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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* 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 = H5Dcreate2(file, "dset", H5T_NATIVE_FLOAT, space, H5P_DEFAULT, H5P_DEFAULT, 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 = H5Gcreate2(file, "some_groups", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) goto error;
for(i = 0; i < 100; i++) {
sprintf(name, "grp%02u", (unsigned)i);
if((grp = H5Gcreate2(groups, name, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 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 file1, file2, fapl;
MPI_File mpifh=-2;
int *mpifh_p = NULL;
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);
file1 = create_file(name, fapl);
/* Flush and exit without closing the library */
if(H5Fflush(file1, H5F_SCOPE_GLOBAL) < 0) goto error;
/* Create the other file which will not be flushed */
h5_fixname(FILENAME[1], fapl, name, sizeof name);
file2 = create_file(name, fapl);
if(mpi_rank == 0)
PASSED();
fflush(stdout);
fflush(stderr);
}
else
{
SKIPPED();
puts(" Test not compatible with current Virtual File Driver");
}
/*
* Some systems like Linux with mpich, if you just _exit without MPI_Finalize
* called, it would terminate but left the launching process waiting forever.
* OTHO, some systems like AIX do not like files not closed when MPI_Finalize
* is called. So, we need to get the MPI file handles, close them by hand,
* then MPI_Finalize. Then the _exit is still needed to stop at_exit from
* happening in some systems.
* Note that MPIO VFD returns the address of the file-handle in the VFD struct
* because MPI_File_close wants to modify the file-handle variable.
*/
/* close file1 */
if(H5Fget_vfd_handle(file1, fapl, (void **)&mpifh_p) < 0){
printf("H5Fget_vfd_handle for file1 failed\n");
goto error;
}
if(MPI_File_close(mpifh_p)!=MPI_SUCCESS){
printf("MPI_File_close for file1 failed\n");
goto error;
}
/* close file2 */
if(H5Fget_vfd_handle(file2, fapl, (void **)&mpifh_p) < 0){
printf("H5Fget_vfd_handle for file2 failed\n");
goto error;
}
if(MPI_File_close(mpifh_p)!=MPI_SUCCESS){
printf("MPI_File_close for file2 failed\n");
goto error;
}
fflush(stdout);
fflush(stderr);
MPI_Finalize();
HD_exit(0);
error:
fflush(stdout);
fflush(stderr);
MPI_Finalize();
HD_exit(1);
}
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