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http://www.ss.isc.tohoku.ac.jp
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The supercomputing system in our center is one of the cyber infrastructures for academic sciences and engineering communities in Japan. We strongly support cutting-edge researches with advanced high-performance computing environments. The supercomputing system consists of a vector-parallel system and a scalar-parallel system. The total peak performance of our system reaches 31.2Tflop/s with high processing capabilities and huge memory spaces for scientific applications.
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Vector-Parallel Supercomputer
NEC SX-9 |
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In combination with high memory bandwidth for a large shared memory space, vector processors of the supercomputer realize very efficient processing for computation-intensive, large-scale applications. The SX-9 system consists of 18 SMP nodes, and each node has 16 vector processors sharing a large memory space of 1TB. The 16 nodes of our system are interconnected via a custom designed high-bandwidth crossbar network named IXS (Interconnected Crossbar Switch) at 256 GB/s (bidirectional). As each processor has a peak performance of 102.4 Gflop/s, the total performance of the system reaches 29.4 Tflop/s. In 2008, our SX-9 system achieves total 19 top scores in 28 test of HPC challenge benchmark.
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Vector Supercomputer SX-9
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Scalar-Parallel Supercomputer
NEC Express 5800 |
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The Express 5800 system employs 24 Intel Nehalem-EX CPUs (192 cores) with 3 TB of total memory. The system achieves a total performance of 1,74Tflop/s. Each CPU has peak performance of 289.92Gflop/s and 32-way parallel processing with 512GB memory is available at one computing node. The Express 5800 is effective for processing programs, which are non-vectorizable and have high instruction-level and thread-level parallelisms. Also, this system works as a front-end server of the SX-9 system.
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Scalar Supercomputer Express 5800
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