Commit 86af8926 authored by Philip Carns's avatar Philip Carns

update changelog for 2.2.6-pre2


git-svn-id: https://svn.mcs.anl.gov/repos/darshan/trunk@705 3b7491f3-a168-0410-bf4b-c445ed680a29
parent b1391198
......@@ -4,22 +4,29 @@ Darshan Release Change Log
darshan-2.2.6-pre2
=============
* Install libdarshan-util and headers during installation process for
darshan-util; patch contributed by Matthieu Dorier
* 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
* Change default MPI-IO hints for writing log file to
romio_no_indep_rw=true and cb_nodes=4 to improve log creation performance
* Optimize darshan startup by collecting mount point information at rank 0 and
broadcasting to all processes
* Remove deprecated --enable-st-dev-workaround configure option
* Misc. documentation updates
......
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