Chung-Shang Shao

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Strategies involving smoothing of the objective function have been used to help solve difficult global optimization problems arising in molecular chemistry. This paper proposes a new smoothing approach and examines some basic issues in smoothing for molecular configuration problems. We first propose a new, simple algebraic way of smoothing the Lennard-Jones(More)
The problem of nding the naturally occurring structure of a pro tein is believed to correspond to minimizing the free or potential energy of the protein This is generally a very di cult global optimizationproblem with a large number of parameters and a huge number of local minimizers includ ing many with function values near that of the global minimizer(More)
This paper presents an source-level software system, PMT, which performs task migrations for long-running parallel scientific computations among a network of architecturally different workstations. As machine loads vary through time in a nondedicated environment, application performance can be improved by utilizing task migrations. This system is designed(More)
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