In the performance evaluation for parallel systems, modeling and generating the workload (i.e. the (set of) programs is one of the most important and crucial tasks. While benchmarks are frequently used to characterize the real workload in measurement studies, they often fail to adequately describe the real workload, that the analyst has in mind. What is needed is a support for generating synthetic workloads which are on the one hand able to characterize the real workload at the desired level of detail and which are on the other hand easy to construct. This paper describes a tool which has been designed and implemented with respect to these demands.
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