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Keywords: TAU, TAUg, global data acsess, performance monitoring, online performance adaption
To enable a scalable parallel application to view its global performance state, we designed and developed TAUg, a portable runtime framework layered on the TAU parallel performance system. TAUg leverages the MPI library to communicate between application processes, creating an abstraction of a global performance space from which profile views can be retrieved. We describe the TAUg design and implementation and show its use on two test benchmarks up to 512 processors. Overhead evaluation for the use of TAUg is included in our analysis. Future directions for improvement are discussed.
Modified: Thu Aug 9 11:05:27 US/Pacific 2007
Created: Wed Jun 20 10:44:13 US/Pacific 2007
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