_npes-1 |
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| 197 | |
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| 198 | ! Split into Server PEs |
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| 199 | ie = is-1 !there may be no entry for this PE |
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| 200 | if(is <= size(index_list,2) .and. ie >= 0) then |
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| 201 | do while ( index_list(6,ie+1) == ip) |
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| 202 | ie = ie+1 |
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| 203 | if( ie == size(index_list,2)) EXIT |
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| 204 | end do |
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| 205 | |
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| 206 | ian = ie-is+1 |
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| 207 | else |
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| 208 | is = -1 |
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| 209 | ie = -2 |
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| 210 | ian = 0 |
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| 211 | end if |
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| 212 | |
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| 213 | ! Send data to other server PEs |
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| 214 | |
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| 215 | if(ip == 0) then |
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| 216 | indClients(ClientId)%NrPoints = ian |
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| 217 | if(ian > 0) then |
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| 218 | ALLOCATE (indClients(ClientId)%index_list_2d(6,ian)) |
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| 219 | indClients(ClientId)%index_list_2d(:,1:ian) = index_list(:,is:ie) |
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| 220 | end if |
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| 221 | else |
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| 222 | CALL MPI_Send (ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, istat) |
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| 223 | if(ian > 0) then |
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| 224 | CALL MPI_Send (index_list(1,is), 6*ian, MPI_INTEGER, ip, 1001, & |
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| 225 | m_model_comm, istat) |
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| 226 | end if |
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| 227 | end if |
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| 228 | is = ie+1 |
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| 229 | end do |
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| 230 | else |
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| 231 | CALL MPI_Recv (indClients(ClientId)%NrPoints, 1, MPI_INTEGER, 0, 1000, m_model_comm, & |
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| 232 | MPI_STATUS_IGNORE, istat) |
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| 233 | ian = indClients(ClientId)%NrPoints |
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| 234 | if(ian > 0) then |
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| 235 | ALLOCATE(indClients(ClientId)%index_list_2d(6,ian)) |
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| 236 | CALL MPI_RECV (indClients(ClientId)%index_list_2d, 6*ian, MPI_INTEGER, 0, 1001, & |
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| 237 | m_model_comm, MPI_STATUS_IGNORE, istat) |
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| 238 | end if |
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| 239 | end if |
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| 240 | |
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| 241 | CALL Set_PE_index_list (ClientId,Clients(ClientId),indClients(ClientId)%index_list_2d,indClients(ClientId)%NrPoints) |
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| 242 | |
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| 243 | return |
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| 244 | END SUBROUTINE PMC_S_Set_2D_index_list |
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| 245 | |
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[1779] | 246 | SUBROUTINE PMC_S_clear_next_array_list |
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| 247 | IMPLICIT none |
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[1762] | 248 | |
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[1779] | 249 | next_array_in_list = 0 |
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[1762] | 250 | |
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[1779] | 251 | return |
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| 252 | END SUBROUTINE PMC_S_clear_next_array_list |
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[1762] | 253 | |
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[1779] | 254 | ! List handling is still required to get minimal interaction with pmc_interface |
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| 255 | logical function PMC_S_GetNextArray (ClientId, myName) |
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| 256 | INTEGER(iwp),INTENT(IN) :: ClientId |
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| 257 | CHARACTER(len=*),INTENT(OUT) :: myName |
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[1762] | 258 | |
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[1779] | 259 | !-- local variables |
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| 260 | TYPE(PeDef),POINTER :: aPE |
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| 261 | TYPE(ArrayDef),POINTER :: ar |
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[1762] | 262 | |
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[1779] | 263 | next_array_in_list = next_array_in_list+1 |
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[1762] | 264 | |
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[1779] | 265 | !-- Array Names are the same on all client PE, so take first PE to get the name |
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| 266 | aPE => Clients(ClientId)%PEs(1) |
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| 267 | |
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| 268 | if(next_array_in_list > aPE%Nr_arrays) then |
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| 269 | PMC_S_GetNextArray = .false. ! all arrays done |
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| 270 | return |
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| 271 | end if |
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| 272 | |
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| 273 | ar => aPE%array_list(next_array_in_list) |
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| 274 | myName = ar%name |
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| 275 | |
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| 276 | PMC_S_GetNextArray = .true. ! Return true if legal array |
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| 277 | return |
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[1762] | 278 | END function PMC_S_GetNextArray |
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| 279 | |
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[1766] | 280 | SUBROUTINE PMC_S_Set_DataArray_2d (ClientId, array, array_2 ) |
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[1779] | 281 | |
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[1762] | 282 | IMPLICIT none |
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[1779] | 283 | |
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[1833] | 284 | INTEGER,INTENT(IN) :: ClientId |
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[1779] | 285 | |
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[1833] | 286 | REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER :: array |
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| 287 | REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER, OPTIONAL :: array_2 |
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| 288 | |
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[1762] | 289 | INTEGER :: NrDims |
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| 290 | INTEGER,DIMENSION (4) :: dims |
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| 291 | TYPE(c_ptr) :: array_adr |
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[1766] | 292 | TYPE(c_ptr) :: second_adr |
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[1762] | 293 | |
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| 294 | dims = 1 |
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| 295 | |
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| 296 | NrDims = 2 |
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| 297 | dims(1) = size(array,1) |
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| 298 | dims(2) = size(array,2) |
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| 299 | array_adr = c_loc(array) |
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| 300 | |
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[1766] | 301 | IF ( PRESENT( array_2 ) ) THEN |
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| 302 | second_adr = c_loc(array_2) |
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[1779] | 303 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr) |
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[1766] | 304 | ELSE |
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[1779] | 305 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr) |
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[1766] | 306 | ENDIF |
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[1762] | 307 | |
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| 308 | return |
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| 309 | END SUBROUTINE PMC_S_Set_DataArray_2d |
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| 310 | |
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[1766] | 311 | SUBROUTINE PMC_S_Set_DataArray_3d (ClientId, array, nz_cl, nz, array_2 ) |
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[1779] | 312 | |
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[1762] | 313 | IMPLICIT none |
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[1779] | 314 | |
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[1833] | 315 | INTEGER,INTENT(IN) :: ClientId |
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| 316 | |
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| 317 | REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER :: array |
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| 318 | REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER, OPTIONAL :: array_2 |
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[1762] | 319 | INTEGER,INTENT(IN) :: nz_cl |
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| 320 | INTEGER,INTENT(IN) :: nz |
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[1779] | 321 | |
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[1762] | 322 | INTEGER :: NrDims |
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| 323 | INTEGER,DIMENSION (4) :: dims |
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| 324 | TYPE(c_ptr) :: array_adr |
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[1766] | 325 | TYPE(c_ptr) :: second_adr |
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[1762] | 326 | |
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| 327 | dims = 1 |
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| 328 | |
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| 329 | dims = 0 |
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| 330 | NrDims = 3 |
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| 331 | dims(1) = size(array,1) |
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| 332 | dims(2) = size(array,2) |
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| 333 | dims(3) = size(array,3) |
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| 334 | dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1 |
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| 335 | |
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| 336 | array_adr = c_loc(array) |
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| 337 | |
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[1766] | 338 | ! |
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| 339 | !-- In PALM's pointer version, two indices have to be stored internally. |
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| 340 | !-- The active address of the data array is set in swap_timelevel |
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| 341 | IF ( PRESENT( array_2 ) ) THEN |
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| 342 | second_adr = c_loc(array_2) |
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[1779] | 343 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr) |
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[1766] | 344 | ELSE |
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[1779] | 345 | CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr) |
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[1766] | 346 | ENDIF |
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[1762] | 347 | |
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| 348 | return |
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| 349 | END SUBROUTINE PMC_S_Set_DataArray_3d |
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| 350 | |
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| 351 | SUBROUTINE PMC_S_setInd_and_AllocMem (ClientId) |
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[1779] | 352 | |
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| 353 | USE control_parameters, & |
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| 354 | ONLY: message_string |
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| 355 | |
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[1762] | 356 | IMPLICIT none |
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[1779] | 357 | |
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[1786] | 358 | ! |
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| 359 | !-- Naming convention for appendices: _sc -> server to client transfer |
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| 360 | !-- _cs -> client to server transfer |
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| 361 | !-- Send -> Server to client transfer |
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| 362 | !-- Recv -> client to server transfer |
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[1762] | 363 | INTEGER,INTENT(IN) :: ClientId |
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| 364 | |
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[1779] | 365 | INTEGER :: i, istat, ierr, j |
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[1762] | 366 | INTEGER :: arlen, myIndex, tag |
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| 367 | INTEGER :: rCount ! count MPI requests |
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[1764] | 368 | INTEGER(idp) :: bufsize ! Size of MPI data Window |
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[1762] | 369 | TYPE(PeDef),POINTER :: aPE |
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| 370 | TYPE(ArrayDef),POINTER :: ar |
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| 371 | CHARACTER(len=DA_Namelen) :: myName |
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| 372 | INTEGER,DIMENSION(1024) :: req |
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| 373 | Type(c_ptr) :: base_ptr |
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[1786] | 374 | REAL(wp),DIMENSION(:),POINTER,SAVE :: base_array_sc !Base array for server to client transfer |
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| 375 | REAL(wp),DIMENSION(:),POINTER,SAVE :: base_array_cs !Base array for client to server transfer |
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[1762] | 376 | INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize |
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| 377 | |
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[1786] | 378 | ! |
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| 379 | !-- Server to client direction |
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[1762] | 380 | myIndex = 1 |
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| 381 | rCount = 0 |
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| 382 | bufsize = 8 |
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| 383 | |
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[1786] | 384 | ! |
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| 385 | !-- First stride: Compute size and set index |
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[1762] | 386 | do i=1,Clients(ClientId)%inter_npes |
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| 387 | aPE => Clients(ClientId)%PEs(i) |
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| 388 | tag = 200 |
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[1779] | 389 | do j=1,aPE%Nr_arrays |
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| 390 | ar => aPE%array_list(j) |
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| 391 | if(ar%NrDims == 2) then |
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[1786] | 392 | arlen = aPE%NrEle ! 2D |
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[1779] | 393 | else if(ar%NrDims == 3) then |
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[1786] | 394 | arlen = aPE%NrEle * ar%A_dim(4); ! 3D |
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[1762] | 395 | else |
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| 396 | arlen = -1 |
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| 397 | end if |
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[1786] | 398 | ar%SendIndex = myIndex |
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[1762] | 399 | |
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| 400 | tag = tag+1 |
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| 401 | rCount = rCount+1 |
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| 402 | CALL MPI_Isend (myIndex, 1, MPI_INTEGER, i-1, tag, Clients(ClientId)%inter_comm, req(rCount),ierr) |
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| 403 | |
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| 404 | if(rCount == 1024) then ! Maximum of 1024 outstanding requests |
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| 405 | CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr) |
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| 406 | rCount = 0; |
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| 407 | end if |
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| 408 | |
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| 409 | myIndex = myIndex+arlen |
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| 410 | bufsize = bufsize+arlen |
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[1786] | 411 | ar%SendSize = arlen |
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[1762] | 412 | |
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| 413 | end do |
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[1786] | 414 | if(rCount > 0) then ! Wait for all send completed |
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[1762] | 415 | CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr) |
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| 416 | end if |
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| 417 | end do |
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| 418 | |
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[1786] | 419 | ! |
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| 420 | !-- Create RMA (One Sided Communication) window for data buffer server to |
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| 421 | !-- client transfer. |
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| 422 | !-- The buffer of MPI_Get (counter part of transfer) can be PE-local, i.e. |
---|
| 423 | !-- it can but must not be part of the MPI RMA window. |
---|
| 424 | !-- Only one RMA window is required to prepare the data |
---|
| 425 | !-- for server -> client transfer on the server side and |
---|
| 426 | !-- for client -> server transfer on the client side |
---|
| 427 | CALL PMC_Alloc_mem (base_array_sc, bufsize) |
---|
| 428 | Clients(ClientId)%TotalBufferSize = bufsize*wp !Total buffer size in Byte |
---|
[1762] | 429 | |
---|
[1786] | 430 | WinSize = bufsize*wp |
---|
| 431 | CALL MPI_Win_create (base_array_sc, WinSize, wp, MPI_INFO_NULL, & |
---|
| 432 | Clients(ClientId)%intra_comm, Clients(ClientId)%win_server_client, ierr) |
---|
| 433 | CALL MPI_Win_fence (0, Clients(ClientId)%win_server_client, ierr); ! Open Window to set data |
---|
| 434 | ! |
---|
| 435 | !-- Second stride: Set Buffer pointer |
---|
| 436 | do i=1,Clients(ClientId)%inter_npes |
---|
| 437 | aPE => Clients(ClientId)%PEs(i) |
---|
| 438 | do j=1,aPE%Nr_arrays |
---|
| 439 | ar => aPE%array_list(j) |
---|
| 440 | ar%SendBuf = c_loc(base_array_sc(ar%SendIndex)) |
---|
| 441 | if(ar%SendIndex+ar%SendSize > bufsize) then |
---|
[1833] | 442 | write(0,'(a,i4,4i7,1x,a)') 'Server Buffer too small ',i, & |
---|
| 443 | ar%SendIndex,ar%SendSize,ar%SendIndex+ar%SendSize,bufsize,trim(ar%name) |
---|
[1786] | 444 | CALL MPI_Abort (MPI_COMM_WORLD, istat, ierr) |
---|
| 445 | end if |
---|
| 446 | end do |
---|
| 447 | end do |
---|
| 448 | |
---|
| 449 | !-- Client to server direction |
---|
| 450 | |
---|
| 451 | bufsize = 8 |
---|
| 452 | |
---|
| 453 | !-- First stride, Compute size and set index |
---|
| 454 | |
---|
| 455 | do i=1,Clients(ClientId)%inter_npes |
---|
| 456 | aPE => Clients(ClientId)%PEs(i) |
---|
| 457 | tag = 300 |
---|
| 458 | |
---|
| 459 | do j=1,aPE%Nr_arrays |
---|
| 460 | ar => aPE%array_list(j) |
---|
| 461 | |
---|
| 462 | ! Receive Index from client |
---|
| 463 | tag = tag+1 |
---|
| 464 | CALL MPI_Recv (myIndex, 1, MPI_INTEGER, i-1, tag, Clients(ClientId)%inter_comm, MPI_STATUS_IGNORE, ierr) |
---|
| 465 | |
---|
| 466 | if(ar%NrDims == 3) then |
---|
| 467 | bufsize = max(bufsize,aPE%NrEle * ar%A_dim(4)) ! 3D |
---|
| 468 | else |
---|
| 469 | bufsize = max(bufsize,aPE%NrEle) ! 2D |
---|
| 470 | end if |
---|
| 471 | ar%RecvIndex = myIndex |
---|
| 472 | end do |
---|
| 473 | |
---|
| 474 | end do |
---|
| 475 | |
---|
| 476 | !-- Create RMA (One Sided Communication) data buffer |
---|
| 477 | !-- The buffer for MPI_Get can be PE local, i.e. it can but must not be part of the MPI RMA window |
---|
| 478 | |
---|
| 479 | CALL PMC_Alloc_mem (base_array_cs, bufsize, base_ptr) |
---|
[1762] | 480 | Clients(ClientId)%TotalBufferSize = bufsize*wp !Total buffer size in Byte |
---|
| 481 | |
---|
| 482 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) |
---|
| 483 | |
---|
[1786] | 484 | !-- Second stride, Set Buffer pointer |
---|
[1762] | 485 | |
---|
| 486 | do i=1,Clients(ClientId)%inter_npes |
---|
| 487 | aPE => Clients(ClientId)%PEs(i) |
---|
[1786] | 488 | |
---|
[1779] | 489 | do j=1,aPE%Nr_arrays |
---|
| 490 | ar => aPE%array_list(j) |
---|
[1786] | 491 | ar%RecvBuf = base_ptr |
---|
[1762] | 492 | end do |
---|
| 493 | end do |
---|
| 494 | |
---|
| 495 | return |
---|
| 496 | END SUBROUTINE PMC_S_setInd_and_AllocMem |
---|
| 497 | |
---|
| 498 | SUBROUTINE PMC_S_FillBuffer (ClientId, WaitTime) |
---|
| 499 | IMPLICIT none |
---|
[1779] | 500 | INTEGER,INTENT(IN) :: ClientId |
---|
| 501 | REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime |
---|
[1762] | 502 | |
---|
[1779] | 503 | INTEGER :: ip,ij,istat,ierr,j |
---|
| 504 | INTEGER :: myIndex |
---|
| 505 | REAL(wp) :: t1,t2 |
---|
| 506 | TYPE(PeDef),POINTER :: aPE |
---|
| 507 | TYPE(ArrayDef),POINTER :: ar |
---|
| 508 | CHARACTER(len=DA_Namelen) :: myName |
---|
| 509 | INTEGER,DIMENSION(1) :: buf_shape |
---|
| 510 | REAL(wp), POINTER, DIMENSION(:) :: buf |
---|
| 511 | REAL(wp), POINTER, DIMENSION(:,:) :: data_2d |
---|
| 512 | REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d |
---|
[1762] | 513 | |
---|
[1797] | 514 | !-- Synchronization of the model is done in pmci_client_synchronize and pmci_server_synchronize |
---|
| 515 | !-- Therefor the RMA window cann be filled without sychronization at this point and the barrier |
---|
| 516 | !-- is not necessary |
---|
| 517 | !-- Please note that WaitTime has to be set in PMC_S_FillBuffer AND PMC_C_GetBuffer |
---|
[1762] | 518 | |
---|
[1797] | 519 | if(present(WaitTime)) then |
---|
| 520 | t1 = PMC_Time() |
---|
| 521 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) |
---|
| 522 | t2 = PMC_Time() |
---|
| 523 | WaitTime = t2-t1 |
---|
| 524 | end if |
---|
| 525 | |
---|
[1762] | 526 | do ip=1,Clients(ClientId)%inter_npes |
---|
| 527 | aPE => Clients(ClientId)%PEs(ip) |
---|
[1779] | 528 | do j=1,aPE%Nr_arrays |
---|
| 529 | ar => aPE%array_list(j) |
---|
[1762] | 530 | myIndex=1 |
---|
[1779] | 531 | if(ar%NrDims == 2) then |
---|
[1762] | 532 | buf_shape(1) = aPE%NrEle |
---|
| 533 | CALL c_f_pointer(ar%SendBuf, buf, buf_shape) |
---|
| 534 | CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2)) |
---|
| 535 | do ij=1,aPE%NrEle |
---|
| 536 | buf(myIndex) = data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) |
---|
| 537 | myIndex = myIndex+1 |
---|
| 538 | end do |
---|
[1779] | 539 | else if(ar%NrDims == 3) then |
---|
[1762] | 540 | buf_shape(1) = aPE%NrEle*ar%A_dim(4) |
---|
| 541 | CALL c_f_pointer(ar%SendBuf, buf, buf_shape) |
---|
| 542 | CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3)) |
---|
| 543 | do ij=1,aPE%NrEle |
---|
| 544 | buf(myIndex:myIndex+ar%A_dim(4)-1) = data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i) |
---|
| 545 | myIndex = myIndex+ar%A_dim(4) |
---|
| 546 | end do |
---|
| 547 | end if |
---|
| 548 | end do |
---|
| 549 | end do |
---|
| 550 | |
---|
[1786] | 551 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! buffer is filled |
---|
[1762] | 552 | |
---|
| 553 | return |
---|
| 554 | END SUBROUTINE PMC_S_FillBuffer |
---|
| 555 | |
---|
| 556 | SUBROUTINE PMC_S_GetData_from_Buffer (ClientId, WaitTime) |
---|
[1779] | 557 | |
---|
[1762] | 558 | IMPLICIT none |
---|
| 559 | |
---|
[1779] | 560 | INTEGER,INTENT(IN) :: ClientId |
---|
| 561 | REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime |
---|
| 562 | |
---|
[1762] | 563 | !-- local variables |
---|
[1779] | 564 | INTEGER :: ip,ij,istat,ierr,j |
---|
| 565 | INTEGER :: myIndex |
---|
[1786] | 566 | INTEGER :: nr |
---|
[1779] | 567 | REAL(wp) :: t1,t2 |
---|
| 568 | TYPE(PeDef),POINTER :: aPE |
---|
| 569 | TYPE(ArrayDef),POINTER :: ar |
---|
| 570 | CHARACTER(len=DA_Namelen) :: myName |
---|
| 571 | INTEGER,DIMENSION(1) :: buf_shape |
---|
| 572 | REAL(wp), POINTER, DIMENSION(:) :: buf |
---|
| 573 | REAL(wp), POINTER, DIMENSION(:,:) :: data_2d |
---|
| 574 | REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d |
---|
[1786] | 575 | INTEGER :: target_pe |
---|
| 576 | INTEGER(kind=MPI_ADDRESS_KIND) :: target_disp |
---|
[1762] | 577 | |
---|
| 578 | t1 = PMC_Time() |
---|
[1786] | 579 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for client to fill buffer |
---|
| 580 | t2 = PMC_Time()-t1 |
---|
| 581 | if(present(WaitTime)) WaitTime = t2 |
---|
[1762] | 582 | |
---|
[1786] | 583 | ! CALL MPI_Win_fence (0, Clients(ClientId)%win_server_client, ierr) ! Fence might do it, test later |
---|
| 584 | CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for buffer is filled |
---|
| 585 | |
---|
[1762] | 586 | do ip=1,Clients(ClientId)%inter_npes |
---|
| 587 | aPE => Clients(ClientId)%PEs(ip) |
---|
[1779] | 588 | do j=1,aPE%Nr_arrays |
---|
| 589 | ar => aPE%array_list(j) |
---|
[1786] | 590 | |
---|
| 591 | if(ar%RecvIndex < 0) CYCLE |
---|
| 592 | |
---|
| 593 | if(ar%NrDims == 2) then |
---|
| 594 | nr = aPE%NrEle |
---|
| 595 | else if(ar%NrDims == 3) then |
---|
| 596 | nr = aPE%NrEle*ar%A_dim(4) |
---|
| 597 | end if |
---|
| 598 | |
---|
| 599 | buf_shape(1) = nr |
---|
| 600 | CALL c_f_pointer(ar%RecvBuf, buf, buf_shape) |
---|
| 601 | ! |
---|
| 602 | !-- MPI passive target RMA |
---|
| 603 | |
---|
| 604 | if(nr > 0) then |
---|
| 605 | target_disp = ar%RecvIndex-1 |
---|
| 606 | target_pe = ip-1+m_model_npes ! client PEs are located behind server PEs |
---|
| 607 | CALL MPI_Win_lock (MPI_LOCK_SHARED , target_pe, 0, Clients(ClientId)%win_server_client, ierr) |
---|
| 608 | CALL MPI_Get (buf, nr, MPI_REAL, target_pe, target_disp, nr, MPI_REAL, Clients(ClientId)%win_server_client, ierr) |
---|
| 609 | CALL MPI_Win_unlock (target_pe, Clients(ClientId)%win_server_client, ierr) |
---|
| 610 | end if |
---|
| 611 | |
---|
[1762] | 612 | myIndex=1 |
---|
[1779] | 613 | if(ar%NrDims == 2) then |
---|
[1762] | 614 | CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2)) |
---|
| 615 | do ij=1,aPE%NrEle |
---|
| 616 | data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex) |
---|
| 617 | myIndex = myIndex+1 |
---|
| 618 | end do |
---|
[1779] | 619 | else if(ar%NrDims == 3) then |
---|
[1762] | 620 | CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3)) |
---|
| 621 | do ij=1,aPE%NrEle |
---|
| 622 | data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex:myIndex+ar%A_dim(4)-1) |
---|
| 623 | myIndex = myIndex+ar%A_dim(4) |
---|
| 624 | end do |
---|
| 625 | end if |
---|
| 626 | end do |
---|
| 627 | end do |
---|
| 628 | |
---|
| 629 | END SUBROUTINE PMC_S_GetData_from_Buffer |
---|
| 630 | |
---|
| 631 | ! Private SUBROUTINEs |
---|
| 632 | |
---|
| 633 | SUBROUTINE Get_DA_names_from_client (ClientId) |
---|
| 634 | IMPLICIT none |
---|
| 635 | INTEGER,INTENT(IN) :: ClientId |
---|
| 636 | !-- local variables |
---|
| 637 | type(DA_NameDef) :: myName |
---|
| 638 | |
---|
| 639 | ! Get Data Array Description and Name from Client |
---|
| 640 | |
---|
| 641 | do |
---|
| 642 | CALL PMC_Bcast ( myName%couple_index, 0, comm=m_to_client_comm(ClientId)) |
---|
| 643 | if(myName%couple_index == -1) EXIT |
---|
| 644 | CALL PMC_Bcast ( myName%ServerDesc, 0, comm=m_to_client_comm(ClientId)) |
---|
| 645 | CALL PMC_Bcast ( myName%NameOnServer, 0, comm=m_to_client_comm(ClientId)) |
---|
| 646 | CALL PMC_Bcast ( myName%ClientDesc, 0, comm=m_to_client_comm(ClientId)) |
---|
| 647 | CALL PMC_Bcast ( myName%NameOnClient, 0, comm=m_to_client_comm(ClientId)) |
---|
| 648 | |
---|
| 649 | CALL PMC_G_SetName (clients(ClientID), myName%couple_index, myName%NameOnServer ) |
---|
| 650 | end do |
---|
| 651 | |
---|
| 652 | return |
---|
| 653 | END SUBROUTINE Get_DA_names_from_client |
---|
| 654 | |
---|
[1779] | 655 | SUBROUTINE PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr) |
---|
[1762] | 656 | IMPLICIT none |
---|
| 657 | |
---|
| 658 | INTEGER,INTENT(IN) :: ClientId |
---|
| 659 | INTEGER,INTENT(IN) :: NrDims |
---|
| 660 | INTEGER,INTENT(IN),DIMENSION(:) :: dims |
---|
| 661 | TYPE(c_ptr),INTENT(IN) :: array_adr |
---|
[1766] | 662 | TYPE(c_ptr),INTENT(IN),OPTIONAL :: second_adr |
---|
[1762] | 663 | |
---|
| 664 | INTEGER :: i |
---|
| 665 | TYPE(PeDef),POINTER :: aPE |
---|
| 666 | TYPE(ArrayDef),POINTER :: ar |
---|
| 667 | CHARACTER(len=DA_Namelen) :: myName |
---|
| 668 | |
---|
| 669 | ! Set Array for Client interPE 0 |
---|
| 670 | |
---|
| 671 | do i=1,Clients(ClientId)%inter_npes |
---|
| 672 | aPE => Clients(ClientId)%PEs(i) |
---|
[1779] | 673 | ar => aPE%array_list(next_array_in_list) |
---|
[1762] | 674 | ar%NrDims = NrDims |
---|
| 675 | ar%A_dim = dims |
---|
| 676 | ar%data = array_adr |
---|
[1766] | 677 | if(present(second_adr)) then |
---|
| 678 | ar%po_data(1) = array_adr |
---|
| 679 | ar%po_data(2) = second_adr |
---|
| 680 | else |
---|
| 681 | ar%po_data(1) = C_NULL_PTR |
---|
| 682 | ar%po_data(2) = C_NULL_PTR |
---|
| 683 | end if |
---|
[1762] | 684 | end do |
---|
| 685 | |
---|
| 686 | return |
---|
| 687 | END SUBROUTINE PMC_S_SetArray |
---|
| 688 | |
---|
| 689 | |
---|
[1766] | 690 | SUBROUTINE PMC_S_Set_Active_data_array (ClientId,iactive) |
---|
| 691 | IMPLICIT none |
---|
| 692 | |
---|
| 693 | INTEGER,INTENT(IN) :: ClientId |
---|
| 694 | INTEGER,INTENT(IN) :: iactive |
---|
| 695 | |
---|
| 696 | !-- local variables |
---|
[1779] | 697 | INTEGER :: i, ip, j |
---|
[1766] | 698 | TYPE(PeDef),POINTER :: aPE |
---|
| 699 | TYPE(ArrayDef),POINTER :: ar |
---|
| 700 | CHARACTER(len=DA_Namelen) :: myName |
---|
| 701 | |
---|
| 702 | do ip=1,Clients(ClientId)%inter_npes |
---|
| 703 | aPE => Clients(ClientId)%PEs(ip) |
---|
[1779] | 704 | do j=1,aPE%Nr_arrays |
---|
| 705 | ar => aPE%array_list(j) |
---|
[1766] | 706 | if(iactive == 1 .OR. iactive == 2) then |
---|
| 707 | ar%data = ar%po_data(iactive) |
---|
| 708 | end if |
---|
| 709 | end do |
---|
| 710 | end do |
---|
| 711 | |
---|
| 712 | return |
---|
| 713 | END SUBROUTINE PMC_S_Set_Active_data_array |
---|
| 714 | |
---|
| 715 | |
---|
[1762] | 716 | SUBROUTINE Set_PE_index_list (ClientId, myClient,index_list,NrP) |
---|
| 717 | IMPLICIT none |
---|
| 718 | |
---|
| 719 | INTEGER,INTENT(IN) :: ClientId |
---|
| 720 | TYPE(ClientDef),INTENT(INOUT) :: myClient |
---|
| 721 | INTEGER,INTENT(IN),DIMENSION(:,:) :: index_list |
---|
| 722 | INTEGER,INTENT(IN) :: NrP |
---|
| 723 | |
---|
| 724 | !-- local variables |
---|
| 725 | INTEGER :: i,j,ind,ierr,i2 |
---|
| 726 | TYPE(PeDef),POINTER :: aPE |
---|
| 727 | INTEGER :: RemPE |
---|
| 728 | INTEGER,DIMENSION(myClient%inter_npes) :: RemInd |
---|
| 729 | INTEGER,DIMENSION(:),POINTER :: RemIndw |
---|
| 730 | INTEGER,DIMENSION(:),POINTER :: RLdef |
---|
| 731 | INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize |
---|
| 732 | INTEGER :: indWin,indWin2 |
---|
| 733 | |
---|
| 734 | ! First, count entries for every remote client PE |
---|
| 735 | |
---|
| 736 | do i=1,myClient%inter_npes |
---|
| 737 | aPE => myClient%PEs(i) |
---|
| 738 | aPE%NrEle = 0 |
---|
| 739 | end do |
---|
| 740 | |
---|
| 741 | do j=1,NrP ! loop over number of cells coarse grid |
---|
| 742 | RemPE = index_list(5,j)+1 ! Pe number remote PE |
---|
| 743 | aPE => myClient%PEs(RemPE) |
---|
| 744 | aPE% NrEle = aPE% NrEle+1 ! Increment Number of elements for this client Pe |
---|
| 745 | end do |
---|
| 746 | |
---|
| 747 | do i=1,myClient%inter_npes |
---|
| 748 | aPE => myClient%PEs(i) |
---|
| 749 | ALLOCATE(aPE%locInd(aPE%NrEle)) |
---|
| 750 | end do |
---|
| 751 | |
---|
| 752 | RemInd = 0 |
---|
| 753 | |
---|
| 754 | ! Second, Create lists |
---|
| 755 | |
---|
| 756 | do j=1,NrP ! loop over number of cells coarse grid |
---|
| 757 | RemPE = index_list(5,j)+1 ! Pe number remote PE |
---|
| 758 | aPE => myClient%PEs(RemPE) |
---|
| 759 | RemInd(RemPE) = RemInd(RemPE)+1 |
---|
| 760 | ind = RemInd(RemPE) |
---|
| 761 | aPE%locInd(ind)%i = index_list(1,j) |
---|
| 762 | aPE%locInd(ind)%j = index_list(2,j) |
---|
| 763 | end do |
---|
| 764 | |
---|
| 765 | ! Prepare Number of Elements for Client PEs |
---|
| 766 | CALL PMC_Alloc_mem (RLdef, myClient%inter_npes*2) |
---|
| 767 | WinSize = myClient%inter_npes*c_sizeof(i)*2 ! Number of Client PEs * size of INTEGER (i just arbitrary INTEGER) |
---|
| 768 | |
---|
| 769 | CALL MPI_Win_create (RLdef, WinSize, iwp, MPI_INFO_NULL, myClient%intra_comm, indWin, ierr); |
---|
| 770 | CALL MPI_Win_fence (0, indWin, ierr); ! Open Window to set data |
---|
| 771 | |
---|
| 772 | RLdef(1) = 0 ! Index on Remote PE 0 |
---|
| 773 | RLdef(2) = RemInd(1) ! Number of Elements on Rem PE 0 |
---|
| 774 | |
---|
| 775 | do i=2,myClient%inter_npes ! Reserve Buffer for index array |
---|
| 776 | i2 = (i-1)*2+1 |
---|
| 777 | RLdef(i2) = RLdef(i2-2) + RLdef(i2-1)*2 ! Index on Remote PE |
---|
| 778 | RLdef(i2+1) = RemInd(i) ! Number of Elements on Remote PE |
---|
| 779 | end do |
---|
| 780 | |
---|
| 781 | CALL MPI_Win_fence (0, indWin, ierr); ! Close Window to allow client to access data |
---|
| 782 | CALL MPI_Win_fence (0, indWin, ierr); ! Client has retrieved data |
---|
| 783 | |
---|
| 784 | i2 = 2*myClient%inter_npes-1 |
---|
| 785 | WinSize = (RLdef(i2)+RLdef(i2+1))*2 |
---|
| 786 | WinSize = max(WinSize,1) ! Make sure, MPI_Alloc_mem works |
---|
| 787 | |
---|
| 788 | CALL PMC_Alloc_mem (RemIndw, int(WinSize)) |
---|
| 789 | |
---|
| 790 | CALL MPI_Barrier (m_model_comm, ierr) |
---|
| 791 | CALL MPI_Win_create (RemIndw, WinSize*c_sizeof(i), iwp, MPI_INFO_NULL, myClient%intra_comm, indWin2, ierr); |
---|
| 792 | |
---|
| 793 | CALL MPI_Win_fence (0, indWin2, ierr); ! Open Window to set data |
---|
| 794 | do j=1,NrP ! this loop creates the 2D index list |
---|
| 795 | RemPE = index_list(5,j)+1 ! Pe number remote PE |
---|
| 796 | aPE => myClient%PEs(RemPE) |
---|
| 797 | i2 = RemPE*2-1 |
---|
| 798 | ind = RLdef(i2)+1 |
---|
| 799 | RemIndw(ind) = index_list(3,j) |
---|
| 800 | RemIndw(ind+1) = index_list(4,j) |
---|
| 801 | RLdef(i2) = RLdef(i2)+2 |
---|
| 802 | end do |
---|
| 803 | CALL MPI_Win_fence (0, indWin2, ierr); !all data set |
---|
| 804 | |
---|
| 805 | CALL MPI_Barrier(myClient%intra_comm, ierr) ! Dont know why, but this barrier is necessary before we can free the windows |
---|
| 806 | |
---|
| 807 | CALL MPI_Win_free(indWin, ierr) |
---|
| 808 | CALL MPI_Win_free(indWin2, ierr) |
---|
| 809 | |
---|
| 810 | ! Sollte funktionieren, Problem mit MPI implementation |
---|
| 811 | ! https://www.lrz.de/services/software/parallel/mpi/onesided |
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| 812 | ! CALL MPI_Free_mem (RemIndw, ierr) |
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| 813 | |
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| 814 | return |
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| 815 | END SUBROUTINE Set_PE_index_list |
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| 816 | |
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[1764] | 817 | #endif |
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[1762] | 818 | END MODULE pmc_server |
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