Argonne National Laboratory's involvement in the Concurrent Supercomputing Consortium-the consortium that owns and operates the Touchstone DELTA System-has been motivated primarily by the need to make high-performance computing resources available to its computer science research groups and to those researchers using large-scale computation in their scientific work. Since early May 1991, when the Touchstone DELTA System (DELTA) was first installed at Caltech, Argonne has been actively using it to investigate a variety of scientific problems. In the present work, the author describes some experiences and progress in global climate modeling, computational biophysics, and computational quantum chemistry. He also draws some conclusions regarding the usability of machines like the DELTA.
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