[Darshan-users] Darshan 2.2.6-pre2 available for testing

[Phil Carns]

Hi everyone,

We have just posted a new pre-release version of Darshan:

ftp://ftp.mcs.anl.gov/pub/darshan/releases/darshan-2.2.6-pre2.tar.gz

This should become an official 2.2.6 release in the next few days unless 
something unexpected comes up during testing.  The change log for this 
release is listed below.

thanks,
-Darshan development team

darshan-2.2.6-pre2
=============
* Bug fixes:
   - make sure to honor user-specified hints passed in at runtime
     via the DARSHAN_LOGHINTS env variable.
   - include fread and fwrite in darshan-job-summary.pl read and write 
counts
   - fix segmentation fault on invalid arguments to darshan-parser
* Performance enhancements:
   - collect mount point information at rank 0 and broadcast to all
     processes to avoid excess file system traffic on startup
   - change default MPI-IO hints for writing log file to
     romio_no_indep_rw=true and cb_nodes=4 to improve log creation 
performance
* Install libdarshan-util and headers during installation process for
   darshan-util; patch contributed by Matthieu Dorier
* Detect PMPI support at link time when using compiler scripts produced
   by the darshan-gen-* utilities.  This avoids link problems when Darshan
   compiler wrappers are used with the ADIOS dummy MPI library; reported
   by Jingqing Mu
* Support MPICH_{CC/CXX/F77} environment variables in compiler scripts
   produced by the darshan-gen-* utilities
* Add instrumentation of startup time, enabled via DARSHAN_INTERNAL_TIMING
   environment variable
* Rename cp-shutdown-bench test utility to darshan-shutdown-bench and enable
   benchmarking hooks in library by default so that darshan-shutdown-bench
   can be used with any Darshan installation
* Remove deprecated --enable-st-dev-workaround configure option
* Misc. documentation updates