G - Physics – 06 – F
Patent
G - Physics
06
F
354/234
G06F 13/18 (2006.01) G06F 12/02 (2006.01)
Patent
CA 1323449
ABSTRACT OF THE DISCLOSURE A system for sharing a memory between multiple processors divides the memory into a plurality of sections, subsections and banks and provides a CPU to memory path between each CPU and each section of memory. Each CPU may generate references to the memory from any one of four ports, which are multiplexed to the memory paths and onto the sections of memory. The system provides that each CPU has an associated register in each subsection of memory and that each CPU can make no more than one reference to a subsection at a time. Reference conflict resolution means are provided at the CPU level to arbitrate conflicts between ports in the CPUs attempting to reference the same section or subsection in the memory. Reference conflict resolution means are provided at the subsection level of the memory to arbitrate conflicts between different CPUs attempting to reference the same banks of memory.
612227
Cray Research Inc.
Gowling Lafleur Henderson Llp
Schiffleger Alan J.
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