PROGRAMMATICALLY CONTROLLED DATA MULTICASTING ACROSS MULTIPLE COMPUTE ENGINES
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United States of America Patent
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Aug 29, 2024
app pub date -
May 10, 2024
filing date -
Mar 10, 2022
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This specification describes a programmatic multicast technique enabling one thread (for example, in a cooperative group array (CGA) on a GPU) to request data on behalf of one or more other threads (for example, executing on respective processor cores of the GPU). The multicast is supported by tracking circuitry that interfaces between multicast requests received from processor cores and the available memory. The multicast is designed to reduce cache (for example, layer 2 cache) bandwidth utilization enabling strong scaling and smaller tile sizes.
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