Abstract
The performance of clusters of IBM RISC System/6000 family of workstations in a quantum chemical application (electron correlation energy calculations using concurrent computation many-body perturbation theory) is assessed. The Parallel Virtual Machine System (PVM) is used to distribute various parts of the calculation among the workstations. The use of both homogeneous and heterogeneous clusters of workstations is investigated. The performance characteristics are compared with data recently obtained for the CRAY Y-MP C-90 and NEC SX-3/44 computers.
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