ANDREW KENNETH MARTIN - Austin TX, US Michael David Kistler - Austin TX, US Robert W. Wisniewski - Ossining NY, US
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G06F 12/00
US Classification:
711141, 711E12026
Abstract:
A method, system, and computer usable program product for local synchronization in a memory hierarchy in a multi-core data processing system are provided in the illustrative embodiments. A request to acquire a reservation for a reservation granule is received at a first core. The reservation is acquired in a first local cache associated with the first core in response to a cache line including the reservation granule being present and writable in the first local cache. A conditional store request to store at the reservation granule is received at the first core. A determination is made whether the reservation remains held at the first local cache. The store operation is performed at the first local cache responsive to reservation remaining held at the first local cache.
Robert Wisniewski, Intel's technical lead and principal investigator for Aurora, has left the semiconductor giant for a new HPC role at Samsung's research and development division, according to a Tuesday post he wrote on LinkedIn. While Samsung's research arm focuses on many elements important to HP