NDLI: Parallel performance study of Monte Carlo photon transport code on shared-, distributed-, and distributed-shared-memory architectures

Content Provider	IEEE Xplore Digital Library
Author	Majumdar, A.
Copyright Year	2000
Description	Author affiliation: Supercomput. Center, California Univ., San Diego, La Jolla, CA, USA (Majumdar, A.)
Abstract	We have parallelized a Monte Carlo photon transport algorithm. Three different parallel versions of the algorithm were developed. The first version is for the Tera Multi-Threaded Architecture (MTA) and uses Tera specific directives. The second version, which uses MPI library calls, has been implemented on both the CRAY T3E and the 8-way SMP IBM SP with Power3 processors. The third version is a hybrid MPI-OpenMP implementation and is used on the SMP IBM SP. This version uses MPI to communicate between nodes and OpenMP to perform shared memory operations among processors within a node. We explain the three different parallelization approaches and present parallel performance results of these three parallel implementations on three different machines. We observe near perfect speedup for the three versions on the three architectures. The results on the SMP IBM SP suggest that the hybrid MPI-OpenMP programming is suitable for SMP type machines.
Starting Page	93
Ending Page	99
File Size	96539
Page Count	7
File Format	PDF
ISBN	0769505740
DOI	10.1109/IPDPS.2000.845969
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-05-01
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monte Carlo methods Parallel architectures Message passing Plasma simulation Plasma temperature Computer architecture Parallel programming Plasma confinement Plasma density Plasma transport processes
Content Type	Text
Resource Type	Article

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