Enable multi-GPU inference in vLLM with tensor parallelism

[YuhanLiu11]

This PR introduces support for tensor parallelism in vLLM engines by modifying the Helm chart template to include shared memory configuration when tensorParallelSize is set. This enables multi-GPU execution with tensor parallelism degree of more than one.

FIX #95

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[ApostaC]

Can we also increase the minor version number in Chart.yaml (

production-stack/helm/Chart.yaml

Line 18 in d109e77

version: 0.0.3

)?
This is to update the release helm charts on the github pages.

[ApostaC]

Also, please fix the problems in the functionality test. Seems like there will be an error if $modelSpec.vllmConfig does not exist.

Thanks!

[YuhanLiu11]

Also, please fix the problems in the functionality test. Seems like there will be an error if $modelSpec.vllmConfig does not exist.

Thanks!

Fixing it now!

[Shaoting-Feng]

LGTM

[ApostaC]

LGTM!