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Periscope is a distributed automatic online performance analysis system for large scale parallel systems. It consists of a set of analysis agents distributed on the parallel machine. This article presents the approach taken on the ALTIX 4700 supercomputer at LRZ to distribute the analysis agents and the application processes on to the set of processors assigned to a parallel job by the batch scheduling system. An optimized mapping reducing the distance between the analysis agents and the application processes is computed based on the topology information of the processors. This mapping is then implemented via the dplace command on the Altix.
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