Communication Characteristics of Large-Scale Scientific Applications for Contemporary Cluster Architectures

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Provided by: North Carolina State University
Topic: Hardware
Format: PDF
In this paper, the authors examine the explicit communication characteristics of several sophisticated scientific applications, which, by themselves, constitute a representative suite of publicly available benchmarks for large cluster architectures. By focusing on the Message Passing Interface (MPI) and by using hardware counters on the microprocessor, they observe each application's inherent behavioral characteristics: point-to-point and collective communication, and floating-point operations. Furthermore, they explore the sensitivities of these characteristics to both problem size and number of processors.
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