Multiprocessor system having a shared memory with exclusive acce

Details Multiprocessor system having a shared memory with exclusive acce Multiprocessor system having a shared memory with exclusive acce

1994-02-24

1997-05-27

Kim, Matthew M.

395490, 395180, G06F 1300

Patent

active

056340370

ABSTRACT:
An exclusive control system is provided in a system having a memory module and a plurality of processing modules sharing the memory module, each of the plurality of processing modules exclusively accessing the memory module while prohibiting other processing modules from accessing the memory module. The exclusive control system includes a determination unit for determining whether or not a process executed in response to an access request from a processor module among the plurality of processing modules is normally completed in the memory module, and a retry unit for, when the determination unit determines that the process executed in response to the access request is not normally completed, retrying the process while maintaining a state in which other processing modules are prohibited from accessing the memory module.

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