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NASA Technical Reports Server (NTRS) 20040084674: Comparison of Ori... |
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by NASA Technical Reports Server (NTRS) |
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This report describes results of benchmark tests on the |
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Origin 3000 system currently being installed at the NASA |
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Ames National Advanced Supercomputing facility. This |
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machine will ultimately contain 1024 R14K processors. The |
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first part of the system, installed in November, 2000 and |
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named mendel, is an Origin 3000 with 128 R12K processors. |
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For comparison purposes, the tests were also run on |
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lomax, an Origin 2000 with R12K processors. The BT, LU, |
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and SP application benchmarks in the NAS Parallel |
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Benchmark Suite and the kernel benchmark FT were chosen |
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to determine system performance and measure the impact of |
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changes on the machine as it evolves. Having been written |
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to measure performance on Computational Fluid Dynamics |
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applications, these benchmarks are assumed appropriate to |
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represent the NAS workload. Since the NAS runs both |
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message passing (MPI) and shared-memory, compiler |
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directive type codes, both MPI and OpenMP versions of the |
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benchmarks were used. The MPI versions used were the |
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latest official release of the NAS Parallel Benchmarks, |
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version 2.3. The OpenMP versiqns used were PBN3b2, a beta |
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version that is in the process of being released. NPB 2.3 |
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and PBN 3b2 are technically different benchmarks, and NPB |
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results are not directly comparable to PBN results. |
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Date Published: 2016-10-19 10:08:00 |
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Identifier: NASA_NTRS_Archive_20040084674 |
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Item Size: 8808185 |
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Language: english |
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Media Type: texts |
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