Add disable_tensor_cache=True to HPUGraph capture #252
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michalkuligowski
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Sep 10, 2024
michalkuligowski
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Sep 17, 2024
After #252, HPUGraph capture takes much less memory, and we can reduce the memory reserved for HPUGraphs. On Llama3.1-8b-Instruct (G2), capturing 100% of prefill and decode graphs on BS=256 now takes 1.566 GB of HBM, which is far less than 40% (~30 GB) we reserve by default. This results in lots of unused (==wasted) memory, which could be used instead for more KV cache blocks.
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RuntimeErrors are not observed anymore on habana_main when disable_tensor_cache is used. This PR enables disable_tensor_cache.