Microtasking on IBM multiprocessors
IBM Journal of Research and Development
ICS '88 Proceedings of the 2nd international conference on Supercomputing
IBM Systems Journal
Engineering Design of the Convex C2
Computer
Cray Y-MP C90: system features and early benchmark results
Parallel Computing
High-speed storage control schemes of HITACHI supercomputer S-820 system
ICS '89 Proceedings of the 3rd international conference on Supercomputing
Computer Architecture and Parallel Processing
Computer Architecture and Parallel Processing
Distributed storage control unit for the Hitachi S-3800 multivector supercomputer
ICS '94 Proceedings of the 8th international conference on Supercomputing
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This paper discusses the architecture of the new Hitachi supercomputer series, which is capable of achieving 8 GFLOPS in each of up to four processors. This architecture provides high-performance processing for fine-grain parallelism, and it allows efficient parallel processing even in an undedicated environment. It also features the newly-developed time-limited spin-loop synchronization, which combines spin-loop synchronization with operating system primitives, and a communication buffer (CB) which caches shared variables for synchronization, thus allowing them to be accessed faster. Three new instructions take advantage of the CB in order to reduce the parallel overhead. The results of performance measurements confirm the effectiveness of the CB and the new instructions.