Method to efficiently prefetch and batch compiler-assisted...

Details Method to efficiently prefetch and batch compiler-assisted... Method to efficiently prefetch and batch compiler-assisted...

2006-08-18

2009-02-17

Kim, Hong (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S133000, C711S144000, C711S206000

Reexamination Certificate

active

07493452

ABSTRACT:
A method to efficiently pre-fetch and batch compiler-assisted software cache accesses is provided. The method reduces the overhead associated with software cache directory accesses. With the method, the local memory address of the cache line that stores the pre-fetched data is itself cached, such as in a register or well known location in local memory, so that a later data access does not need to perform address translation and software cache operations and can instead access the data directly from the software cache using the cached local memory address. This saves processor cycles that would otherwise be required to perform the address translation a second time when the data is to be used. Moreover, the system and method directly enable software cache accesses to be effectively decoupled from address translation in order to increase the overlap between computation and communication.

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