55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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Copyright (c) 2006-2013, 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 <stdlib.h>
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#include "H5hut.h"
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#define DEFAULT_VERBOSITY H5_VERBOSE_DEFAULT
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#define FNAME "example_setnparticles.h5"
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#define NUM_PARTICLES 3
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int
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main (
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int argc,
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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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MPI_Init (&argc, &argv);
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MPI_Comm comm = MPI_COMM_WORLD;
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int rank = 0;
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MPI_Comm_rank (comm, &rank);
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H5AbortOnError ();
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H5SetVerbosityLevel (verbosity);
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// create fake data
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h5_int32_t data[NUM_PARTICLES];
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h5_int64_t num_particles = NUM_PARTICLES;
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for (int i = 0; i < num_particles; i++) {
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data[i] = i + num_particles * rank;
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}
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// open file and create step #0
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h5_file_t file = H5OpenFile (FNAME, H5_O_WRONLY, H5_PROP_DEFAULT);
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H5SetStep (file, 0);
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// define number of items this process will write
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H5PartSetNumParticles (file, num_particles);
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// write data
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H5PartWriteDataInt32 (file, "data", data);
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// done
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H5CloseFile(file);
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return MPI_Finalize ();
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}
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