Lazy Release Consistency for Software Distributed Shared Memory
Release consistency, a relaxed memory consistency model that reduces the impact of remote memory access latency in both software and hardware distributed shared memory, is considered. To reduce the number of messages and the amount of data exchanged for remote memory access, a lazy release consistency algorithm is introduced. It pulls modifications across the interconnect only when necessary. Trace-driven simulation using the SPLASH benchmarks indicates that lazy release consistency reduces both the number of messages and the amount of data transferred between processors. These reductions are especially significant for programs that exhibit false sharing and make extensive use of locks.
isca92.ps.pdf
openaccess
246.66 KB
Adobe PDF
f548ac01e6ab7dd15ee9d7b8f3c11c3c