53 lines
1.6 KiB
C
53 lines
1.6 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 "H5hut.h"
|
|
|
|
#define DEFAULT_VERBOSITY H5_VERBOSE_DEFAULT
|
|
|
|
#define FNAME "example_strided.h5"
|
|
|
|
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);
|
|
|
|
h5_file_t file = H5OpenFile (FNAME, H5_O_RDONLY, H5_PROP_DEFAULT);
|
|
|
|
H5SetStep (file, 0);
|
|
|
|
// Get number of particles in datasets and allocate memory
|
|
h5_int64_t num_particles = H5PartGetNumParticles (file);
|
|
h5_float64_t* data = calloc (6*num_particles, sizeof (*data));
|
|
|
|
// set number of particles and memory stride
|
|
H5PartSetNumParticlesStrided (file, num_particles, 6);
|
|
|
|
// read data
|
|
H5PartReadDataFloat64 (file, "x", data+0);
|
|
H5PartReadDataFloat64 (file, "y", data+1);
|
|
H5PartReadDataFloat64 (file, "z", data+2);
|
|
H5PartReadDataFloat64 (file, "px", data+3);
|
|
H5PartReadDataFloat64 (file, "py", data+4);
|
|
H5PartReadDataFloat64 (file, "pz", data+5);
|
|
|
|
H5CloseFile (file);
|
|
return MPI_Finalize ();
|
|
}
|