[svn-r8125] Purpose:

    Bug fix/optimization

Description:
    Address slowdown in MPI-I/O file metadata operations that was introduced
mid-stream.  We now _require_ a POSIX compliant parallel file system for the
MPI-I/O file driver (as well as for the MPI-POSIX file driver).
    Also optimized file open operation when the file is being created by
reducing the number of collective & syncronizing calls.

Platforms tested:
    FreeBSD 4.9 (sleipnir) w/parallel
    h5committest

1 files changed, 0 insertions, 12 deletions

diff --git a/src/H5F.c b/src/H5F.c
index 322fe3c..042c5e8 100644
--- a/src/H5F.c
+++ b/src/H5F.c
@@ -232,18 +232,6 @@ H5F_init_interface(void)
     
     FUNC_ENTER_NOAPI_NOINIT(H5F_init_interface);
 
-#ifdef OLD_METADATA_WRITE
-#ifdef H5_HAVE_PARALLEL
-    {
-        /* Allow MPI buf-and-file-type optimizations? */
-        const char *s = HDgetenv ("HDF5_MPI_1_METAWRITE");
-        if (s && HDisdigit(*s)) {
-            H5_mpiposix_1_metawrite_g = H5_mpi_1_metawrite_g = (int)HDstrtol (s, NULL, 0);
-        }
-    }
-#endif /* H5_HAVE_PARALLEL */
-#endif /* OLD_METADATA_WRITE */
-
     /*
      * Initialize the atom group for the file IDs. There are two groups:
      * the H5I_FILE group contains all the ID's for files which are currently