We present DRASync, a region-based allocator that implements a global address space abstraction for MPI programs with pointer-based data structures. The main features of DRASync are: (a) it amortizes communication among nodes to allow efficient parallel allocation in a global address space; (b) it takes advantage of bulk deallocation and good locality with pointer-based data structures; (c) it supports ownership semantics of regions by nodes akin to reader–writer locks, which makes for a high-level, intuitive synchronization tool in MPI programs, without sacrificing message-passing performance. We evaluate DRASync against a state-of-the-art distributed allocator and find that it produces comparable performance while offering a higher-level abstraction to programmers.
|Number of pages||9|
|Journal||International Journal of High Performance Computing Applications|
|Publication status||Published - Nov 2014|
Symeonidou, C., Pratikakis, P., Nikolopoulos, D. S., & Bilas, A. (2014). Distributed Region-Based Memory Allocation and Synchronization. International Journal of High Performance Computing Applications, 28(4), 406-414. https://doi.org/10.1177/1094342014552863