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We introduce and describe scientific workflows, i.e., executable descriptions of automatable scientific processes such as computational science simulations and data analyses. Scientific workflows are often expressed in terms of tasks and their (dataflow) dependencies. This chapter first provides an overview of the characteristic features of scientific(More)
A virtual test facility (VTF) for studying the three-dimensional dynamic response of solid materials subject to strong shock and detonation waves has been constructed as part of the research program of the Center for Simulating the Dynamic Response of Materials at the California Institute of Technology. The compressible fluid flow is simulated with a(More)
The Center for Simulating Dynamic Response of Materials at the California Institute of Technology is constructing a virtual shock physics facility for studying the response of various target materials to very strong shocks. The Virtual Test Facility (VTF) is an end-to-end, fully three-dimensional simulation of the detonation of high explosives (HE), shock(More)
Managing the large volumes of data produced by emerging scientific and engineering simulations running on leadership-class resources has become a critical challenge. The data has to be extracted off the computing nodes and transported to consumer nodes so that it can be processed, analyzed, visualized, archived, etc. Several recent research efforts have(More)
The Parallel Object-Oriented Methods and Applications (POOMA) Framework, written in ANSI/ISO C++, has demonstrated both great expressiveness and eecient code performance for large-scale scientiic applications on computing platforms ranging from workstations to massively parallel supercomputers. The POOMA Framework provides high-level abstractions for(More)
A Virtual Test Facility (VTF) for studying the three-dimensional dynamic response of solid materials subject to strong shock and detonation waves has been constructed as part of the research program of the Center for Simulating the Dynamic Response of Materials at the California Institute of Technology. The compressible fluid flow is simulated with a(More)
The DOE leadership facilities were established in 2004 to provide scientist capability computing for high-profile science. Since it's inception, the systems went from 14 TF to 1.8 PF, an increase of 100 in 5 years, and will increase by another factor of 100 in 5 more years. This growth, along with user policies, which enable scientist to run at, scale for(More)