Caching network fabric for high performance computing
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United States of America Patent
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Sep 3, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jul 14, 2017
filing date -
Jul 15, 2016
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Abstract
An apparatus and method exchange data between two nodes of a high performance computing (HPC) system using a data communication link. The apparatus has one or more processing cores, RDMA engines, cache coherence engines, and multiplexers. The multiplexers may be programmed by a user application, for example through an API, to selectively couple either the RDMA engines, cache coherence engines, or a mix of these to the data communication link. Bulk data transfer to the nodes of the HPC system may be performed using paged RDMA during initialization. Then, during computation proper, random access to remote data may be performed using a coherence protocol (e.g. MESI) that operates on much smaller cache lines.
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