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221 lines
9.4 KiB
C
221 lines
9.4 KiB
C
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#ifndef _NVML_H
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#define _NVML_H
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/**
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* Declarations from nvml.h
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*/
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typedef struct nvmlDevice_st* nvmlDevice_t;
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typedef struct nvmlPciInfo_st
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{
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char busId[16]; //!< The tuple domain:bus:device.function PCI identifier (& NULL terminator)
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unsigned int domain; //!< The PCI domain on which the device's bus resides, 0 to 0xffff
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unsigned int bus; //!< The bus on which the device resides, 0 to 0xff
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unsigned int device; //!< The device's id on the bus, 0 to 31
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unsigned int pciDeviceId; //!< The combined 16-bit device id and 16-bit vendor id
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// Added in NVML 2.285 API
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unsigned int pciSubSystemId; //!< The 32-bit Sub System Device ID
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// NVIDIA reserved for internal use only
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unsigned int reserved0;
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unsigned int reserved1;
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unsigned int reserved2;
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unsigned int reserved3;
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} nvmlPciInfo_t;
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typedef struct nvmlUtilization_st {
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unsigned int gpu; // GPU kernel execution last second, percent
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unsigned int memory; // GPU memory read/write last second, percent
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} nvmlUtilization_t;
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typedef enum nvmlTemperatureSensors_enum {
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NVML_TEMPERATURE_GPU = 0 // Temperature sensor for the GPU die
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} nvmlTemperatureSensors_t;
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typedef enum nvmlReturn_enum {
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NVML_SUCCESS = 0, // The operation was successful
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NVML_ERROR_UNINITIALIZED = 1, // NVML was not first initialized with nvmlInit()
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NVML_ERROR_INVALID_ARGUMENT = 2, // A supplied argument is invalid
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NVML_ERROR_NOT_SUPPORTED = 3, // The requested operation is not available on target device
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NVML_ERROR_NO_PERMISSION = 4, // The current user does not have permission for operation
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NVML_ERROR_ALREADY_INITIALIZED = 5, // Deprecated: Multiple initializations are now allowed through ref counting
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NVML_ERROR_NOT_FOUND = 6, // A query to find an object was unsuccessful
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NVML_ERROR_INSUFFICIENT_SIZE = 7, // An input argument is not large enough
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NVML_ERROR_INSUFFICIENT_POWER = 8, // A device's external power cables are not properly attached
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NVML_ERROR_DRIVER_NOT_LOADED = 9, // NVIDIA driver is not loaded
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NVML_ERROR_TIMEOUT = 10, // User provided timeout passed
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NVML_ERROR_UNKNOWN = 999 // An internal driver error occurred
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} nvmlReturn_t;
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typedef enum nvmlClockType_enum {
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NVML_CLOCK_GRAPHICS = 0,
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NVML_CLOCK_SM = 1,
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NVML_CLOCK_MEM = 2
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} nvmlClockType_t;
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typedef enum nvmlTemperatureThresholds_enum
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{
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NVML_TEMPERATURE_THRESHOLD_SHUTDOWN = 0, // Temperature at which the GPU will shut down
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// for HW protection
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NVML_TEMPERATURE_THRESHOLD_SLOWDOWN = 1, // Temperature at which the GPU will begin slowdown
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// Keep this last
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NVML_TEMPERATURE_THRESHOLD_COUNT
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} nvmlTemperatureThresholds_t;
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/**
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* Compute mode.
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*
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* NVML_COMPUTEMODE_EXCLUSIVE_PROCESS was added in CUDA 4.0.
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* Earlier CUDA versions supported a single exclusive mode,
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* which is equivalent to NVML_COMPUTEMODE_EXCLUSIVE_THREAD in CUDA 4.0 and beyond.
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*/
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typedef enum nvmlComputeMode_enum
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{
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NVML_COMPUTEMODE_DEFAULT = 0, //!< Default compute mode -- multiple contexts per device
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NVML_COMPUTEMODE_EXCLUSIVE_THREAD = 1, //!< Compute-exclusive-thread mode -- only one context per device, usable from one thread at a time
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NVML_COMPUTEMODE_PROHIBITED = 2, //!< Compute-prohibited mode -- no contexts per device
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NVML_COMPUTEMODE_EXCLUSIVE_PROCESS = 3, //!< Compute-exclusive-process mode -- only one context per device, usable from multiple threads at a time
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// Keep this last
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NVML_COMPUTEMODE_COUNT
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} nvmlComputeMode_t;
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/**
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* GPU Operation Mode
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*
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* GOM allows to reduce power usage and optimize GPU throughput by disabling GPU features.
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*
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* Each GOM is designed to meet specific user needs.
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*/
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typedef enum nvmlGom_enum
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{
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NVML_GOM_ALL_ON = 0, //!< Everything is enabled and running at full speed
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NVML_GOM_COMPUTE = 1, //!< Designed for running only compute tasks. Graphics operations
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//!< are not allowed
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NVML_GOM_LOW_DP = 2 //!< Designed for running graphics applications that don't require
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//!< high bandwidth double precision
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} nvmlGpuOperationMode_t;
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/***************************************************************************************************/
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/** @addtogroup nvmlClocksThrottleReasons
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* @{
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*/
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/***************************************************************************************************/
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/** Nothing is running on the GPU and the clocks are dropping to Idle state
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* \note This limiter may be removed in a later release
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*/
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#define nvmlClocksThrottleReasonGpuIdle 0x0000000000000001LL
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/** GPU clocks are limited by current setting of applications clocks
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*
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* @see nvmlDeviceSetApplicationsClocks
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* @see nvmlDeviceGetApplicationsClock
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*/
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#define nvmlClocksThrottleReasonApplicationsClocksSetting 0x0000000000000002LL
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/**
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* @deprecated Renamed to \ref nvmlClocksThrottleReasonApplicationsClocksSetting
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* as the name describes the situation more accurately.
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*/
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#define nvmlClocksThrottleReasonUserDefinedClocks nvmlClocksThrottleReasonApplicationsClocksSetting
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/** SW Power Scaling algorithm is reducing the clocks below requested clocks
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*
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* @see nvmlDeviceGetPowerUsage
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* @see nvmlDeviceSetPowerManagementLimit
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* @see nvmlDeviceGetPowerManagementLimit
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*/
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#define nvmlClocksThrottleReasonSwPowerCap 0x0000000000000004LL
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/** HW Slowdown (reducing the core clocks by a factor of 2 or more) is engaged
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*
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* This is an indicator of:
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* - temperature being too high
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* - External Power Brake Assertion is triggered (e.g. by the system power supply)
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* - Power draw is too high and Fast Trigger protection is reducing the clocks
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* - May be also reported during PState or clock change
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* - This behavior may be removed in a later release.
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*
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* @see nvmlDeviceGetTemperature
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* @see nvmlDeviceGetTemperatureThreshold
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* @see nvmlDeviceGetPowerUsage
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*/
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#define nvmlClocksThrottleReasonHwSlowdown 0x0000000000000008LL
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/** Some other unspecified factor is reducing the clocks */
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#define nvmlClocksThrottleReasonUnknown 0x8000000000000000LL
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/** Bit mask representing no clocks throttling
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*
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* Clocks are as high as possible.
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* */
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#define nvmlClocksThrottleReasonNone 0x0000000000000000LL
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/*
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* End of declarations from nvml.h
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**/
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typedef nvmlDevice_t HM_ADAPTER_NVML;
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#if defined(_WIN32) || defined(__WIN32__)
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#define NVML_API_CALL __stdcall
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#else
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#define NVML_API_CALL
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#endif
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typedef const char * (*NVML_API_CALL NVML_ERROR_STRING) (nvmlReturn_t);
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typedef int (*NVML_API_CALL NVML_INIT) (void);
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typedef int (*NVML_API_CALL NVML_SHUTDOWN) (void);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_COUNT) (unsigned int *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_NAME) (nvmlDevice_t, char *, unsigned int);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_HANDLE_BY_INDEX) (unsigned int, nvmlDevice_t *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_TEMPERATURE) (nvmlDevice_t, nvmlTemperatureSensors_t, unsigned int *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_FAN_SPEED) (nvmlDevice_t, unsigned int *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_UTILIZATION_RATES) (nvmlDevice_t, nvmlUtilization_t *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_CLOCKINFO) (nvmlDevice_t, nvmlClockType_t, unsigned int *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_THRESHOLD) (nvmlDevice_t, nvmlTemperatureThresholds_t, unsigned int *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_CURRPCIELINKGENERATION) (nvmlDevice_t, unsigned int *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_CURRPCIELINKWIDTH) (nvmlDevice_t, unsigned int *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_CURRENTCLOCKSTHROTTLEREASONS) (nvmlDevice_t, unsigned long long *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_SUPPORTEDCLOCKSTHROTTLEREASONS) (nvmlDevice_t, unsigned long long *);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_SET_COMPUTEMODE) (nvmlDevice_t, nvmlComputeMode_t);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_SET_OPERATIONMODE) (nvmlDevice_t, nvmlGpuOperationMode_t);
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typedef nvmlReturn_t (*NVML_API_CALL NVML_DEVICE_GET_PCIINFO) (nvmlDevice_t, nvmlPciInfo_t *);
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typedef struct hm_nvml_lib
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{
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hc_dynlib_t lib;
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NVML_ERROR_STRING nvmlErrorString;
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NVML_INIT nvmlInit;
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NVML_SHUTDOWN nvmlShutdown;
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NVML_DEVICE_GET_COUNT nvmlDeviceGetCount;
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NVML_DEVICE_GET_NAME nvmlDeviceGetName;
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NVML_DEVICE_GET_HANDLE_BY_INDEX nvmlDeviceGetHandleByIndex;
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NVML_DEVICE_GET_TEMPERATURE nvmlDeviceGetTemperature;
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NVML_DEVICE_GET_FAN_SPEED nvmlDeviceGetFanSpeed;
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NVML_DEVICE_GET_UTILIZATION_RATES nvmlDeviceGetUtilizationRates;
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NVML_DEVICE_GET_CLOCKINFO nvmlDeviceGetClockInfo;
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NVML_DEVICE_GET_THRESHOLD nvmlDeviceGetTemperatureThreshold;
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NVML_DEVICE_GET_CURRPCIELINKGENERATION nvmlDeviceGetCurrPcieLinkGeneration;
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NVML_DEVICE_GET_CURRPCIELINKWIDTH nvmlDeviceGetCurrPcieLinkWidth;
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NVML_DEVICE_GET_CURRENTCLOCKSTHROTTLEREASONS nvmlDeviceGetCurrentClocksThrottleReasons;
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NVML_DEVICE_GET_SUPPORTEDCLOCKSTHROTTLEREASONS nvmlDeviceGetSupportedClocksThrottleReasons;
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NVML_DEVICE_GET_PCIINFO nvmlDeviceGetPciInfo;
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} hm_nvml_lib_t;
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typedef hm_nvml_lib_t NVML_PTR;
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#endif // _NVML_H
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