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- W2085700809 abstract "We present results for the BECAUSE Benchmark Set (BBS) on two machines, the Intel iPSC/2 and iPSC/860. These computers are of similar design and architecture, both being MIMD machines with processors connected together in a hypercube topology and supporting efficient through routing of messages. The software environment on the two machines is also very similar with support for a range of basic communication operations. The main difference between the machines lies in the processor used on each node, which on the iPSC/2 is an Intel 386 (plus FPU) while the iPSC/860 uses a state of the art i860 chip. It is shown that the basic floating point performance of the iPSC/2 is no longer competitive with current workstations such as the IBM RS6000/320. On the other hand, a single node of iPSC/860 is found to give comparable performance to such workstations. The communication performance of the machines for long messages is very similar (2.8 Mbytes/sec.), which is reasonable for the iPSC/2 but is found to present problems on the iPSC/860 in some of the benchmark tests. Results for other aspects of communication performance including overlap with computation and access to the concurrent file system are also presented. The scalability of the performance when using multiple nodes on both machines is examined for the Class 2 and 3 BBS tests and comparisons made with the reference machine. Some aspects of the implementations used for the parallel versions of the tests are discussed." @default.
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- W2085700809 date "1995-02-01" @default.
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- W2085700809 title "BBS results for the iPSC/2 and iPSC/860" @default.
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- W2085700809 doi "https://doi.org/10.1016/0167-739x(94)00047-i" @default.
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