60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
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Copyright (c) 2006-2015, The Regents of the University of California,
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through Lawrence Berkeley National Laboratory (subject to receipt of any
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required approvals from the U.S. Dept. of Energy) and the Paul Scherrer
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Institut (Switzerland). All rights reserved.
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License: see file COPYING in top level of source distribution.
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*/
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#include "H5hut.h"
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#define DEFAULT_VERBOSITY H5_VERBOSE_DEFAULT
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#define FNAME "example_core_vfd"
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#define DATASIZE 32
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int
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main (
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int argc, char* argv[]
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){
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h5_int64_t verbosity = DEFAULT_VERBOSITY;
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// initialize MPI & H5hut
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int comm_rank = 0;
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int comm_size = 1;
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MPI_Init (&argc, &argv);
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MPI_Comm comm = MPI_COMM_WORLD;
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MPI_Comm_rank (comm, &comm_rank);
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MPI_Comm_size (comm, &comm_size);
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H5AbortOnError ();
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H5SetVerbosityLevel (verbosity);
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// open file and go to step#0
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char fname[64];
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sprintf (fname, "%s.%d.h5", FNAME, comm_rank);
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h5_prop_t prop = H5CreateFileProp ();
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H5SetPropFileCoreVFD (prop);
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h5_file_t file = H5OpenFile (fname, H5_O_RDONLY, prop);
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H5SetStep (file, 0);
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h5_int32_t data[DATASIZE];
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H5PartSetNumParticles(file, DATASIZE);
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// create fake data
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for (int i = 0; i < DATASIZE; i++) {
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data[i] = i + comm_rank * DATASIZE;
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}
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// write the data
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H5PartWriteDataInt32 (file, "data", data);
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H5CloseFile (file);
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MPI_Finalize ();
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return H5_SUCCESS;
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}
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