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72075e7f11
Purpose:
Feature; Optimization
Description:
Clients pass `-1' or make their own #define for HDF5 functions
that take an optional object ID.
Blue's GPFS is slow for typical SAF restart dumps.
Solution:
Added a #define for H5I_INVALID_HID
Added GPFS-specific code to H5FDmpiposix.c that tells mmfsd to
forego byte range token prefetching. This code can be compiled
into the library by defining USE_GPFS_HINTS. The plan is to either
generalize this so it's detected during configure and turned
on/off at runtime, or to move it up into DSL/SAF with the new HDF5
functions to that return the low-level file handle.
Platforms tested:
SuSE Linux (arborea), gcc and mpich-1.2.4
SunOS (baldric), gcc
2002-09-05 12:24:28 Robb Matzke <matzke@arborea.spizella.com>
*: Added #define for H5I_INVALID_HID. An invalid object handle is
actually any integer that isn't currently in use as a
handle, and non-positive integers are never used as a
handle. The #define is -1, and is mostly so that HDF5
users can pass a symbolic name instead of a negative
number to functions that take optional object ID
arguments.
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| bin | ||
| c++ | ||
| config | ||
| doc | ||
| examples | ||
| fortran | ||
| hl/tools/gif2h5 | ||
| pablo | ||
| perform | ||
| release_docs | ||
| src | ||
| test | ||
| testpar | ||
| tools | ||
| windows | ||
| aclocal.m4 | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| Makefile.dist | ||
| Makefile.in | ||
| MANIFEST | ||
| README.txt | ||
HDF5 version 1.5.43 currently under development
Please refer to the release_docs/INSTALL file for installation instructions.
------------------------------------------------------------------------------
This release is almost fully functional for the entire API defined in the
documentation, see the RELEASE.txt file in this directory for information
specific to this release of the library. The INSTALL file contains
instructions on compiling and installing the library. The INSTALL_parallel
file contains instructions on installing the parallel version of the
library. The INSTALL* files can be found in the release_docs/ directory.
Documentation for this release is in the html directory. Start with the
"index.html" in that directory.
Four mailing lists are currently set up for use with the HDF5
library.
hdf5 - For general discussion of the HDF5 library with
other users.
hdf5dev - For discussion of the HDF5 library development
with developers and other interested parties.
hdf5announce - For announcements of HDF5 related developments,
not a discussion list.
hdf5cvs - For checkin notices of code development on the library,
not a discussion list.
To subscribe to a list, send mail to "majordomo@ncsa.uiuc.edu",
with "subscribe <list>" in the _body_, not the Subject, of the message.
E.g., subscribe hdf5
Messages to be sent to the list should be sent to "<list>@ncsa.uiuc.edu".
Nearly daily code snapshots are now being provided at the following URL:
ftp://hdf.ncsa.uiuc.edu/pub/outgoing/hdf5/snapshots
Please read the readme file in that directory before working with a library
snapshot.
The HDF5 website is located at http://hdf.ncsa.uiuc.edu/HDF5/
Bugs should be reported to hdfhelp@ncsa.uiuc.edu.