Efficient Synchronization for Nonuniform Communication Architectures
Z. Radović, Erik Hägersten · 2002
Scalable parallel computers are often nonuniform communication architectures (NUCAs), where the access time to other processor's caches vary with their physical location. Still, few attempts of exploring cache-to-cache communication locality have been made. This paper introduces a new kind of synchronization primitives (lock-unlock) that favor neighboring processors when a lock is released. This improves the lock handover time as well as access time to the shared data of the critical region.