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Parallelization Of The Worldline Quantum Monte Carlo Method

Author

Listed:
  • J.E. GUBERNATIS

    (Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A)

  • W.R. SOMSKY

    (Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A)

Abstract

The worldline quantum Monte Carlo method is a computational technique for studying the properties of many-electron and quantum-spin systems. In this paper, we describe our efforts in developing an efficient implementation of this method for the massively-parallel Connection Machine CM-2. We discuss why one must look beyond the obvious parallelism in the method in order to reduce interprocessor communication and increase processor utilization, and how these goals may be achieved using a plaquette-based data representation. We also present performance statistics for our implementation and sample calculations for the spinless fermion model.

Suggested Citation

  • J.E. Gubernatis & W.R. Somsky, 1992. "Parallelization Of The Worldline Quantum Monte Carlo Method," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 61-78.
    • Handle: RePEc:wsi:ijmpcx:v:03:y:1992:i:01:n:s0129183192000063
    DOI: 10.1142/S0129183192000063
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