Update multi-gpu notebook to set cupy device#675
Merged
marcromeyn merged 3 commits intoNVIDIA-Merlin:mainfrom Apr 18, 2023
Merged
Update multi-gpu notebook to set cupy device#675marcromeyn merged 3 commits intoNVIDIA-Merlin:mainfrom
marcromeyn merged 3 commits intoNVIDIA-Merlin:mainfrom
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marcromeyn
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Apr 18, 2023
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Depends on NVIDIA-Merlin/dataloader#135.
Goals ⚽
Update the multi-gpu training notebook to work with the new version of the Merlin dataloader.
Implementation Details 🚧
The new dataloader keeps the data in cupy arrays and converts each batch to torch tensors at the last minute, while the old dataloader converted everything to torch tensors as soon as the dataset was loaded from dask-cudf. Since we are using cupy in the dataloader now, we have to ensure that cupy uses the correct device by using
cupy.cuda.Device. This should ideally be set inmerlin.io.Datasetso users don't have to set this, but we add this to the notebook as a short-term workaround.Testing Details 🔍