The Tau Parallel Performance System
International Journal of High Performance Computing Applications
Bottleneck Detection in Parallel File Systems with Trace-Based Performance Monitoring
Euro-Par '08 Proceedings of the 14th international Euro-Par conference on Parallel Processing
Analysis of the MPI-IO optimization levels with the PIOViz Jumpshot enhancement
PVM/MPI'07 Proceedings of the 14th European conference on Recent Advances in Parallel Virtual Machine and Message Passing Interface
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With parallel file I/O we are faced with the situation that we do not have appropriate tools to get an insight into the I/O server behavior depending on the I/O calls in the corresponding parallel MPI program. We present an approach that allows us to also get event traces from the I/O server environment and to merge them with the client trace. Corresponding events will be matched and visualized. We integrate this functionality into the parallel file system PVFS2 and the MPICH2 tool Jumpshot.