gsell
542daf7fc2
- define dummy MPI macros to be used in serial compilation, closing #10 - cleanup some "unused variable" warnings - fix some format warnings, using C99 format macros
74 lines
2.4 KiB
C
74 lines
2.4 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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#include "examples.h"
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// name of output file
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const char* fname = "example_strided.h5";
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// H5hut verbosity level
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const h5_int64_t h5_verbosity = H5_VERBOSE_DEFAULT;
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// number of particles we are going to write per core
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const h5_int64_t num_particles = 99;
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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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// 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 comm_rank = 0;
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MPI_Comm_rank (comm, &comm_rank);
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H5AbortOnError ();
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H5SetVerbosityLevel (h5_verbosity);
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// open file and create first step
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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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// create fake data
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h5_float64_t data[6*num_particles];
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h5_int64_t id[num_particles];
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for (int i = 0; i < num_particles; i++) {
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data [6*i + 0] = 0.0 + i + num_particles * comm_rank;
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data [6*i + 1] = 0.1 + i + num_particles * comm_rank;
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data [6*i + 2] = 0.2 + i + num_particles * comm_rank;
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data [6*i + 3] = 0.3 + i + num_particles * comm_rank;
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data [6*i + 4] = 0.4 + i + num_particles * comm_rank;
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data [6*i + 5] = 0.5 + i + num_particles * comm_rank;
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id [i] = i + num_particles * comm_rank;
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}
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// define number of items this processor will write and set the
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// in-memory striding
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H5PartSetNumParticlesStrided (file, num_particles, 6);
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// write strided data
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H5PartWriteDataFloat64 (file, "x", data+0);
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H5PartWriteDataFloat64 (file, "y", data+1);
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H5PartWriteDataFloat64 (file, "z", data+2);
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H5PartWriteDataFloat64 (file, "px", data+3);
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H5PartWriteDataFloat64 (file, "py", data+4);
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H5PartWriteDataFloat64 (file, "pz", data+5);
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// disable striding to write the ID's
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H5PartSetNumParticles (file, num_particles);
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H5PartWriteDataInt64 (file, "id", id);
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// cleanup
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H5CloseFile (file);
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MPI_Finalize ();
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return 0;
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}
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