diff options
Diffstat (limited to 'release_docs/RELEASE.txt')
| -rw-r--r-- | release_docs/RELEASE.txt | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index d712d57..c3a5d6e 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -164,6 +164,10 @@ Documentation New Features ============ + * Changed method for allocating chunked dataset blocks in parallel to only + allocate blocks that don't already exist, instead of attempting to create + all the blocks all the time. This improves parallel I/O performance for + chunked datasets. QAK - 2002/05/17 * Allowed the call to MPI_File_sync to be avoided when the file is going to immediately be closed, improving performance. QAK - 2002/05/13 * Allow the metadata writes to be shared among all processes, easing the @@ -184,9 +188,12 @@ New Features datatype conversion is unneccessary. QAK - 2002/04/02 * Improved performance of single hyperslab I/O when datatype conversion is unneccessary. QAK - 2002/04/02 + * New API function H5Dset_extent. Modifies the dimensions of a dataset, + allows change to a lower dimension. The unused space in the file is freed. + PVN - 2002/03/31 * Added new "H5Sget_select_type" API function to determine which type of selection is defined for a dataspace ("all", "none", "hyperslab" or - "point"). QAK - 2002/02/7 + "point"). QAK - 2002/02/07 * Added support to read/write portions of chunks directly, if they are uncompressed and too large to cache. This should speed up I/O on chunked datasets for a few more cases. QAK - 2002/01/31 @@ -279,9 +286,6 @@ New Features * A helper script called ``h5cc'', which helps compilation of HDF5 programs, is now distributed with HDF5. See the reference manual for information on how to use this feature. - * New API function H5Dset_extent. Modifies the dimensions of a dataset, - allows change to a lower dimension. The unused space in the file is freed. - PVN - 2002/03/31 Support for new platforms and languages ======================================= |