Memory request/grant daemons in virtual nodes for moving subdivided local memory space from VN to VN in nodes of a massively parallel computer system
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United States of America Patent
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Mar 1, 2011
Grant Date -
Oct 30, 2008
app pub date -
Jul 11, 2008
filing date -
Aug 8, 2006
priority date (Note) -
Expired
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Abstract
A memory management mechanism a nodal having multiple processors in a massively parallel computer system dynamically configures nodal memory on demand. A respective variable-sized subdivision of nodal memory is associated with each processor in the node. A processor may request additional memory, and the other processor(s) may grant or veto the request. If granted, the requested memory is added to the subdivision of the requesting processor. A processor can only access memory within its own subdivision. Preferably, each subdivision contains a daemon which monitors memory usage and generates requests for additional memory.
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