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|Title||A Multithreaded Communication Substrate for OpenSHMEM|
|Publication Type||Conference Paper|
|Year of Publication||2014|
|Authors||Bouteiller, A., T. Herault, and G. Bosilca|
|Conference Name||8th International Conference on Partitioned Global Address Space Programming Models (PGAS)|
|Conference Location||Eugene, OR|
OpenSHMEM scalability is strongly dependent on the capa- bility of its communication layer to efficiently handle multi- ple threads. In this paper, we present an early evaluation of the thread safety specification in the Unified Common Com- munication Substrate (UCCS) employed in OpenSHMEM. Results demonstrate that thread safety can be provided at an acceptable cost and can improve efficiency for some op- erations, compared to serializing communication.