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Diffstat (limited to 'testpar/t_pflush1.c')
| -rw-r--r-- | testpar/t_pflush1.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/testpar/t_pflush1.c b/testpar/t_pflush1.c new file mode 100644 index 0000000..f2292b2 --- /dev/null +++ b/testpar/t_pflush1.c @@ -0,0 +1,174 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by the Board of Trustees of the University of Illinois. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the files COPYING and Copyright.html. COPYING can be found at the root * + * of the source code distribution tree; Copyright.html can be found at the * + * root level of an installed copy of the electronic HDF5 document set and * + * is linked from the top-level documents page. It can also be found at * + * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * + * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Programmer: Leon Arber <larber@uiuc.edu> + * Sept. 28, 2006. + * + * Purpose: This is the first half of a two-part test that makes sure + * that a file can be read after a parallel application crashes as long + * as the file was flushed first. We simulate a crash by + * calling _exit(0) since this doesn't flush HDF5 caches but + * still exits with success. + */ +#include <mpi.h> +#include "h5test.h" + +const char *FILENAME[] = { + "flush", + "noflush", + NULL +}; + +static double the_data[100][100]; + +/*------------------------------------------------------------------------- + * Function: create_file + * + * Purpose: Creates file used in part 1 of the test + * + * Return: Success: 0 + * + * Failure: 1 + * + * Programmer: Leon Arber + * Sept. 26, 2006 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +hid_t create_file(char* name, hid_t fapl) +{ + hid_t file, dcpl, space, dset, groups, grp, plist; + hsize_t ds_size[2] = {100, 100}; + hsize_t ch_size[2] = {5, 5}; + hsize_t i, j; + + + + if ((file=H5Fcreate(name, H5F_ACC_TRUNC, H5P_DEFAULT, fapl))<0) goto error; + + /* Create a chunked dataset */ + if ((dcpl=H5Pcreate(H5P_DATASET_CREATE))<0) goto error; + if (H5Pset_chunk(dcpl, 2, ch_size)<0) goto error; + if ((space=H5Screate_simple(2, ds_size, NULL))<0) goto error; + if ((dset=H5Dcreate(file, "dset", H5T_NATIVE_FLOAT, space, H5P_DEFAULT))<0) + goto error; + + plist = H5Pcreate(H5P_DATASET_XFER); + H5Pset_dxpl_mpio(plist, H5FD_MPIO_COLLECTIVE); + + + /* Write some data */ + for (i=0; i<ds_size[0]; i++) { + /* + * The extra cast in the following statement is a bug workaround + * for the Win32 version 5.0 compiler. + * 1998-11-06 ptl + */ + for (j=0; j<ds_size[1]; j++) { + the_data[i][j] = (double)(hssize_t)i/(hssize_t)(j+1); + } + } + if (H5Dwrite(dset, H5T_NATIVE_DOUBLE, space, space, plist, + the_data)<0) goto error; + + /* Create some groups */ + if ((groups=H5Gcreate(file, "some_groups", 0))<0) goto error; + for (i=0; i<100; i++) { + sprintf(name, "grp%02u", (unsigned)i); + if ((grp=H5Gcreate(groups, name, 0))<0) goto error; + if (H5Gclose(grp)<0) goto error; + } + + + return file; + +error: + HD_exit(1); + +} + +/*------------------------------------------------------------------------- + * Function: main + * + * Purpose: Part 1 of a two-part H5Fflush() test. + * + * Return: Success: 0 + * + * Failure: 1 + * + * Programmer: Robb Matzke + * Friday, October 23, 1998 + * + * Modifications: + * Leon Arber + * Sept. 26, 2006, expand test to check for failure if H5Fflush is not called. + * + * + *------------------------------------------------------------------------- + */ +int +main(int argc, char* argv[]) +{ + hid_t file, fapl; + char name[1024]; + const char *envval = NULL; + int mpi_size, mpi_rank; + MPI_Comm comm = MPI_COMM_WORLD; + MPI_Info info = MPI_INFO_NULL; + + MPI_Init(&argc, &argv); + MPI_Comm_size(comm, &mpi_size); + MPI_Comm_rank(comm, &mpi_rank); + + fapl = H5Pcreate(H5P_FILE_ACCESS); + H5Pset_fapl_mpio(fapl, comm, info); + + if(mpi_rank == 0) + TESTING("H5Fflush (part1)"); + envval = HDgetenv("HDF5_DRIVER"); + if (envval == NULL) + envval = "nomatch"; + if (HDstrcmp(envval, "split")) { + /* Create the file */ + h5_fixname(FILENAME[0], fapl, name, sizeof name); + file = create_file(name, fapl); + /* Flush and exit without closing the library */ + if (H5Fflush(file, H5F_SCOPE_GLOBAL)<0) goto error; + + /* Create the other file which will not be flushed */ + h5_fixname(FILENAME[1], fapl, name, sizeof name); + file = create_file(name, fapl); + + + if(mpi_rank == 0) + PASSED(); + fflush(stdout); + fflush(stderr); + } + else + { + SKIPPED(); + puts(" Test not compatible with current Virtual File Driver"); + } + + HD_exit(0); + + error: + HD_exit(1); + return 1; + +} |