MCNP load balancing and fault tolerance with PVM
- Los Alamos National Lab., NM (United States)
Version 4A of the Monte Carlo neutron, photon, and electron transport code MCNP developed by Los Alamos National Laboratory supports distributed-memory multiprocessing through the parallel virtual machine (PVM) software package, version 3.1.4. Using PVM for interprocessor communication, MCNP can simultaneously execute a single problem on a cluster of UNIX-based workstations. This capability provided system efficiencies that exceed 80% on dedicated workstation clusters; however, on heterogeneous or multiuser systems, the performance was limited by the slowest processor (i.e., equal work was assigned to each processor). The next public release of MCNP will provide multiprocessing enhancements that include load balancing and fault tolerance, which are shown to dramatically increase multiuser system efficiency and reliability.
- OSTI ID:
- 411629
- Report Number(s):
- CONF-951006--
- Journal Information:
- Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 73; ISSN 0003-018X; ISSN TANSAO
- Country of Publication:
- United States
- Language:
- English
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