[svn-r6387] Purpose:

    Bug Fix

Description:
    Metadata cache in parallel I/O can cause hangs in applications which
    perform independent I/O on chunked datasets, because the metadata cache
    can attempt to flush out dirty metadata from only a single process, instead
    of collectively from all processes.

Solution:
    Pass a dataset transfer property list down from every API function which
    could possibly trigger metadata I/O.

    Then, split the metadata cache into two sets of entries to allow dirty
    metadata to be set aside when a hash table collision occurs during
    independent I/O.

Platforms tested:
    Tested h5committest {arabica (fortran), eirene (fortran, C++)
        modi4 (parallel, fortran)}

    FreeBSD 4.7 (sleipnir) serial & parallel

Misc. update:
    Updated release_docs/RELEASE

1 files changed, 10 insertions, 16 deletions

diff --git a/src/H5Fpkg.h b/src/H5Fpkg.h
index 9326060..aab992a 100644
--- a/src/H5Fpkg.h
+++ b/src/H5Fpkg.h
@@ -176,24 +176,17 @@ H5_DLLVAR  hbool_t H5_mpiposix_1_metawrite_g;
 #endif /* H5_HAVE_PARALLEL */
 
 /* Private functions, not part of the publicly documented API */
-H5_DLL void H5F_encode_length_unusual(const H5F_t *f, uint8_t **p,
-				       uint8_t *l);
-H5_DLL H5F_t *H5F_open(const char *name, unsigned flags, hid_t fcpl_id, 
-			hid_t fapl_id);
-H5_DLL herr_t H5F_close(H5F_t *f);
-H5_DLL herr_t H5F_close_all(void);
-H5_DLL herr_t H5F_flush_all(hbool_t invalidate);
-H5_DLL herr_t H5F_debug(H5F_t *f, haddr_t addr, FILE * stream,
-			 int indent, int fwidth);
-H5_DLL herr_t H5F_istore_debug(H5F_t *f, haddr_t addr, FILE * stream,
-				int indent, int fwidth, int ndims);
+#ifdef NOT_YET
+H5_DLL void H5F_encode_length_unusual(const H5F_t *f, uint8_t **p, uint8_t *l);
+#endif /* NOT_YET */
 H5_DLL herr_t H5F_mountpoint(struct H5G_entry_t *find/*in,out*/);
+H5_DLL herr_t H5F_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE * stream,
+			 int indent, int fwidth);
 
 /* Functions that operate on indexed storage */
 H5_DLL herr_t H5F_istore_init (H5F_t *f);
-H5_DLL herr_t H5F_istore_flush (H5F_t *f, hbool_t preempt);
-H5_DLL herr_t H5F_istore_dest (H5F_t *f);
-H5_DLL herr_t H5F_istore_stats (H5F_t *f, hbool_t headers);
+H5_DLL herr_t H5F_istore_flush (H5F_t *f, hid_t dxpl_id, hbool_t preempt);
+H5_DLL herr_t H5F_istore_dest (H5F_t *f, hid_t dxpl_id);
 H5_DLL herr_t H5F_istore_read(H5F_t *f, hid_t dxpl_id,
                                 const struct H5O_layout_t *layout,
                                 struct H5P_genplist_t *dc_plist,
@@ -206,14 +199,15 @@ H5_DLL herr_t H5F_istore_write(H5F_t *f, hid_t dxpl_id,
                                 const hsize_t size_m[], const hssize_t offset_m[],
                                 const hssize_t offset[], const hsize_t size[],
                                 const void *buf);
+H5_DLL herr_t H5F_istore_stats (H5F_t *f, hbool_t headers);
+H5_DLL herr_t H5F_istore_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE * stream,
+				int indent, int fwidth, int ndims);
 
 /* Functions that operate on contiguous storage wrt boot block */
 H5_DLL herr_t H5F_contig_read(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,
         size_t size, hid_t dxpl_id, void *_buf/*out*/);
 H5_DLL herr_t H5F_contig_write(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,
         size_t size, hid_t dxpl_id, const void *buf);
-
-/* Functions that operate on contiguous storage wrt boot block */
 H5_DLL herr_t H5F_contig_readv(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,
         size_t nseq, size_t size[], hsize_t offset[], hid_t dxpl_id, void *_buf/*out*/);
 H5_DLL herr_t H5F_contig_writev(H5F_t *f, hsize_t max_data, H5FD_mem_t type, haddr_t addr,