Darshan 3.1.8 is now available for download here.
This release introduces a new trace triggering mechanism that allows users to specify triggers that dictate which files are traced using Darshan’s tracing module, DXT. Users just need to provide Darshan a configuration file describing the triggers and Darshan will decide at runtime which files to store trace data for. Types of triggers include file- and rank-based triggers (based on regex patterns), as well as file access characteristics triggers (to trace based on frequency of small or unaligned I/O accesses). Please refer to darshan-runtime documentation on the DXT module for more details.
Note that full tracing is disabled by default in Darshan and this release does not change that — this is just a mechanism to allow DXT users more control over tracing.