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This presentation targets HDF5 application developers and anyone who is interested in the new HDF5 Library features. The following new features available in 1.8.0 will be discussed:
HDF5 cache (10 minutes)
Meta data working set size is highly variable depending on file structure and access pattern. If the cache is too small, performance will deteriorate. In 1.8 we introduce code to configure metadata cache size automatically and API calls to allow manual configuration of the metadata cache.
Text - data type conversion (10 minutes)
The new high-level API function, H5LTtext_to_dtype, provides the ability to create a data type through the text description of the data type. The function H5LTdtype_to_text facilitates debugging by printing the text description of a data type. The current supported text description is in DDL format.
External Links (10 minutes)
This feature allows links in a group to refer to objects in another file, and for the library to access those objects as if they are in the current file. We will present the API functions and how external links are supported.
Group revisions (25 minutes)
We will introduce new features of the HDF5 Group object that include compact group storage, new large group storage, intermediate Group Creation and support of Unicode for the HDF5 object’s names and datatypes. We will also cover new APIs for copying HDF5 objects between HDF5 files.