Override vLLM classes for PP#1401
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Signed-off-by: Chenyaaang <chenyangli@google.com>
Signed-off-by: Chenyaaang <chenyangli@google.com>
Signed-off-by: Chenyaaang <chenyangli@google.com>
Signed-off-by: Chenyaaang <chenyangli@google.com>
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lorriexingfang
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Feb 26, 2026
Signed-off-by: Chenyaaang <chenyangli@google.com> Signed-off-by: Xing Fang <xing.fang@anyscale.com>
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Description
Changes related to PP according to vLLM upstream PR vllm-project/vllm#28506.
MultiprocExecutorclass for TPU to support MPMD in Pipeline Parallelism, while keeping SPMD for the rest parallelisms (TP, DP, CP, EP). The class inherits vllm's MultiprocExecutorget_pp_groupwith Jax'sget_pp_groupinvllm_model_wrapper.pyTests
Verified PP E2E test passed on both torchax and Jax models.
Tested CI (using the tpu_inference changes + PP forked branch in vllm) passed: https://buildkite.com/tpu-commons/tpu-inference-ci/builds/8192
Checklist
Before submitting this PR, please make sure: