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| author | Raymond Lu <songyulu@hdfgroup.org> | 2007-06-01 19:28:10 (GMT) |
|---|---|---|
| committer | Raymond Lu <songyulu@hdfgroup.org> | 2007-06-01 19:28:10 (GMT) |
| commit | dc86a890adef656b0f0eddd4b6cdfa4b73378b69 (patch) | |
| tree | 9d60df193e6a0ca51e0d7d6e325ab8594040ec38 /src | |
| parent | 65e657479ef2a17e6a276a38e83c1831a395ada0 (diff) | |
| download | hdf5-dc86a890adef656b0f0eddd4b6cdfa4b73378b69.zip hdf5-dc86a890adef656b0f0eddd4b6cdfa4b73378b69.tar.gz hdf5-dc86a890adef656b0f0eddd4b6cdfa4b73378b69.tar.bz2 | |
[svn-r13828] Some systems (only SGI Altix ProPack 4 discovered so far) doesn't return correct
file size from MPI_File_get_size. Bypass this problem by replacing it with
stat. Add an option --disable-mpi-size in configure to indicate this function
doesn't work properly. Add a test in testpar/t_mpi.c, too. If it returns wrong
file size, print out a warning.
Tested on kagiso(parallel), cobalt, copper, and sol.
Diffstat (limited to 'src')
| -rw-r--r-- | src/H5FDmpio.c | 14 | ||||
| -rw-r--r-- | src/H5config.h.in | 3 |
2 files changed, 16 insertions, 1 deletions
diff --git a/src/H5FDmpio.c b/src/H5FDmpio.c index 8d0479f..4f348d5 100644 --- a/src/H5FDmpio.c +++ b/src/H5FDmpio.c @@ -742,6 +742,9 @@ H5FD_mpio_open(const char *name, unsigned flags, hid_t fapl_id, MPI_Comm comm_dup=MPI_COMM_NULL; MPI_Info info_dup=MPI_INFO_NULL; H5FD_t *ret_value; /* Return value */ +#ifndef H5_HAVE_MPI_GET_SIZE + struct stat stat_buf; +#endif FUNC_ENTER_NOAPI(H5FD_mpio_open, NULL) @@ -816,9 +819,18 @@ H5FD_mpio_open(const char *name, unsigned flags, hid_t fapl_id, /* Only processor p0 will get the filesize and broadcast it. */ if (mpi_rank == 0) { - /* Get current file size */ + /* Get current file size. If MPI_File_get_size is disabled in configuration + * because it doesn't return correct value (SGI Altix Propack 4), + * use stat to get the file size. */ +#ifdef H5_HAVE_MPI_GET_SIZE if (MPI_SUCCESS != (mpi_code=MPI_File_get_size(fh, &size))) HMPI_GOTO_ERROR(NULL, "MPI_File_get_size failed", mpi_code) +#else + if((mpi_code=HDstat(name, &stat_buf))<0) + HMPI_GOTO_ERROR(NULL, "stat failed", mpi_code) + /* Hopefully this casting is safe */ + size = (MPI_Offset)(stat_buf.st_size); +#endif } /* end if */ /* Broadcast file size */ diff --git a/src/H5config.h.in b/src/H5config.h.in index 4d4685b..c34a7c0 100644 --- a/src/H5config.h.in +++ b/src/H5config.h.in @@ -219,6 +219,9 @@ /* Define to 1 if you have the <mpe.h> header file. */ #undef HAVE_MPE_H +/* Define if MPI_File_get_size works correctly */ +#undef HAVE_MPI_GET_SIZE + /* Define to 1 if you have the <netinet/in.h> header file. */ #undef HAVE_NETINET_IN_H |