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e0177ee0f3
Code speedup
Description:
Chunking I/O routines are reading in an entire chunk when performing I/O
on the chunk, even if the chunk will be too large to cache.
Solution:
If the chunk is too large to cache, uncompressed and has been allocated
space in the file, or if we are using the MPI-I/O VFD, perform the I/O
directly to the chunk, instead of reading the chunk into memory, updating
it and immediately writing the entire chunk back out.
Platforms tested:
FreeBSD 4.5 (sleipnir) (using serial access) and IRIX64 6.5 (modi4) (using
parallel access with MPI-I/O)
HDF5 version 1.5.20 currently under development
Please refer to the 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.
Documentation for this release is in the html directory. Start with the
"index.html" in that dictectory.
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