55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
|
|
Copyright (c) 2006-2015, The Regents of the University of California,
|
|
through Lawrence Berkeley National Laboratory (subject to receipt of any
|
|
required approvals from the U.S. Dept. of Energy) and the Paul Scherrer
|
|
Institut (Switzerland). All rights reserved.
|
|
|
|
License: see file COPYING in top level of source distribution.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include "H5hut.h"
|
|
|
|
#define DEFAULT_VERBOSITY H5_VERBOSE_DEFAULT
|
|
|
|
#define FNAME "example_setnparticles.h5"
|
|
#define NUM_PARTICLES 3
|
|
|
|
int
|
|
main (
|
|
int argc,
|
|
char* argv[]
|
|
){
|
|
h5_int64_t verbosity = DEFAULT_VERBOSITY;
|
|
|
|
// initialize MPI & H5hut
|
|
MPI_Init (&argc, &argv);
|
|
MPI_Comm comm = MPI_COMM_WORLD;
|
|
int rank = 0;
|
|
MPI_Comm_rank (comm, &rank);
|
|
|
|
H5AbortOnError ();
|
|
H5SetVerbosityLevel (verbosity);
|
|
|
|
// create fake data
|
|
h5_int32_t data[NUM_PARTICLES];
|
|
h5_int64_t num_particles = NUM_PARTICLES;
|
|
for (int i = 0; i < num_particles; i++) {
|
|
data[i] = i + num_particles * rank;
|
|
}
|
|
|
|
// open file and create step #0
|
|
h5_file_t file = H5OpenFile (FNAME, H5_O_WRONLY, H5_PROP_DEFAULT);
|
|
H5SetStep (file, 0);
|
|
|
|
// define number of items this process will write
|
|
H5PartSetNumParticles (file, num_particles);
|
|
|
|
// write data
|
|
H5PartWriteDataInt32 (file, "data", data);
|
|
|
|
// done
|
|
H5CloseFile(file);
|
|
return MPI_Finalize ();
|
|
}
|