mirror of
https://github.com/NVIDIA/TensorRT-LLM.git
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124 lines
4.3 KiB
C++
124 lines
4.3 KiB
C++
/*
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* Copyright (c) 2020-2025, NVIDIA CORPORATION. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef NVML_WRAPPER_H
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#define NVML_WRAPPER_H
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#include "tensorrt_llm/common/config.h"
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#include <nvml.h>
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#include <memory>
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TRTLLM_NAMESPACE_BEGIN
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namespace common
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{
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class NVMLWrapper
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{
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public:
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static std::shared_ptr<NVMLWrapper> getInstance();
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~NVMLWrapper();
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NVMLWrapper(NVMLWrapper const&) = delete;
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NVMLWrapper& operator=(NVMLWrapper const&) = delete;
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NVMLWrapper(NVMLWrapper&&) = delete;
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NVMLWrapper& operator=(NVMLWrapper&&) = delete;
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// Required NVML functions
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nvmlReturn_t nvmlInit() const;
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nvmlReturn_t nvmlShutdown() const;
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nvmlReturn_t nvmlDeviceGetHandleByIndex(unsigned int index, nvmlDevice_t* device) const;
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nvmlReturn_t nvmlDeviceGetHandleByPciBusId(char const* pciBusId, nvmlDevice_t* device) const;
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nvmlReturn_t nvmlDeviceGetIndex(nvmlDevice_t device, unsigned int* index) const;
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nvmlReturn_t nvmlDeviceGetNvLinkRemotePciInfo(nvmlDevice_t device, unsigned int link, nvmlPciInfo_t* pci) const;
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nvmlReturn_t nvmlDeviceGetNvLinkCapability(
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nvmlDevice_t device, unsigned int link, nvmlNvLinkCapability_t capability, unsigned int* capResult) const;
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nvmlReturn_t nvmlDeviceGetNvLinkState(nvmlDevice_t device, unsigned int link, nvmlEnableState_t* isActive) const;
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char const* nvmlErrorString(nvmlReturn_t result) const;
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nvmlReturn_t nvmlDeviceGetComputeRunningProcesses(
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nvmlDevice_t device, unsigned int* infoCount, nvmlProcessInfo_v2_t* infos) const;
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// Optional NVML functions (may be nullptr on older drivers)
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nvmlReturn_t nvmlDeviceGetGpuFabricInfoV(nvmlDevice_t device, nvmlGpuFabricInfoV_t* gpuFabricInfo) const;
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nvmlReturn_t nvmlDeviceGetGpuFabricInfo(nvmlDevice_t device, nvmlGpuFabricInfo_t* gpuFabricInfo) const;
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// Runtime availability checks
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bool hasGpuFabricInfoV() const;
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bool hasGpuFabricInfo() const;
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private:
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void* mHandle;
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NVMLWrapper();
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// Required function pointers
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nvmlReturn_t (*_nvmlInit)();
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nvmlReturn_t (*_nvmlShutdown)();
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nvmlReturn_t (*_nvmlDeviceGetHandleByIndex)(unsigned int, nvmlDevice_t*);
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nvmlReturn_t (*_nvmlDeviceGetHandleByPciBusId)(char const*, nvmlDevice_t*);
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nvmlReturn_t (*_nvmlDeviceGetIndex)(nvmlDevice_t, unsigned int*);
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nvmlReturn_t (*_nvmlDeviceGetNvLinkRemotePciInfo)(nvmlDevice_t, unsigned int, nvmlPciInfo_t*);
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nvmlReturn_t (*_nvmlDeviceGetNvLinkCapability)(nvmlDevice_t, unsigned int, nvmlNvLinkCapability_t, unsigned int*);
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nvmlReturn_t (*_nvmlDeviceGetNvLinkState)(nvmlDevice_t, unsigned int, nvmlEnableState_t*);
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char const* (*_nvmlErrorString)(nvmlReturn_t);
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nvmlReturn_t (*_nvmlDeviceGetComputeRunningProcesses)(nvmlDevice_t, unsigned int*, nvmlProcessInfo_v2_t*);
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// Optional function pointers (may be nullptr)
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nvmlReturn_t (*_nvmlDeviceGetGpuFabricInfoV)(nvmlDevice_t, nvmlGpuFabricInfoV_t*);
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nvmlReturn_t (*_nvmlDeviceGetGpuFabricInfo)(nvmlDevice_t, nvmlGpuFabricInfo_t*);
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};
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// RAII class that initializes NVML on construction and shuts down on destruction.
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// Replaces duplicated NvmlManager classes in allreduceOp.cpp and allreducePlugin.cpp.
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class NvmlManager
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{
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public:
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NvmlManager()
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: mNvml(NVMLWrapper::getInstance())
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{
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auto result = mNvml->nvmlInit();
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if (result != NVML_SUCCESS)
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{
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TLLM_THROW("Failed to initialize NVML: %s", mNvml->nvmlErrorString(result));
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}
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}
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~NvmlManager()
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{
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mNvml->nvmlShutdown();
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}
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NVMLWrapper const& wrapper() const
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{
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return *mNvml;
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}
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std::shared_ptr<NVMLWrapper> const& sharedWrapper() const
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{
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return mNvml;
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}
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private:
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std::shared_ptr<NVMLWrapper> mNvml;
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};
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} // namespace common
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TRTLLM_NAMESPACE_END
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#endif // NVML_WRAPPER_H
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