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Code optimization
Description:
Allow global heap collections to grow in size (up to a 64K limit) if they
are able to. This allows them to grow to a more reasonable size than the 4K
minimum size.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
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Code cleanup
Description:
Add destructor to match constructor fr VFLs when they are shut down by the
library.
Solution:
Added H5FD_*_term() routines to "undo" changes made in H5FD_*_init()
routines.
Platforms tested:
IBM p690 (copper)
too minor to require h5committest
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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.
Additionally, refactor the MPI routines into a common place, eliminating
duplicated code.
Platforms tested:
FreeBSD 4.9 (sleipnir) w/parallel
h5committest
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Bug fix & code cleanups
Description:
Change our use of MPI derived datatypes to not create datatypes with
"0-sized" lengths, which causes the LANL Q machine to hang.
Also, get rid of "prefer MPI derived datatypes" environment variable since
it has no advantage.
Platforms tested:
FreeBSD 4.9 (sleipnir) w & w/o parallel
h5committest
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Bug fix
Description:
Change "H5_HAVE_PARALLEL" to "H5_HAVE_FPHDF5" around VFL ID, to prevent
daily builds from failing.
Platforms tested:
FreeBSD 4.9 (sleipnir) w/parallel
too specialized to require h5committest
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Code cleanup
Description:
Clean up various warnings and parameter mis-matches, etc.
Platforms tested:
FreeBSD 4.9 (sleipnir)
too minor to need h5committest
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Update
Description:
Added an extra flag to the clear functions that triggers a "destroy"
of the object being cleared if necessary. This is a fix for the
FPHDF5 stuff which had an object sticking around after it was
cleared. (In FPHDF5, some processes are in charge of destroying the
object, but all processes might actually allocate the object.)
Platforms tested:
AIX (Copper: Fortran & C++)
Linux (Verbena: Fortran & C++)
IRIX (Modi4: Parallel & Fortran)
(Sol is down)
Misc. update:
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Update
Description:
More changes to the FPHDF5 file driver. Too many to mention here.
Some highlights:
- Addition of lock/unlock methods to the driver, though they
aren't implemented fully just yet.
- Extra query functions to determine various things about the
file. (If this is the captain process, etc)
- Fixes to make things work...
Platforms tested:
Linux
Misc. update:
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Bug Fix
Description:
Private header file was included in a public header file by mistake.
Solution:
Put the private header file into the .c module instead.
Platforms tested:
Linux 2.4 (see, I really did test it).
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Update
Description:
Added support for allocating and freeing space in the file.
Platforms tested:
Linux & Modi4
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Update
Description:
Since metadata doesn't use a "set view" to do I/O, I moved the check
for the use_set_view variable down into the "real" write routine.
Also added a check for when the server is dumping metadata to the
file. in that case, don't write this information to the SAP...
Platforms tested:
Linux
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Update
Description:
Added the flush function.
Modified so that it calls the FPHDF5 code for reading and writing.
This involved splitting the write function up into three different
parts to avoid lame goto's. There's some code which will copy a data
xfer property list and add in there that we're "dumping" the data so
that we can recall this layer when the SAP dumps metadata to a
process...
Platforms tested:
Linux
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Update
Description:
Folded in Quincey's changes to the caching stuff. (Stole the code
from the H5FDmpio driver).
Roughed in some code for doing a read from the SAP. Also roughed in
code for doing a write. However, the write requires an OID, which I'm
not sure how to pass down into the driver (maybe via the
dxpl_id?...but then it has always to be set before calling one of
these routines...).
Removed some of the global variables which were there because of the
FPHDF5 stuff...
Removed the H5Ofphdf5.* stuff from the Makefile.in, since I'm pretty
sure it's going away and I don't want to waste time updating that
module if that's the case...so just don't compile it.
Platforms tested:
Linux
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Update
Description:
H5FP.c, H5FPclient.c, H5FPprivate.h, H5FPserver.c:
Update. More progression towards the SAP as metadata cache. It
only lacks the ability to take care of metadata allocations.
H5FDfphdf5.[ch]:
Start of a new driver for FPHDF5. Not fully implemented just
yet...
Platforms tested:
Linux
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