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As a first step toward the parallel execution analysis of FORTRAN programs, a tool called the Parallel Execution Profiler has been designed and implemented for the graphical postexecution analysis of parallel programs using the Parallel FORTRAN environment as a vehicle for both implementing parallel programs and tracing parallel events. The dynamic behavior of parallel execution is observed interactively in color graphs, which can be displayed concurrently with the source code, and in statistical summaries. This paper describes the implementation of our tool for parallel performance analysis with the aid of a parallelized application program from plasma physics.
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