What is GASPI?

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GASPI is a Partitioned Global Address Space (PGAS) API. It aims at scalable, flexible and failure tolerant computing in massively parallel environments.  GASPI targets a paradigm shift from bulk-synchronous two-sided communication patterns towards an asynchronous communication and execution model. To that end GASPI leverages one-sided RDMA-driven communication with remote completion in a Partitioned Global Address Space.