feat: add multi-GPU–friendly default for vLLM/Unsloth engine setup#483
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ansh-info wants to merge 1 commit intoOpenPipe:mainfrom
Closed
feat: add multi-GPU–friendly default for vLLM/Unsloth engine setup#483ansh-info wants to merge 1 commit intoOpenPipe:mainfrom
ansh-info wants to merge 1 commit intoOpenPipe:mainfrom
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Co-authored-by: Apoorva Gupta <[email protected]>
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• Summary
Default vLLM/Unsloth tensor_parallel_size to the number of visible GPUs (respects CUDA_VISIBLE_DEVICES) so multi-GPU setups don’t start with an unset/invalid TP world size.
Still allows explicit overrides via _internal_config["engine_args"].
Motivation
On multi-GPU H100 machines, vLLM was crashing during init when TP wasn’t configured; setting a sensible default prevents a TP=0/None startup.
Details
In get_model_config, set engine_args["tensor_parallel_size"] = torch.cuda.device_count() (or 1 if CUDA unavailable) before merging user overrides.