Performance Evaluation of the Hitachi SR8000 Using OpenMP Benchmarks
ISHPC '02 Proceedings of the 4th International Symposium on High Performance Computing
A parallel 1-D FFT algorithm for the Hitachi SR8000
Parallel Computing
Performance evaluation of the hitachi SR8000 using SPEC OMP2001 benchmarks
International Journal of Parallel Programming - Special issue: OpenMP: Experiences and implementations
Proceedings of the 2004 ACM/IEEE conference on Supercomputing
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We have developed a superscalar RISC processor for the super technical server HITACHI SR8000. The processor includes architectural features specialized in scientific applications, in which massive amounts of data in the main memory must be processed. These features are a slide-windowed-registers scheme and a simultaneous execution of up to 16 prefetch instructions. The slide-windowed-registers scheme enables instructions of the processor to access any of 160 floating point registers (FPRs). The execution mechanism for prefetch instructions produces high efficiency of the out-of-order super-scalar processor despite the long latency of the main memory. A logic simulation showed that the performance of the processor reaches over 3 floating-point operations per cycle and the memory throughput of over 12 bytes per cycle.