Snapify: Capturing Snapshots of Offload Applications on Xeon Phi Manycore Processors

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Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
Intel Xeon Phi coprocessors provide excellent performance acceleration for highly parallel applications and have been deployed in several top-ranking supercomputers. One popular approach of programming the Xeon Phi is the offload model, where parallel code is executed on the Xeon Phi, while the host system executes the sequential code. However, Xeon Phi's Many integrated core Platform Software Stack (MPSS) lacks fault-tolerance support for offload applications. This paper introduces Snapify, a set of extensions to MPSS that provides three novel features for Xeon Phi offload applications: checkpoint and restart, process swapping, and process migration.
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