| 1 | !!****if* source/IO/IOMain/hdf5/parallel/PM/io_readData
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| 2 | !!
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| 3 | !! NAME
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| 4 | !!
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| 5 | !! io_readData
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| 6 | !!
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| 7 | !!
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| 8 | !! SYNOPSIS
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| 9 | !!
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| 10 | !! io_readData()
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| 11 | !!
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| 12 | !!
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| 13 | !! DESCRIPTION
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| 14 | !!
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| 15 | !! This is the reading counterpart to io_writeData. It reads an HDF5
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| 16 | !! file and distributes it to the processors to restart a simulation.
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| 17 | !!
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| 18 | !! All reading is done using parallel HDF5 -- no explicit data movement
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| 19 | !! is used.
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| 20 | !!
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| 21 | !!
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| 22 | !! ARGUMENTS
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| 23 | !!
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| 24 | !!***
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| 25 |
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| 26 | !!REORDER(5): unk, facevar[xyz], unkBuf, unkBufGC, face[XYZ]Buf
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| 27 |
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| 28 | #ifdef DEBUG_ALL
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| 29 | #define DEBUG_IO
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| 30 | #endif
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| 31 |
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| 32 | #include "constants.h"
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| 33 | #include "Flash.h"
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| 34 | #include "io_flash.h"
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| 35 |
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| 36 | subroutine io_readData()
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| 37 |
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| 38 |
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| 39 |
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| 40 | use Grid_data, ONLY : gr_globalNumBlocks, gr_nToLeft, &
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| 41 | gr_globalOffset, gr_gid
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| 42 | use Simulation_interface, ONLY : Simulation_mapStrToInt
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| 43 | use Driver_interface, ONLY : Driver_abortFlash
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| 44 | use Logfile_interface, ONLY : Logfile_stamp
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| 45 | use Grid_interface, ONLY : Grid_putLocalNumBlks, Grid_getBlkIndexLimits, &
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| 46 | Grid_receiveInputData
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| 47 |
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| 48 | use IO_data, ONLY : io_globalMe, io_globalComm,&
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| 49 | io_baseName, io_checkpointFileNumber, &
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| 50 | io_realParmNames, io_realParmValues, io_numRealParms, &
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| 51 | io_intParmNames, io_intParmValues, io_numIntParms, &
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| 52 | io_logParmNames, io_logParmValues, io_numLogParms, &
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| 53 | io_strParmNames, io_strParmValues, io_numStrParms, &
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| 54 | io_realScalarNames, io_realScalarValues, io_numRealScalars, &
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| 55 | io_intScalarNames, io_intScalarValues, io_numIntScalars, &
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| 56 | io_logScalarNames, io_logScalarValues, io_numLogScalars, &
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| 57 | io_strScalarNames, io_strScalarValues, io_numStrScalars, &
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| 58 | io_logToIntScalarValues, io_logToIntParmValues, io_unklabels, &
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| 59 | io_ilo, io_ihi, io_jlo, io_jhi, io_klo, io_khi, &
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| 60 | io_outputSplitNum, io_comm, io_chkptFileID, &
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| 61 | io_chkGuardCellsInput, io_chkGuardCellsOutput, &
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| 62 | io_faceXVarLabels, io_faceYVarLabels, io_faceZVarLabels,&
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| 63 | io_realParmNamesPrev, io_realParmValuesPrev, io_numRealParmsPrev, &
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| 64 | io_intParmNamesPrev, io_intParmValuesPrev, io_numIntParmsPrev, &
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| 65 | io_logParmNamesPrev, io_logParmValuesPrev, io_numLogParmsPrev, &
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| 66 | io_strParmNamesPrev, io_strParmValuesPrev, io_numStrParmsPrev, &
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| 67 | io_logToIntParmValuesPrev, io_splitNumBlks, &
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| 68 | io_unklabelsGlobal, io_meshMe, io_meshNumProcs, tree_data_t
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| 69 | use IO_interface, ONLY : IO_getScalar
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| 70 |
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| 71 | #ifdef FLASH_GRID_PARAMESH
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| 72 | use tree, ONLY : maxblocks_tr, nfaces, nchild, nodetype, &
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| 73 | lrefine, bnd_box, coord, bsize, neigh, parent, child
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| 74 | #ifdef FLASH_GRID_PARAMESH3OR4
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| 75 | use tree, ONLY : MFLAGS, which_child, bflags
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| 76 | use Grid_data, ONLY : gr_gsurr_blks
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| 77 | #endif
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| 78 | #endif
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| 79 | use io_typeInterface, ONLY : io_xfer_tree_data
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| 80 | use physicaldata, ONLY : unk, facevarx, facevary, facevarz
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| 81 |
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| 82 |
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| 83 | implicit none
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| 84 | type(tree_data_t) :: tree_data
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| 85 |
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| 86 | #include "Flash_mpi.h"
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| 87 |
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| 88 |
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| 89 |
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| 90 |
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| 91 |
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| 92 | integer :: localNumBlocks, ngid
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| 93 | integer :: alocalNumBlocks
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| 94 |
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| 95 |
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| 96 | character (len=4) :: fnumStr
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| 97 | character (len=MAX_STRING_LENGTH) :: filename
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| 98 | character(len=MAX_STRING_LENGTH), save, allocatable, dimension(:,:) :: strBuff
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| 99 |
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| 100 |
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| 101 | integer :: blockID, procBlocks, ierr
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| 102 |
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| 103 | integer :: i, lb, j, xx, yy, alnblocks, u
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| 104 |
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| 105 | integer, allocatable :: procnumber(:) !dimension(localNumBlocks)
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| 106 |
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| 107 | integer :: realGlobalNumBlocks
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| 108 | ! real :: unkBufGC(1,GRID_IHI_GC,GRID_JHI_GC,GRID_KHI_GC,MAXBLOCKS)
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| 109 | real,allocatable :: unkBufGC(:,:,:,:,:)
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| 110 | real,allocatable :: unkBuf(:,:,:,:,:)
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| 111 | real,allocatable :: faceXBuf(:,:,:,:,:)
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| 112 | real,allocatable :: faceYBuf(:,:,:,:,:)
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| 113 | real,allocatable :: faceZBuf(:,:,:,:,:)
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| 114 |
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| 115 | integer :: blkLimits(2,MDIM), blkLimitsGC(2, MDIM)
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| 116 |
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| 117 | integer :: splitOffset, localOffset
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| 118 | integer :: doread
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| 119 |
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| 120 | integer :: presentDims
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| 121 | integer, parameter :: xferType = IO_READ_XFER, libType = IO_FILE_HDF5
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| 122 |
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| 123 |
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| 124 | call io_getOutputName(io_checkpointFileNumber, "hdf5", "_chk_", filename, .false.)
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| 125 |
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| 126 |
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| 127 | call io_h5open_file_for_read(io_chkptFileID, filename, io_comm, io_outputSplitNum)
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| 128 |
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| 129 | if (io_globalMe == MASTER_PE) then
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| 130 | allocate (strBuff(2,2))
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| 131 | print *, 'file: ', trim(filename), ' opened for restart'
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| 132 | write (strBuff(1,1), "(A)") "type"
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| 133 | write (strBuff(1,2), "(A)") "checkpoint"
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| 134 | write (strBuff(2,1), "(A)") "name"
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| 135 | write (strBuff(2,2), "(A)") trim(filename)
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| 136 | call Logfile_stamp( strBuff, 2, 2, "[io_readData]")
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| 137 | end if
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| 138 | if (allocated(strBuff)) deallocate(strBuff)
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| 139 |
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| 140 |
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| 141 | !!read in the total number of blocks, time, and timestep
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| 142 | call io_h5read_header(io_globalMe, &
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| 143 | io_chkptFileID, &
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| 144 | io_unklabels, &
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| 145 | io_outputSplitNum)
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| 146 |
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| 147 |
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| 148 |
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| 149 | call io_prepareListsRead()
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| 150 |
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| 151 |
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| 152 |
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| 153 | call io_h5read_runtime_parameters(io_chkptFileID, &
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| 154 | io_numRealParmsPrev, &
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| 155 | io_realParmNamesPrev, &
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| 156 | io_realParmValuesPrev, &
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| 157 | io_numIntParmsPrev, &
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| 158 | io_intParmNamesPrev, &
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| 159 | io_intParmValuesPrev, &
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| 160 | io_numStrParmsPrev, &
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| 161 | io_strParmNamesPrev, &
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| 162 | io_strParmValuesPrev, &
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| 163 | io_numLogParmsPrev, &
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| 164 | io_logParmNamesPrev, &
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| 165 | io_logToIntParmValuesPrev)
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| 166 |
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| 167 |
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| 168 |
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| 169 | call io_h5read_scalars(io_chkptFileID, &
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| 170 | io_numRealScalars, &
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| 171 | io_realScalarNames, &
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| 172 | io_realScalarValues, &
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| 173 | io_numIntScalars, &
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| 174 | io_intScalarNames, &
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| 175 | io_intScalarValues, &
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| 176 | io_numStrScalars, &
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| 177 | io_strScalarNames, &
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| 178 | io_strScalarValues, &
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| 179 | io_numLogScalars, &
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| 180 | io_logScalarNames, &
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| 181 | io_logToIntScalarValues)
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| 182 |
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| 183 |
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| 184 | call io_finalizeListsRead()
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| 185 |
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| 186 |
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| 187 | call IO_getScalar("globalNumBlocks", gr_globalNumBlocks)
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| 188 | call io_checkBlockShape(gr_globalNumBlocks)
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| 189 | if (io_outputSplitNum /= 1) then
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| 190 | call IO_getScalar("splitNumBlocks", io_splitNumBlks)
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| 191 | else
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| 192 | io_splitNumBlks = gr_globalNumBlocks
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| 193 | endif
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| 194 |
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| 195 |
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| 196 | !---------------------------------------------------------------------------
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| 197 | ! compute the number of blocks on each processor -- this will be used to
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| 198 | ! get the offset into the file for the parallel read
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| 199 | !---------------------------------------------------------------------------
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| 200 |
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| 201 | ! compute the approximate number of blocks per processor
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| 202 | alnblocks = int(gr_globalNumBlocks/io_meshNumProcs) + 1
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| 203 |
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| 204 | ! check for error -- if the number of blocks we want to put on each
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| 205 | ! processor is greater than maxblocks, then abort
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| 206 | if (alnblocks .GT. MAXBLOCKS) then
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| 207 |
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| 208 | print *
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| 209 | print *, '********** ERROR in READ_DATA ************'
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| 210 | print *
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| 211 | print *,' Number of blocks per processor exceeds maxblocks.'
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| 212 | print *,' Suggest you reset maxblocks to a larger number or'
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| 213 | print *,' run on a larger number of processors.'
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| 214 | print *,' globalNumBlocks, io_meshNumProcs = ', gr_globalNumBlocks, io_meshNumProcs
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| 215 | print *
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| 216 |
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| 217 | call Driver_abortFlash('[io_readData] ERROR: num blocks per proc exceeds maxblocks')
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| 218 |
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| 219 | end if
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| 220 |
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| 221 | ! figure out the excess blocks
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| 222 | yy = (io_meshNumProcs*alnblocks) - gr_globalNumBlocks
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| 223 | xx = io_meshNumProcs - yy
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| 224 |
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| 225 | ! loop over all the processor numbers and figure out how many blocks are
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| 226 | ! stored to the left of the processor -- this is a little tricky
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| 227 |
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| 228 | gr_nToLeft(0) = 0
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| 229 |
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| 230 | do i = 0, io_meshNumProcs - 2
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| 231 | if (i .LT. xx) then
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| 232 | procBlocks = alnblocks
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| 233 | else
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| 234 | procBlocks = alnblocks - 1
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| 235 | endif
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| 236 |
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| 237 | if (alnblocks .EQ. 0) then
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| 238 | if (i .LT. gr_globalNumBlocks) then
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| 239 | procBlocks = 1
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| 240 | else
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| 241 | procBlocks = 0
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| 242 | end if
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| 243 | end if
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| 244 |
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| 245 | ! we have the number of blocks on proc i, the number of blocks on i+1 is
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| 246 | ! the number of blocks on i + the number of blocks left of i
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| 247 | if (i .EQ. 0) then
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| 248 | gr_nToLeft(i+1) = procBlocks
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| 249 | else
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| 250 | gr_nToLeft(i+1) = procBlocks + gr_nToLeft(i)
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| 251 | endif
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| 252 | enddo
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| 253 |
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| 254 | ! figure out how many blocks are on the current proc.
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| 255 | if (io_meshMe < xx) then
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| 256 | localNumBlocks = alnblocks
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| 257 | else
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| 258 | localNumBlocks = alnblocks - 1
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| 259 | endif
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| 260 |
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| 261 | if (alnblocks .EQ. 0) then
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| 262 | if (io_meshMe < gr_globalNumBlocks) then
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| 263 | localNumBlocks = 1
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| 264 | else
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| 265 | localNumBlocks = 0
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| 266 | end if
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| 267 | end if
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| 268 |
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| 269 | ! compute the offset into the dataspace in the HDF5 file
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| 270 | gr_globalOffset = gr_nToLeft(io_meshMe)
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| 271 |
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| 272 |
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| 273 |
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| 274 | call Grid_putLocalNumBlks(localNumBlocks)
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| 275 |
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| 276 | !find our offset into a potentially split file:
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| 277 | if(io_outputSplitNum > 1) then
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| 278 | call MPI_ALLREDUCE(gr_globalOffset, splitOffset,1,FLASH_INTEGER,&
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| 279 | MPI_MIN, io_comm, ierr)
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| 280 | localOffset = gr_globalOffset - splitOffset
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| 281 |
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| 282 | else
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| 283 | localOffset = gr_globalOffset
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| 284 | end if
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| 285 |
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| 286 |
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| 287 | call io_h5read_present_dims(io_chkptFileID, presentDims)
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| 288 |
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| 289 |
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| 290 |
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| 291 | tree_data % bnd_box => bnd_box
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| 292 | tree_data % coord => coord
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| 293 | tree_data % bsize => bsize
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| 294 | tree_data % gid => gr_gid
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| 295 | tree_data % nodetype => nodetype
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| 296 | tree_data % lrefine => lrefine
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| 297 | # ifdef FLASH_GRID_PARAMESH3OR4
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| 298 | tree_data % bflags => bflags
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| 299 | tree_data % which_child => which_child
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| 300 | # else
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| 301 | nullify(tree_data % bflags)
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| 302 | nullify(tree_data % which_child)
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| 303 | # endif
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| 304 | nullify(tree_data % procnumber)
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| 305 | # ifdef FLASH_GRID_PARAMESH4DEV_SURR_BLKS_OPTION
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| 306 | tree_data % gsurr_blks => gr_gsurr_blks
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| 307 | # else
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| 308 | nullify(tree_data % gsurr_blks)
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| 309 | # endif
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| 310 |
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| 311 | call io_h5read_present_dims(io_chkptFileID, presentDims)
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| 312 |
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| 313 | call io_xfer_tree_data(tree_data, &
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| 314 | io_chkptFileID, libType, xferType, &
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| 315 | localNumBlocks, localOffset, presentDims)
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| 316 |
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| 317 | !Extract data from gr_gid and gr_gsurr_blks arrays
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| 318 | call Grid_receiveInputData(localNumBlocks, alnblocks, xx)
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| 319 |
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| 320 |
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| 321 |
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| 322 |
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| 323 | allocate(unkBuf(1, NXB, NYB, NZB, MAXBLOCKS))
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| 324 |
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| 325 | if (io_chkGuardCellsInput) then ! currently, blkLimits is not used otherwise
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| 326 | blockID = 1
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| 327 | call Grid_getBlkIndexLimits(blockID, blkLimits, blkLimitsGC)
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| 328 | #ifndef FL_NON_PERMANENT_GUARDCELLS
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| 329 | blkLimits = blkLimitsGC
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| 330 | #endif
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| 331 | end if
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| 332 |
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| 333 | do u=1, ubound(io_unklabelsGlobal,1)
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| 334 | call Simulation_mapStrToInt(io_unklabelsGlobal(u),i,MAPBLOCK_UNK)
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| 335 | doread = 0
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| 336 | if(i /= NONEXISTENT) doread = 1
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| 337 |
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| 338 | if(io_chkGuardCellsInput) then
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| 339 | allocate(unkBufGC(1,GRID_IHI_GC,GRID_JHI_GC,GRID_KHI_GC,MAXBLOCKS))
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| 340 | unkBufGC(1,:GRID_IHI_GC,:GRID_JHI_GC,:GRID_KHI_GC,1:localNumBlocks) = 0.0
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| 341 | call io_h5read_unknowns(io_chkptFileID, &
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| 342 | GRID_IHI_GC, &
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| 343 | GRID_JHI_GC, &
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| 344 | GRID_KHI_GC, &
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| 345 | unkBufGC, &
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| 346 | io_unklabelsGlobal(u), &
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| 347 | localNumBlocks, &
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| 348 | io_splitNumBlks, &
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| 349 | localOffset, &
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| 350 | doread)
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| 351 |
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| 352 | if(i /= NONEXISTENT) then
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| 353 | unk(i,:,:,:,1:MAXBLOCKS) = &
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| 354 | unkBufGC(1,blkLimits(LOW,IAXIS):blkLimits(HIGH,IAXIS), &
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| 355 | blkLimits(LOW,JAXIS):blkLimits(HIGH,JAXIS), &
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| 356 | blkLimits(LOW,KAXIS):blkLimits(HIGH,KAXIS), 1:MAXBLOCKS)
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| 357 | end if
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| 358 | deallocate(unkBufGC)
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| 359 | else
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| 360 | unkBuf(1,:,:,:,1:localNumBlocks) = 0.0
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| 361 | call io_h5read_unknowns(io_chkptFileID, &
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| 362 | NXB, &
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| 363 | NYB, &
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| 364 | NZB, &
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| 365 | unkBuf, &
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| 366 | io_unklabelsGlobal(u), &
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| 367 | localNumBlocks, &
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| 368 | io_splitNumBlks, &
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| 369 | localOffset, &
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| 370 | doread)
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| 371 |
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| 372 | if(i /= NONEXISTENT) then
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| 373 | unk(i,io_ilo:io_ihi, io_jlo:io_jhi, io_klo:io_khi,1:MAXBLOCKS) = &
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| 374 | unkBuf(1,1:NXB,1:NYB,1:NZB,1:MAXBLOCKS)
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| 375 | end if
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| 376 | end if
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| 377 | enddo
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| 378 |
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| 379 | deallocate(unkBuf)
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| 380 | #ifdef FLASH_GRID_PARAMESH3OR4
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| 381 | #if(NFACE_VARS>0)
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| 382 |
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| 383 |
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| 384 | allocate(faceXBuf(1,1:NXB+1,1:NYB,1:NZB,1:MAXBLOCKS))
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| 385 | if (NDIM .gt. 1) allocate(faceYBuf(1,1:NXB,1:NYB+1,1:NZB,1:MAXBLOCKS))
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| 386 | if (NDIM .gt. 2) allocate(faceZBuf(1,1:NXB,1:NYB,1:NZB+1,1:MAXBLOCKS))
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| 387 |
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| 388 | doread = 1
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| 389 | do i = 1,NFACE_VARS
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| 390 |
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| 391 | call io_h5read_unknowns(io_chkptFileID, &
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| 392 | NXB+1, &
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| 393 | NYB, &
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| 394 | NZB, &
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| 395 | faceXBuf, &
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| 396 | io_faceXVarLabels(i), &
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| 397 | localNumBlocks, &
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| 398 | io_splitNumBlks, &
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| 399 | localOffset, &
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| 400 | doread)
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| 401 |
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| 402 | facevarx(i,io_ilo:io_ihi+1,io_jlo:io_jhi,io_klo:io_khi,1:MAXBLOCKS) = &
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| 403 | faceXBuf(1,1:NXB+1,1:NYB,1:NZB,1:MAXBLOCKS)
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| 404 |
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| 405 | if (NDIM .gt. 1) then
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| 406 |
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| 407 | call io_h5read_unknowns(io_chkptFileID, &
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| 408 | NXB, &
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| 409 | NYB+1, &
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| 410 | NZB, &
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| 411 | faceYBuf, &
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| 412 | io_faceYVarLabels(i), &
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| 413 | localNumBlocks, &
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| 414 | io_splitNumBlks, &
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| 415 | localOffset, &
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| 416 | doread)
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| 417 |
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| 418 | facevary(i,io_ilo:io_ihi,io_jlo:io_jhi+1,io_klo:io_khi,1:MAXBLOCKS) = &
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| 419 | faceYBuf(1,1:NXB,1:NYB+1,1:NZB,1:MAXBLOCKS)
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| 420 |
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| 421 | end if
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| 422 |
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| 423 | if (NDIM .gt. 2) then
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| 424 | call io_h5read_unknowns(io_chkptFileID, &
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| 425 | NXB, &
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| 426 | NYB, &
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| 427 | NZB+1, &
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|---|
| 428 | faceZBuf, &
|
|---|
| 429 | io_faceZVarLabels(i), &
|
|---|
| 430 | localNumBlocks, &
|
|---|
| 431 | io_splitNumBlks, &
|
|---|
| 432 | localOffset, &
|
|---|
| 433 | doread)
|
|---|
| 434 |
|
|---|
| 435 | facevarz(i,io_ilo:io_ihi,io_jlo:io_jhi,io_klo:io_khi+1,1:MAXBLOCKS) = &
|
|---|
| 436 | faceZBuf(1,1:NXB,1:NYB,1:NZB+1,1:MAXBLOCKS)
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|---|
| 437 |
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|---|
| 438 | end if
|
|---|
| 439 |
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|---|
| 440 | end do
|
|---|
| 441 |
|
|---|
| 442 | deallocate(faceXBuf)
|
|---|
| 443 | if (NDIM .gt. 1) deallocate(faceYBuf)
|
|---|
| 444 | if (NDIM .gt. 2) deallocate(faceZBuf)
|
|---|
| 445 |
|
|---|
| 446 | #endif
|
|---|
| 447 | #endif
|
|---|
| 448 |
|
|---|
| 449 | if (io_globalMe == MASTER_PE) &
|
|---|
| 450 | print *, 'read_data: read ', gr_globalNumBlocks, ' blocks.'
|
|---|
| 451 |
|
|---|
| 452 |
|
|---|
| 453 | if (io_globalMe == MASTER_PE) then
|
|---|
| 454 | allocate (strBuff(2, 2))
|
|---|
| 455 | write (strBuff(1,1), "(A)") "type"
|
|---|
| 456 | write (strBuff(1,2), "(A)") "checkpoint"
|
|---|
| 457 | write (strBuff(2,1), "(A)") "name"
|
|---|
| 458 | write (strBuff(2,2), "(A)") trim(filename)
|
|---|
| 459 | call Logfile_stamp( strBuff, 2, 2, "[io_readData] file_closed")
|
|---|
| 460 | if (allocated(strBuff)) deallocate(strBuff)
|
|---|
| 461 | end if
|
|---|
| 462 |
|
|---|
| 463 |
|
|---|
| 464 | call MPI_BARRIER (io_globalComm, ierr)
|
|---|
| 465 | if (io_globalMe == MASTER_PE) &
|
|---|
| 466 | print *, 'io_readData: finished reading input file.'
|
|---|
| 467 |
|
|---|
| 468 | return
|
|---|
| 469 | end subroutine io_readData
|
|---|
