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On distributed-memory systems, the quality of the data distribution has a crucial impact on the eeciency of the computation. Sophisticated visualization of large in-core and out-of-core data, and steering capabilities of the debugging system sig-niicantly reduce program development cycle, especially for irregular applications. In this paper we present an(More)
A critical performance issue for a number of scientific and engineering applications is the efficient transfer of data to secondary storage. Languages such as High Performance Fortran (HPF) have been introduced to allow programming distributed-memory systems at a relatively high level of abstraction. However, the present version of HPF does not provide(More)
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