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AssigneeSandbridge Technologies, Inc.
InventorsErdem Hokenek, Mayan Moudgill, C. John Glossner
Estimating the term…
Techniques for thread-based register file access by a multithreaded processor are disclosed. The multithreaded processor determines a thread identifier associated with a particular processor thread, and utilizes at least a portion of the thread identifier to select a particular portion of an associated register file to be accessed by the corresponding processor thread. In an illustrative embodiment, the register file is divided into even and odd portions, with a least significant bit or other portion of the thread identifier being used to select either the even or the odd portion for use by a given processor thread. The thread-based register file selection may be utilized in conjunction with token triggered threading and instruction pipelining. Advantageously, the invention reduces register file port requirements and thus processor power consumption, while maintaining desired levels of concurrency.
A method for accessing a register file associated with a multithreaded processor, the method comprising the steps of:
A multithreaded processor having an associated register file comprising at least first and second portions, the multithreaded processor being operative to determine a thread identifier associated with a particular thread of the multithreaded processor, and to utilize at least a portion of the thread identifier to select a particular one of the portions of the register file to be accessed by the corresponding processor thread.
An article of manufacture comprising a machine-readable storage medium having embodied thereon program code for use in accessing a register file associated with a multithreaded processor, wherein the program code when executed by the processor implements the steps of:
Dependencies are inferred from the claim text.