[svn-r10170] Purpose:

Bug Fixes

Description:
Fixes for several bugs, including dumping of excess output to a temporary file, fix for printing
hsize_t datatype, and the long awaited fix for intermixed output.

Solution:
Fix 1:  Overflow file
Previously, any output that a worker task made was buffered locally in memory, up to a point.  Any
output beyond the size of the buffer (used to be 10k) was discarded.  Now, the memory buffer size has been
changed to 1k and any output beyond this amount is sent a temporary file.  This way, no output is lost
and memory usage is kept under control.  The temporary file is deleted as soon as a worker task finishes
sending its contents to the manager.

Fix 2:  hsize_t printing
Printing of the hsize_t datatype used to be handled by %Hu passed to HDfprintf.  However, there is no corresponding HDvsnprintf that
is able to print hsize_t types.  These are now printed with the aid of H5_PRINTF_LL_WIDTH.

Fix 3:  Intermixed output fix
Intermixed output would occur on some machines (although I haven't seen it happen for a while) due to the unpredictability of the underlying network
and the speed at which various message would travel.  This has been fixed by having all output send to the manager
for printing.  The worker tasks no longer print the output themselves upon receipt of a token, but instead
send that data to the manager.



Platforms tested:
heping, eirene, tg-login (the only place that seems to still experience intermixed output every now and then)

Misc. update:

1 files changed, 7 insertions, 4 deletions

diff --git a/tools/lib/ph5diff.h b/tools/lib/ph5diff.h
index 91d7050..44e5b26 100644
--- a/tools/lib/ph5diff.h
+++ b/tools/lib/ph5diff.h
@@ -16,7 +16,8 @@
 #define _PH5DIFF_H__
 
 
-#define OUTBUFF_SIZE 50000
+#define PRINT_DATA_MAX_SIZE 	512
+#define OUTBUFF_SIZE 		PRINT_DATA_MAX_SIZE*2
 /* Send from manager to workers */
 #define MPI_TAG_ARGS		1	
 #define MPI_TAG_PRINT_TOK	2
@@ -25,15 +26,17 @@
 #define MPI_TAG_TOK_REQUEST	3
 #define MPI_TAG_DONE		4
 #define MPI_TAG_TOK_RETURN	5
+#define MPI_TAG_PRINT_DATA	6
 
 /* Operational tags used to init and complete diff */
-#define MPI_TAG_END		6
-#define MPI_TAG_PARALLEL	7
+#define MPI_TAG_END		7
+#define MPI_TAG_PARALLEL	8
 
 extern int	g_nTasks;
 extern unsigned char g_Parallel;
-extern char    outBuff[OUTBUFF_SIZE];
+extern char    outBuff[];
 extern unsigned int	outBuffOffset;
+extern FILE*		overflow_file;
 
 struct diff_args
 {