Files
agentic-kvc/third_party/vllm/csrc/cub_helpers.h
Gahow Wang 445e491123 Add vLLM v0.18.1 source tree with KV transfer abort fix
third_party/vllm/ now tracked in git for direct patch management.
Based on vLLM v0.18.1 release with one patch applied:

  vllm/v1/core/sched/scheduler.py:
    Replace fatal assert with graceful skip when KV transfer callback
    arrives for an already-aborted request during PD disaggregated serving.

Future vLLM modifications should be made directly in third_party/vllm/
and committed normally. The patches/ directory is kept as documentation
of what changed from upstream.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-05-22 00:30:38 +08:00

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#pragma once
#ifndef USE_ROCM
#include <cub/cub.cuh>
#if CUB_VERSION >= 200800
#include <cuda/std/functional>
using CubAddOp = cuda::std::plus<>;
using CubMaxOp = cuda::maximum<>;
#else // if CUB_VERSION < 200800
using CubAddOp = cub::Sum;
using CubMaxOp = cub::Max;
#endif // CUB_VERSION
#else
#include <hipcub/hipcub.hpp>
namespace cub = hipcub;
using CubAddOp = hipcub::Sum;
using CubMaxOp = hipcub::Max;
#endif // USE_ROCM