Parallel application memory scheduling
Eiman Ebrahimi, Rustam Miftakhutdinov, Chris Fallin, Chang Joo Lee, José A. Joao, Onur Mutlu, Yale N. Patt · 2011
A primary use of chip-multiprocessor (CMP) systems is to speed up a single application by exploiting thread-level parallelism. In such systems, threads may slow each other down by issuing memory requests that interfere in the shared memory subsystem. This inter-thread memory system interference can significantly degrade parallel application performance. Better memory request scheduling may mitigate such performance degradation. However, previously proposed memory scheduling algorithms for CMPs are designed for multi-programmed workloads where each core runs an independent application, and thus do not take into account the inter-dependent nature of threads in a parallel application.