Intel Corporation

Carl J Beckmann

Christopher J Hughes

Robert G Blankenship

Samantika S Sury

Chyi-Chang Miao

Rahul Agrawal

Anthony-Trung D Nguyen

Lingxiang Xiang

Chitra Natarajan

Disclosed embodiments relate to atomic memory operations. In one example, an apparatus includes multiple processor cores, a cache hierarchy, a local execution unit, and a remote execution unit, and an adaptive remote atomic operation unit. The cache hierarchy includes a local cache at a first level and a shared cache at a second level. The local execution unit is to perform an atomic operation at the first level if the local cache is a storing a cache line including data for the atomic operation. The remote execution unit is to perform the atomic operation at the second level. The adaptive remote atomic operation unit is to determine whether to perform the first atomic operation at the first level or at the second level and whether to copy the cache line from the shared cache to the local cache.

Adaptive remote atomics

Embodiment of this disclosure provides a mechanism to use a portion of an inactive processing element's private cache as an extended last-level cache storage space to adaptively adjust the size of shared cache. In one embodiment, a processing device is provided. The processing device comprising a cache controller is to identify a cache line to evict from a shared cache. An inactive processing core is selected by the cache controller from a plurality of processing cores associated with the shared cache. Then, a private cache of the inactive processing core is notified of an identifier of a cache line associated with the shared cache. Thereupon, the cache line is evicted from the shared cache to install in the private cache.

Supporting adaptive shared cache management

A method of assembling executable instructions includes mapping a first file scope symbol table for a first source code file being assembled, the first file scope symbol table including a reference for each symbol declaration within each corresponding section of code, determining nested sections of code included in the first source code file, mapping a nested scope symbol table for each determined nested section of code, with each nested scope symbol table including a reference for each symbol declaration within each corresponding section of code and assembling a portion of an executable instruction that corresponds to a symbol reference included in a coded instruction, the portion of the executable instruction based on a symbol mapped by one of the symbol tables.

Symbolic assembly language

Growing community of inventors

Newton, MA, United States of America

Carl J Beckmann