Performance of the Shallow Water Equations on the SUPRENUM-1 Parallel Supercomputer
COLORADO UNIV AT BOULDER DEPT OF COMPUTER SCIENCE
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We describe the implementation of a fluid dynamical benchmark on the 256 node SUPRENUM-1 parallel computer. The benchmark, the Shallow Water Equations, is frequently used as a model for both oceanographic and atmospheric circulation. We describe the steps involved in implementing the algorithm on the SUPRENUM-1 and we provide details of performance. We have measured 4.95 Mflops 64-bit arithmetic for single node performance, and 1200 Miflops aggregate performance with 256 nodes, at efficiencies up to 96. This compares well with vector and MIMD supercomputers. Performance of 1530 Mflops was measured for the same algorithm on the CRAY YMP8, and 543 Mflops was measured on the 128-node Intel iPSC860. The SIMD Thinking Machines CM-200 delivers 5.25 Gflops 64-bit and 8.09 Gflops 32-bit for iie benchmark.
- Numerical Mathematics
- Fluid Mechanics