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OwnerMaged M. Michael, Ashwini Nanda +1inventors
InventorsMAGED M. MICHAEL, ASHWINI NANDA, DOUGLAS J. JOSEPH
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A method and structure for a system for maintaining coherence of cache lines in a shared memory multiplexor system comprises a system area network and a plurality of compute nodes connected to the system area network. Each of the compute nodes includes a local main memory, a local shared cache and a local coherence controller and compute nodes external to a given compute node include external shared caches and the coherence controller includes shadow directories, each corresponding to one of the external shared caches. Each of the shadow directories includes state information of the local main memory cached in the external shared caches. The shadow directories include only state information of the local main memory cached in the external shared caches.
A system for maintaining coherence of cache lines in a shared memory multiplexor system comprising:
A coherence controller for maintaining coherence of cache lines in a shared memory multiplexor system that includes a system area network and a plurality of compute nodes connected to said system area network, wherein each of said compute nodes includes a main memory, a shared cache and said coherence controller, said coherence controller comprising:
A method for maintaining coherence of cache lines in a shared memory multiplexor system that includes a system area network and a plurality of compute nodes connected to said system area network, wherein each of said compute nodes includes a main memory, a shared cache and a coherence controller, said method comprising:
A program storage device readable by machine, tangibly embodying a program of instructions executable by said machine to perform method steps for maintaining coherence of cache lines in a shared memory multiplexor system that includes a system area network and a plurality of compute nodes connected to said system area network, wherein each of said compute nodes includes a main memory, a shared cache and a coherence controller, said method comprising:
Dependencies are inferred from the claim text.