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Darshan users,<br>
<br>
Darshan 3.0.0, the new modularized implementation of Darshan, is now
officially ready to be released! This is the first stable release of
the Darshan 3.0 fork and builds off the experimental pre-releases we
have been providing over the last few months. We encourage users to
consider upgrading to this version in the near future as it contains
numerous enhancements over older versions: logging of full file
paths, clearer parser and job summary output, addition of a BG/Q
specific instrumentation module, future proofing for any upcoming
instrumentation modules, etc.<br>
<br>
The following changes have been made between this official release
and the last pre-release (darshan-3.0.0-pre3):<br>
<br>
* fix bug causing compile errors when building external utilities
that use the darshan-util API/library<br>
* update docs to give debugging tips for cases where Darshan logs
are not generated<br>
* update darshan-runtime docs to give information on upgrading
Darshan<br>
* fix shared library regression test script to check for potential
errors with Darshan symbols rather than failing silently in these
cases<br>
* bug fix for determining minimum non-zero counters in shared file
reductions in all modules<br>
* loosen Darshan’s PMPI symbol check to prevent inadvertent
disabling of Darshan for some MPICH builds<br>
* bug fix for resolving MPI_Gather and MPI_Barrier when LDPRELOADing
Darshan’s shared libraries<br>
* add more helpful error handling when opening 2.x version log files<br>
* port darshan-diff utility over to new 3.0.0 log file format<br>
* fix numerous configure bugs on Cray systems<br>
* add synthetic benchmarking hooks for testing Darshan’s shutdown
procedure<br>
<br>
We have tested this version extensively on a number of platforms
over the last few months and are satisfied with the new features and
Darshan’s overall performance. Included in the darshan-runtime
documentation (a link is provided below) is some information on how
to best upgrade from a Darshan 2.x version to Darshan 3.0.0. As
always, please let us know if you have any issues or questions
(using either the Darshan users mailing list or by opening an issue
on the Darshan GitLab page).<br>
<br>
You can download the release tarball <a
href="http://press3.mcs.anl.gov/darshan/download/">HERE</a>. <br>
<br>
Documentation for this version of Darshan can be found <a
href="http://press3.mcs.anl.gov/darshan/documentation/">HERE</a>.<br>
<br>
Thanks!<br>
--Darshan team<br>
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