Evaluation of a Multithreaded Architecture for Cellular Computing

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Evaluation of a Multithreaded Architecture for Cellular Computing
Cyclops is a new architecture for high performance parallel computers being developed at the IBM T. J. Watson Research Center. The basic cell of this architecture is a single-chip SMP system with multiple threads of execution, embedded memory, and integrated communications hardware. Massive intra-chip parallelism is used to tolerate memory and functional unit latencies. Large systems with thousands of chips can be built by replicating this basic cell in a regular pattern. In this paper we describe the Cyclops architecture and evaluate two of its new hardware features: memory hierarchy with flexible cache organization and fast barrier hardware. Our experiments with the STREAM benchmark show that a particular design can achieve a sustainable memory bandwidth of 40 GB/s, equal to the peak hardware bandwidth and similar to the performance of a 128-processor SGI Origin 3800. For small vectors, we have observed in-cache bandwidth above 80 GB/s. We also show that the fast barrier hardware ca...
Calin Cascaval, José G. Castaños, Lu
Added 01 Dec 2009
Updated 01 Dec 2009
Type Conference
Year 2002
Where HPCA
Authors Calin Cascaval, José G. Castaños, Luis Ceze, Monty Denneau, Manish Gupta, Derek Lieber, José E. Moreira, Karin Strauss, Henry S. Warren Jr.
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