MultIO: A Framework for Message-Driven Data Routing For Weather and Climate Simulations

Le résumé fourni par la source

In numerical weather prediction and high-performance computing, the primary computational bottleneck has gradually evolved from floating-point arithmetic to the throughput of data to and from the storage. This phenomenon is commonly referred to as the I/O performance gap. We present MultIO, a set of software libraries that provide two mechanisms to mitigate this effect: an asynchronous I/O-server to decouple data output from model computations, and user-programmable processing pipelines that operate on model output directly.

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