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Diffstat (limited to 'RELEASE')
| -rw-r--r-- | RELEASE | 105 |
1 files changed, 104 insertions, 1 deletions
@@ -1,6 +1,109 @@ -Release information for hdf5-1.1.x +Release information for hdf5-1.2.0 ------------------------------------ + CHANGES SINCE VERSION 1.0.1 + +Documentation +------------- + +* More examples + +* Updated user guide, reference manual, and format specification. + +* Self-contained documentation for installations isolated from the + Internet. + +Configuration +------------- + +* Better detection and support for MPI-IO. + +* Recognition of compilers with known code generation problems. + +* Support for various compilers on a single architecture (e.g., the + native compiler and the GNU compilers). + +* Ability to build from read-only media and with different compilers + and/or options concurrently. + +* Added a libhdf5.settings file which summarizes the configuration + information and is installed along with the library. + +* Builds a shared library on most systems that support it. + +* Support for Cray T3E and Windows/NT. + +Debugging +--------- + +* Improved control and redirection of debugging and tracing messages. + +Datatypes +--------- + +* Optimizations to compound datatype conversions and I/O operations. + +* Added nearly 100 optimized conversion functions for native datatypes + including support for non-aligned data. + +* Added support for bitfield, opaque, and enumeration types. + +* Added distinctions between signed and unsigned char types to the + list of predefined native hdf5 datatypes. + +* Added HDF5 type definitions for C9x types like int32_t. + +* Application-defined type conversion functions can handle non-packed + data. + +* Changed the H5Tunregister() function to use wildcards when matching + conversion functions. H5Tregister_hard() and H5Tregister_soft() + were combined into H5Tregister(). + +* Support for variable-length datatypes (arrays of varying length per + dataset element). Variable length strings currently supported only + as variable length arrays of 1-byte integers. + +Data Spaces +----------- + +* New query functions for selections. + +* I/O operations bypass the stripmining loop and go directly to + storage for certain contiguous selections in the absense of type + conversions. In other cases the stripmining buffers are used more + effectively. + +* Reduced the number of I/O requests under certain circumstances, + improving performance on systems with high I/O latency. + +Persistent Pointers +------------------- + +* Object (serial and parallel) and dataset region (serial only) + references are implemented. + +Parallel Support +---------------- + +Tools +----- + +* Enhancements to the h5ls tool including the ability to list objects + from more than one file, to display raw hexadecimal data, to + show file addresses for raw data, to format output more reasonably, + to show object attributes, and to perform a recursive listing, + +* Enhancements to h5dump similar to h5ls. + +* An hdf5 to hdf4 converter. + + + + + + + CHANGES SINCE THE Version 1.0.0 RELEASE * [Improvement]: configure sets up the Makefile in the parallel tests |