NPAC Technical Report SCCS-102

Parallel Cluster Algorithms

P.D. Coddington and C.F. Baillie

October 1990

Published in Proc. of the Int. Conf. on Lattice Field Theory, Tallahassee, FL (October 1990), Nucl. Phys. B (Proc. Suppl.) 20, 76 (1991).

© Copyright Elsevier Science.


Abstract

Cluster update algorithms dramatically reduce critical slowing down in spin models, but unlike the standard Metropolis algorithm, it is not obvious how to implement these algorithms efficiently on parallel or vector computers. Here we present two different parallel implementations of the Swendsen-Wang algorithm which give reasonable efficiencies on various MIMD parallel computers.


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