100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/* This source code was developed under the Mochi project
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* (https://www.mcs.anl.gov/research/projects/mochi), supported by the U.S.
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* Department of Energy, Office of Science, under contract DE-AC02-06CH11357.
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*/
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#include "h5rados_example.h"
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#include <time.h>
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int main(int argc, char *argv[]) {
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rados_t cluster;
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char *pool = "mypool";
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hid_t file = -1, dset = -1, fapl = -1;
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int buf[4][6];
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int i, j;
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(void)MPI_Init(&argc, &argv);
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/* Seed random number generator */
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srand(time(NULL));
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if(argc != 3)
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PRINTF_ERROR("argc != 3\n");
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if(rados_create(&cluster, NULL) < 0)
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ERROR;
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if(rados_conf_read_file(cluster, CEPH_CONFIG_FILE) < 0)
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ERROR;
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/* Initialize VOL */
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if(H5VLrados_init(cluster, pool) < 0)
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ERROR;
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/* Set up FAPL */
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if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
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ERROR;
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if(H5Pset_fapl_rados(fapl, MPI_COMM_WORLD, MPI_INFO_NULL) < 0)
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ERROR;
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if(H5Pset_all_coll_metadata_ops(fapl, true) < 0)
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ERROR;
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/* Open file */
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if((file = H5Fopen(argv[1], H5F_ACC_RDWR, fapl)) < 0)
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ERROR;
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/* Open dataset */
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if((dset = H5Dopen2(file, argv[2], H5P_DEFAULT)) < 0)
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ERROR;
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/* Fill and print buffer */
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printf("Writing data. Buffer is:\n");
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for(i = 0; i < 4; i++) {
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for(j = 0; j < 6; j++) {
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buf[i][j] = rand() % 10;
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printf("%d ", buf[i][j]);
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}
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printf("\n");
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}
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/* Write data */
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if(H5Dwrite(dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
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ERROR;
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/* Close */
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if(H5Dclose(dset) < 0)
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ERROR;
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if(H5Fclose(file) < 0)
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ERROR;
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if(H5Pclose(fapl) < 0)
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ERROR;
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printf("Success\n");
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(void)MPI_Finalize();
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return 0;
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error:
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H5E_BEGIN_TRY {
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H5Dclose(dset);
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H5Fclose(file);
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H5Pclose(fapl);
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} H5E_END_TRY;
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(void)MPI_Finalize();
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return 1;
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}
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