Performance Evaluation of Cache Coherence Scheme for Data Allocation Methods
Dong-Kwang Lee, Hyek-Seong Kweon, Byoungchul Ahn · Jeongbo gwahaghoe nonmunji. si'seu'tem mich i'lon · 2000
The locality of data references at the distributed shared memory systems affects the performance significantly. Data allocation methods by considering the locality of data references can improve the performance of DSM systems. This paper evaluates the performance for the dynamic limited directory scheme which data allocation methods can apply very effectively. The information of the data allocation is used by the dynamic limited directory scheme to set the presence bit effectively. And the proper use of the presence bit improves the performance by reducing memory overhead and using directory pool efficiently. Simulations are conducted using three application programs which have various data sharing. The results show that the optimal data allocation method improves the performance up to 3.6 times in the proposed scheme.