Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.
The DUMPI library provides trace collection and trace replay tools for MPI applications. The collection (dumpi) and replay (undumpi) tools can be enable in configure using:
--enable-libdumpi
--enable-libundumpi
To get started from a release, simply configure DUMPI using an MPI compiler.
To get started from a git download, run
./bootstrap.sh
You can then configure using any MPI compiler.
Once installed, simply add
-L$(PATH_TO_DUMPI) -ldumpi
to the LDFLAGS for your project. This will automatically embed DUMPI hooks into every MPI call. Run your application as normal, and DUMPI will generate a file for each MPI rank containing the trace in that folder. Trace collection is simple!
For trace replay, you will require the SST/macro tool. See the sst-macro repo and PDF manual for details on trace replay.
Under the terms of Contract DE-NA0003525 with NTESS, the U.S. Government retains certain rights in this software.