diff options
| -rw-r--r-- | src/H5FDmpio.c | 3 | ||||
| -rw-r--r-- | src/H5S.c | 9 |
2 files changed, 11 insertions, 1 deletions
diff --git a/src/H5FDmpio.c b/src/H5FDmpio.c index d20471f..76417bc 100644 --- a/src/H5FDmpio.c +++ b/src/H5FDmpio.c @@ -1524,6 +1524,9 @@ H5FD_mpio_flush(H5FD_t *_file) * Unfortunately, keeping track of EOF is an expensive operation, so * we can't just check whether EOF<EOA like with other drivers. * Therefore we'll just read the byte at EOA-1 and then write it back. */ + /* But if eoa is zero, then nothing to flush. Just return */ + if (file->eoa == 0) + HRETURN(SUCCEED); if (haddr_to_MPIOff(file->eoa-1, &mpi_off)<0) { HRETURN_ERROR(H5E_INTERNAL, H5E_BADRANGE, FAIL, "cannot convert from haddr_t to MPI_Offset"); @@ -40,7 +40,7 @@ static size_t H5S_nconv_g = 0; /*entries used*/ #ifdef H5_HAVE_PARALLEL /* Global var whose value comes from environment variable */ -hbool_t H5_mpi_opt_types_g = TRUE; +hbool_t H5_mpi_opt_types_g = FALSE; #endif /* Declare a free list to manage the H5S_simple_t struct */ @@ -92,9 +92,16 @@ H5S_init_interface(void) { /* Allow MPI buf-and-file-type optimizations? */ const char *s = HDgetenv ("HDF5_MPI_OPT_TYPES"); +#ifdef H5FDmpio_DEBUG + hbool_t oldtmp = H5_mpi_opt_types_g ; +#endif if (s && HDisdigit(*s)) { H5_mpi_opt_types_g = (int)HDstrtol (s, NULL, 0); } +#ifdef H5FDmpio_DEBUG + fprintf(stdout, "H5_mpi_opt_types_g was %ld became %ld\n", + oldtmp, H5_mpi_opt_types_g); +#endif } #endif |