[svn-r5390] Purpose:

    Code cleanup

Description:
    The parallel I/O file driver is optimized to only write metadata with one
    process (and broadcast the results to the other processes).  This is
    currently enabled by a separate call to H5FD_mpio_tas_allsame() before
    each metadata write to the file.  This can easily lead to problems where
    the prelude function call is omitted before the actual write code or, in
    a threaded environment, lead to race condititions where the value set is
    reset before being used.

Solution:
    Since we only want to write metadata from one process, key off of the 'type'
    parameter (which has information about whether the data being written it
    metadata or raw data) to H5FD_mpio_write() as the method for determining
    whether to only write from one process or not.

Platforms tested:
    IRIX64 6.5 (modi4)

1 files changed, 0 insertions, 1 deletions

diff --git a/src/H5FDmpio.h b/src/H5FDmpio.h
index 86ba0f7..08dd857 100644
--- a/src/H5FDmpio.h
+++ b/src/H5FDmpio.h
@@ -56,7 +56,6 @@ __DLL__ herr_t H5Pget_fapl_mpio(hid_t fapl_id, MPI_Comm *comm/*out*/,
 			MPI_Info *info/*out*/);
 __DLL__ herr_t H5Pset_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t xfer_mode);
 __DLL__ herr_t H5Pget_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t *xfer_mode/*out*/);
-__DLL__ htri_t H5FD_mpio_tas_allsame(H5FD_t *_file, hbool_t newval);
 __DLL__ MPI_Comm H5FD_mpio_communicator(H5FD_t *_file);
 __DLL__ herr_t H5FD_mpio_setup(H5FD_t *_file, MPI_Datatype btype, MPI_Datatype ftype,
 		       haddr_t disp, hbool_t use_types);