mirror of
https://github.com/HDFGroup/hdf5.git
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213 lines
6.9 KiB
C
213 lines
6.9 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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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://www.hdfgroup.org/licenses. *
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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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/*
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* Purpose: This is the first half of a two-part test that makes sure
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* that a file can be read after a parallel application crashes
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* as long as the file was flushed first. We simulate a crash by
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* calling _exit() since this doesn't flush HDF5 caches but
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* still exits with success.
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*/
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#include "h5test.h"
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static const char *FILENAME[] = {"flush", "noflush", NULL};
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static int *data_g = NULL;
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#define N_GROUPS 100
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/*-------------------------------------------------------------------------
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* Function: create_test_file
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*
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* Purpose: Creates the file used in part 1 of the test
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*
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* Return: Success: A valid file ID
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* Failure: H5I_INVALID_HID
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*-------------------------------------------------------------------------
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*/
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static hid_t
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create_test_file(char *name, size_t name_length, hid_t fapl_id)
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{
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hid_t fid = H5I_INVALID_HID;
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hid_t dcpl_id = H5I_INVALID_HID;
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hid_t sid = H5I_INVALID_HID;
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hid_t did = H5I_INVALID_HID;
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hid_t top_level_gid = H5I_INVALID_HID;
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hid_t gid = H5I_INVALID_HID;
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hid_t dxpl_id = H5I_INVALID_HID;
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hsize_t dims[2] = {100, 100};
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hsize_t chunk_dims[2] = {5, 5};
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hsize_t i, j;
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if ((fid = H5Fcreate(name, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id)) < 0)
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goto error;
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/* Create a chunked dataset */
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if ((dcpl_id = H5Pcreate(H5P_DATASET_CREATE)) < 0)
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goto error;
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if (H5Pset_chunk(dcpl_id, 2, chunk_dims) < 0)
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goto error;
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if ((sid = H5Screate_simple(2, dims, NULL)) < 0)
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goto error;
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if ((did = H5Dcreate2(fid, "dset", H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
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goto error;
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if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
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goto error;
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if (H5Pset_dxpl_mpio(dxpl_id, H5FD_MPIO_COLLECTIVE) < 0)
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goto error;
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/* Write some data */
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for (i = 0; i < dims[0]; i++)
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for (j = 0; j < dims[1]; j++)
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data_g[(i * 100) + j] = (int)(i + (i * j) + j);
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if (H5Dwrite(did, H5T_NATIVE_INT, sid, sid, dxpl_id, data_g) < 0)
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goto error;
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/* Create some groups */
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if ((top_level_gid = H5Gcreate2(fid, "some_groups", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
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goto error;
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for (i = 0; i < N_GROUPS; i++) {
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snprintf(name, name_length, "grp%02u", (unsigned)i);
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if ((gid = H5Gcreate2(top_level_gid, name, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
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goto error;
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if (H5Gclose(gid) < 0)
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goto error;
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}
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return fid;
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error:
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return H5I_INVALID_HID;
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} /* end create_test_file() */
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/*-------------------------------------------------------------------------
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* Function: main
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*
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* Purpose: Part 1 of a two-part parallel H5Fflush() test.
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*
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* Return: EXIT_FAILURE (always)
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*-------------------------------------------------------------------------
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*/
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int
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main(int argc, char *argv[])
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{
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hid_t fid1 = H5I_INVALID_HID;
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hid_t fid2 = H5I_INVALID_HID;
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hid_t fapl_id = H5I_INVALID_HID;
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MPI_File *mpifh_p = NULL;
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char name[1024];
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const char *envval = NULL;
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int mpi_size;
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int mpi_rank;
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MPI_Comm comm = MPI_COMM_WORLD;
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MPI_Info info = MPI_INFO_NULL;
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MPI_Init(&argc, &argv);
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MPI_Comm_size(comm, &mpi_size);
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MPI_Comm_rank(comm, &mpi_rank);
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if (mpi_rank == 0)
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TESTING("H5Fflush (part1)");
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/* Don't run using the split VFD */
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envval = getenv(HDF5_DRIVER);
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if (envval == NULL)
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envval = "nomatch";
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if (!strcmp(envval, "split")) {
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if (mpi_rank == 0) {
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SKIPPED();
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puts(" Test not compatible with current Virtual File Driver");
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}
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MPI_Finalize();
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exit(EXIT_FAILURE);
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}
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if (NULL == (data_g = malloc(100 * 100 * sizeof(*data_g))))
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goto error;
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if ((fapl_id = H5Pcreate(H5P_FILE_ACCESS)) < 0)
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goto error;
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if (H5Pset_fapl_mpio(fapl_id, comm, info) < 0)
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goto error;
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/* Create the file */
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h5_fixname(FILENAME[0], fapl_id, name, sizeof(name));
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if ((fid1 = create_test_file(name, sizeof(name), fapl_id)) < 0)
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goto error;
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/* Flush and exit without closing the library */
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if (H5Fflush(fid1, H5F_SCOPE_GLOBAL) < 0)
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goto error;
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/* Create the other file which will not be flushed */
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h5_fixname(FILENAME[1], fapl_id, name, sizeof(name));
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if ((fid2 = create_test_file(name, sizeof(name), fapl_id)) < 0)
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goto error;
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if (mpi_rank == 0)
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PASSED();
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fflush(stdout);
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fflush(stderr);
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/* Some systems like AIX do not like files not being closed when MPI_Finalize
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* is called. So, we need to get the MPI file handles, close them by hand.
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* Then the _exit is still needed to stop at_exit from happening in some systems.
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* Note that MPIO VFD returns the address of the file-handle in the VFD struct
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* because MPI_File_close wants to modify the file-handle variable.
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*/
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/* Close file 1 */
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if (H5Fget_vfd_handle(fid1, fapl_id, (void **)&mpifh_p) < 0)
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goto error;
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if (MPI_File_close(mpifh_p) != MPI_SUCCESS)
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goto error;
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/* Close file 2 */
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if (H5Fget_vfd_handle(fid2, fapl_id, (void **)&mpifh_p) < 0)
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goto error;
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if (MPI_File_close(mpifh_p) != MPI_SUCCESS)
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goto error;
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fflush(stdout);
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fflush(stderr);
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if (data_g) {
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free(data_g);
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data_g = NULL;
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}
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/* Always exit with a failure code!
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*
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* In accordance with the standard, not having all processes
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* call MPI_Finalize() can be considered an error, so mpiexec
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* et al. may indicate failure on return. It's much easier to
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* always ignore the failure condition than to handle some
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* platforms returning success and others failure.
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*/
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_exit(EXIT_FAILURE);
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error:
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fflush(stdout);
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fflush(stderr);
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printf("*** ERROR ***\n");
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printf("THERE WAS A REAL ERROR IN t_pflush1.\n");
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fflush(stdout);
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if (data_g)
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free(data_g);
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_exit(EXIT_FAILURE);
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} /* end main() */
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