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专利名称：Dynamic multi-mode parallel processor
array architecture computer system
发明人：Kogge, Peter Michael申请号：EP92118887.6申请日：19921104公开号：EP0544127A2公开日：19930602
专利附图：
摘要：A Parallel RISC computer system is provided by a multi-mode dynamic multi-mode parallel processor array with one embodiment illustrating a tightly coupled VLSIembodiment with an architecture which can be extended to more widely placed
processing elements through the interconnection network which couples multipleprocessors capable of MIMD mode processing to one another with broadcast ofinstructions to selected groups of units controlled by a controlling processor. Thecoupling of the processing elements logic enables dynamic mode assignment anddynamic mode switching, allowing processors operating in a SIMD mode to makemaximum memory and cycle time usage. On and instruction by instruction level basis,modes can be switched from SIMD to MIMD, and even into SISD mode on the controllingprocessor for inherently sequential computation allowing a programmer or complier tobuild a program for the computer system which uses the optimal kind of parallelism(SISD, SIMD, MIMD). Furthermore, this execution, particularly in the SIMD mode, can beset up for running applications at the limit of memory cycle time. With the ALLNODEswitch and alternatives paths a system can be dynamically achieved in a few cycles formany many processors. Each processing element and memory and has MIMD capabilitythe processor's an instruction register, condition register and program counter providecommon resources which are used in MIMD and SIMD. The program counter become abase register in SIMD mode. In one embodiment all instruction registers are coupled toform a common broadcast path, and in an alternative embodiment, the ALLNODE switchis utilized as an alternative path for broadcast to all processors coupled by theinterconnection network to be chosen as the system of choice.
申请人：International Business Machines Corporation
地址：Old Orchard Road Armonk, N.Y. 10504 US
国籍：US
代理机构：Schäfer, Wolfgang, Dipl.-Ing.
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