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bindings.go
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bindings.go
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package nvml
import (
"C"
"os"
"syscall"
"unsafe"
"github.com/pkg/errors"
)
var ErrNotImplemented = errors.New("Not implemented")
type API struct {
dll *syscall.DLL
// Initialization and cleanup
nvmlInit,
nvmlShutdown,
// Error reporting
nvmlErrorString,
// System Queries
nvmlSystemGetCudaDriverVersion,
nvmlSystemGetDriverVersion,
nvmlSystemGetNVMLVersion,
nvmlSystemGetProcessName,
// Device Queries
nvmlDeviceClearCpuAffinity,
nvmlDeviceGetAPIRestriction,
nvmlDeviceGetApplicationsClock,
nvmlDeviceGetAutoBoostedClocksEnabled,
nvmlDeviceGetBAR1MemoryInfo,
nvmlDeviceGetBoardId,
nvmlDeviceGetBoardPartNumber,
nvmlDeviceGetBrand,
nvmlDeviceGetBridgeChipInfo,
nvmlDeviceGetClock,
nvmlDeviceGetClockInfo,
nvmlDeviceGetComputeMode,
nvmlDeviceGetComputeRunningProcesses,
nvmlDeviceGetCount,
nvmlDeviceGetCpuAffinity,
nvmlDeviceGetCudaComputeCapability,
nvmlDeviceGetCurrPcieLinkGeneration,
nvmlDeviceGetCurrPcieLinkWidth,
nvmlDeviceGetCurrentClocksThrottleReasons,
nvmlDeviceGetDecoderUtilization,
nvmlDeviceGetDefaultApplicationsClock,
nvmlDeviceGetDetailedEccErrors,
nvmlDeviceGetDisplayActive,
nvmlDeviceGetDisplayMode,
nvmlDeviceGetDriverModel,
nvmlDeviceGetEccMode,
nvmlDeviceGetEncoderCapacity,
nvmlDeviceGetEncoderSessions,
nvmlDeviceGetEncoderStats,
nvmlDeviceGetEncoderUtilization,
nvmlDeviceGetEnforcedPowerLimit,
nvmlDeviceGetFanSpeed,
nvmlDeviceGetGpuOperationMode,
nvmlDeviceGetGraphicsRunningProcesses,
nvmlDeviceGetHandleByIndex,
nvmlDeviceGetHandleByPciBusId,
nvmlDeviceGetHandleBySerial,
nvmlDeviceGetHandleByUUID,
nvmlDeviceGetIndex,
nvmlDeviceGetInforomConfigurationChecksum,
nvmlDeviceGetInforomImageVersion,
nvmlDeviceGetInforomVersion,
nvmlDeviceGetMaxClockInfo,
nvmlDeviceGetMaxCustomerBoostClock,
nvmlDeviceGetMaxPcieLinkGeneration,
nvmlDeviceGetMaxPcieLinkWidth,
nvmlDeviceGetMemoryErrorCounter,
nvmlDeviceGetMemoryInfo,
nvmlDeviceGetMinorNumber,
nvmlDeviceGetMultiGpuBoard,
nvmlDeviceGetName,
nvmlDeviceGetP2PStatus,
nvmlDeviceGetPciInfo,
nvmlDeviceGetPcieReplayCounter,
nvmlDeviceGetPcieThroughput,
nvmlDeviceGetPerformanceState,
nvmlDeviceGetPersistenceMode,
nvmlDeviceGetPowerManagementDefaultLimit,
nvmlDeviceGetPowerManagementLimit,
nvmlDeviceGetPowerManagementLimitConstraints,
nvmlDeviceGetPowerManagementMode,
nvmlDeviceGetPowerState,
nvmlDeviceGetPowerUsage,
nvmlDeviceGetRetiredPages,
nvmlDeviceGetRetiredPagesPendingStatus,
nvmlDeviceGetSamples,
nvmlDeviceGetSerial,
nvmlDeviceGetSupportedClocksThrottleReasons,
nvmlDeviceGetSupportedGraphicsClocks,
nvmlDeviceGetSupportedMemoryClocks,
nvmlDeviceGetTemperature,
nvmlDeviceGetTemperatureThreshold,
nvmlDeviceGetTopologyCommonAncestor,
nvmlDeviceGetTopologyNearestGpus,
nvmlDeviceGetTotalEccErrors,
nvmlDeviceGetTotalEnergyConsumption,
nvmlDeviceGetUUID,
nvmlDeviceGetUtilizationRates,
nvmlDeviceGetVbiosVersion,
nvmlDeviceGetViolationStatus,
nvmlDeviceOnSameBoard,
nvmlDeviceResetApplicationsClocks,
nvmlDeviceSetAutoBoostedClocksEnabled,
nvmlDeviceSetCpuAffinity,
nvmlDeviceSetDefaultAutoBoostedClocksEnabled,
nvmlDeviceValidateInforom,
nvmlSystemGetTopologyGpuSet,
// Device commands
nvmlDeviceClearEccErrorCounts,
nvmlDeviceSetAPIRestriction,
nvmlDeviceSetApplicationsClocks,
nvmlDeviceSetComputeMode,
nvmlDeviceSetDriverModel,
nvmlDeviceSetEccMode,
nvmlDeviceSetGpuOperationMode,
nvmlDeviceSetPersistenceMode,
nvmlDeviceSetPowerManagementLimit *syscall.Proc
}
func (a API) call(p *syscall.Proc, args ...uintptr) error {
ret, _, _ := p.Call(args...)
if ret != 0 {
return returnValueToError(int(ret))
}
return nil
}
// Init initializes NVML, but don't initialize any GPUs yet.
func (a API) Init() error {
return a.call(a.nvmlInit)
}
// Shutdown shut downs NVML by releasing all GPU resources previously allocated with Init() and
// unloads nvml.dll via UnloadLibrary call.
func (a API) Shutdown() error {
err := a.call(a.nvmlShutdown)
a.ReleaseDLL()
return err
}
func (a API) ReleaseDLL() error {
return a.dll.Release()
}
// ErrorString returns a string representation of the error.
func (a API) ErrorString(result uintptr) string {
ret, _, _ := a.nvmlErrorString.Call(uintptr(result))
buf := (*C.char)(unsafe.Pointer(ret))
return C.GoString(buf)
}
// New creates nvml.dll wrapper
func New(path string) (*API, error) {
if path == "" {
path = os.ExpandEnv("$ProgramW6432\\NVIDIA Corporation\\NVSMI\\nvml.dll")
}
dll, err := syscall.LoadDLL(path)
if err != nil {
return nil, err
}
bindings := &API{
dll: dll,
nvmlInit: dll.MustFindProc("nvmlInit"),
nvmlShutdown: dll.MustFindProc("nvmlShutdown"),
nvmlErrorString: dll.MustFindProc("nvmlErrorString"),
nvmlSystemGetCudaDriverVersion: dll.MustFindProc("nvmlSystemGetCudaDriverVersion"),
nvmlSystemGetDriverVersion: dll.MustFindProc("nvmlSystemGetDriverVersion"),
nvmlSystemGetNVMLVersion: dll.MustFindProc("nvmlSystemGetNVMLVersion"),
nvmlSystemGetProcessName: dll.MustFindProc("nvmlSystemGetProcessName"),
nvmlDeviceClearCpuAffinity: dll.MustFindProc("nvmlDeviceClearCpuAffinity"),
nvmlDeviceGetAPIRestriction: dll.MustFindProc("nvmlDeviceGetAPIRestriction"),
nvmlDeviceGetApplicationsClock: dll.MustFindProc("nvmlDeviceGetApplicationsClock"),
nvmlDeviceGetAutoBoostedClocksEnabled: dll.MustFindProc("nvmlDeviceGetAutoBoostedClocksEnabled"),
nvmlDeviceGetBAR1MemoryInfo: dll.MustFindProc("nvmlDeviceGetBAR1MemoryInfo"),
nvmlDeviceGetBoardId: dll.MustFindProc("nvmlDeviceGetBoardId"),
nvmlDeviceGetBoardPartNumber: dll.MustFindProc("nvmlDeviceGetBoardPartNumber"),
nvmlDeviceGetBrand: dll.MustFindProc("nvmlDeviceGetBrand"),
nvmlDeviceGetBridgeChipInfo: dll.MustFindProc("nvmlDeviceGetBridgeChipInfo"),
nvmlDeviceGetClock: dll.MustFindProc("nvmlDeviceGetClock"),
nvmlDeviceGetClockInfo: dll.MustFindProc("nvmlDeviceGetClockInfo"),
nvmlDeviceGetComputeMode: dll.MustFindProc("nvmlDeviceGetComputeMode"),
nvmlDeviceGetComputeRunningProcesses: dll.MustFindProc("nvmlDeviceGetComputeRunningProcesses"),
nvmlDeviceGetCount: dll.MustFindProc("nvmlDeviceGetCount"),
nvmlDeviceGetCpuAffinity: dll.MustFindProc("nvmlDeviceGetCpuAffinity"),
nvmlDeviceGetCudaComputeCapability: dll.MustFindProc("nvmlDeviceGetCudaComputeCapability"),
nvmlDeviceGetCurrPcieLinkGeneration: dll.MustFindProc("nvmlDeviceGetCurrPcieLinkGeneration"),
nvmlDeviceGetCurrPcieLinkWidth: dll.MustFindProc("nvmlDeviceGetCurrPcieLinkWidth"),
nvmlDeviceGetCurrentClocksThrottleReasons: dll.MustFindProc("nvmlDeviceGetCurrentClocksThrottleReasons"),
nvmlDeviceGetDecoderUtilization: dll.MustFindProc("nvmlDeviceGetDecoderUtilization"),
nvmlDeviceGetDefaultApplicationsClock: dll.MustFindProc("nvmlDeviceGetDefaultApplicationsClock"),
nvmlDeviceGetDetailedEccErrors: dll.MustFindProc("nvmlDeviceGetDetailedEccErrors"),
nvmlDeviceGetDisplayActive: dll.MustFindProc("nvmlDeviceGetDisplayActive"),
nvmlDeviceGetDisplayMode: dll.MustFindProc("nvmlDeviceGetDisplayMode"),
nvmlDeviceGetDriverModel: dll.MustFindProc("nvmlDeviceGetDriverModel"),
nvmlDeviceGetEccMode: dll.MustFindProc("nvmlDeviceGetEccMode"),
nvmlDeviceGetEncoderCapacity: dll.MustFindProc("nvmlDeviceGetEncoderCapacity"),
nvmlDeviceGetEncoderSessions: dll.MustFindProc("nvmlDeviceGetEncoderSessions"),
nvmlDeviceGetEncoderStats: dll.MustFindProc("nvmlDeviceGetEncoderStats"),
nvmlDeviceGetEncoderUtilization: dll.MustFindProc("nvmlDeviceGetEncoderUtilization"),
nvmlDeviceGetEnforcedPowerLimit: dll.MustFindProc("nvmlDeviceGetEnforcedPowerLimit"),
nvmlDeviceGetFanSpeed: dll.MustFindProc("nvmlDeviceGetFanSpeed"),
nvmlDeviceGetGpuOperationMode: dll.MustFindProc("nvmlDeviceGetGpuOperationMode"),
nvmlDeviceGetGraphicsRunningProcesses: dll.MustFindProc("nvmlDeviceGetGraphicsRunningProcesses"),
nvmlDeviceGetHandleByIndex: dll.MustFindProc("nvmlDeviceGetHandleByIndex"),
nvmlDeviceGetHandleByPciBusId: dll.MustFindProc("nvmlDeviceGetHandleByPciBusId"),
nvmlDeviceGetHandleBySerial: dll.MustFindProc("nvmlDeviceGetHandleBySerial"),
nvmlDeviceGetHandleByUUID: dll.MustFindProc("nvmlDeviceGetHandleByUUID"),
nvmlDeviceGetIndex: dll.MustFindProc("nvmlDeviceGetIndex"),
nvmlDeviceGetInforomConfigurationChecksum: dll.MustFindProc("nvmlDeviceGetInforomConfigurationChecksum"),
nvmlDeviceGetInforomImageVersion: dll.MustFindProc("nvmlDeviceGetInforomImageVersion"),
nvmlDeviceGetInforomVersion: dll.MustFindProc("nvmlDeviceGetInforomVersion"),
nvmlDeviceGetMaxClockInfo: dll.MustFindProc("nvmlDeviceGetMaxClockInfo"),
nvmlDeviceGetMaxCustomerBoostClock: dll.MustFindProc("nvmlDeviceGetMaxCustomerBoostClock"),
nvmlDeviceGetMaxPcieLinkGeneration: dll.MustFindProc("nvmlDeviceGetMaxPcieLinkGeneration"),
nvmlDeviceGetMaxPcieLinkWidth: dll.MustFindProc("nvmlDeviceGetMaxPcieLinkWidth"),
nvmlDeviceGetMemoryErrorCounter: dll.MustFindProc("nvmlDeviceGetMemoryErrorCounter"),
nvmlDeviceGetMemoryInfo: dll.MustFindProc("nvmlDeviceGetMemoryInfo"),
nvmlDeviceGetMinorNumber: dll.MustFindProc("nvmlDeviceGetMinorNumber"),
nvmlDeviceGetMultiGpuBoard: dll.MustFindProc("nvmlDeviceGetMultiGpuBoard"),
nvmlDeviceGetName: dll.MustFindProc("nvmlDeviceGetName"),
nvmlDeviceGetP2PStatus: dll.MustFindProc("nvmlDeviceGetP2PStatus"),
nvmlDeviceGetPciInfo: dll.MustFindProc("nvmlDeviceGetPciInfo"),
nvmlDeviceGetPcieReplayCounter: dll.MustFindProc("nvmlDeviceGetPcieReplayCounter"),
nvmlDeviceGetPcieThroughput: dll.MustFindProc("nvmlDeviceGetPcieThroughput"),
nvmlDeviceGetPerformanceState: dll.MustFindProc("nvmlDeviceGetPerformanceState"),
nvmlDeviceGetPersistenceMode: dll.MustFindProc("nvmlDeviceGetPersistenceMode"),
nvmlDeviceGetPowerManagementDefaultLimit: dll.MustFindProc("nvmlDeviceGetPowerManagementDefaultLimit"),
nvmlDeviceGetPowerManagementLimit: dll.MustFindProc("nvmlDeviceGetPowerManagementLimit"),
nvmlDeviceGetPowerManagementLimitConstraints: dll.MustFindProc("nvmlDeviceGetPowerManagementLimitConstraints"),
nvmlDeviceGetPowerManagementMode: dll.MustFindProc("nvmlDeviceGetPowerManagementMode"),
nvmlDeviceGetPowerState: dll.MustFindProc("nvmlDeviceGetPowerState"),
nvmlDeviceGetPowerUsage: dll.MustFindProc("nvmlDeviceGetPowerUsage"),
nvmlDeviceGetRetiredPages: dll.MustFindProc("nvmlDeviceGetRetiredPages"),
nvmlDeviceGetRetiredPagesPendingStatus: dll.MustFindProc("nvmlDeviceGetRetiredPagesPendingStatus"),
nvmlDeviceGetSamples: dll.MustFindProc("nvmlDeviceGetSamples"),
nvmlDeviceGetSerial: dll.MustFindProc("nvmlDeviceGetSerial"),
nvmlDeviceGetSupportedClocksThrottleReasons: dll.MustFindProc("nvmlDeviceGetSupportedClocksThrottleReasons"),
nvmlDeviceGetSupportedGraphicsClocks: dll.MustFindProc("nvmlDeviceGetSupportedGraphicsClocks"),
nvmlDeviceGetSupportedMemoryClocks: dll.MustFindProc("nvmlDeviceGetSupportedMemoryClocks"),
nvmlDeviceGetTemperature: dll.MustFindProc("nvmlDeviceGetTemperature"),
nvmlDeviceGetTemperatureThreshold: dll.MustFindProc("nvmlDeviceGetTemperatureThreshold"),
nvmlDeviceGetTopologyCommonAncestor: dll.MustFindProc("nvmlDeviceGetTopologyCommonAncestor"),
nvmlDeviceGetTopologyNearestGpus: dll.MustFindProc("nvmlDeviceGetTopologyNearestGpus"),
nvmlDeviceGetTotalEccErrors: dll.MustFindProc("nvmlDeviceGetTotalEccErrors"),
nvmlDeviceGetTotalEnergyConsumption: dll.MustFindProc("nvmlDeviceGetTotalEnergyConsumption"),
nvmlDeviceGetUUID: dll.MustFindProc("nvmlDeviceGetUUID"),
nvmlDeviceGetUtilizationRates: dll.MustFindProc("nvmlDeviceGetUtilizationRates"),
nvmlDeviceGetVbiosVersion: dll.MustFindProc("nvmlDeviceGetVbiosVersion"),
nvmlDeviceGetViolationStatus: dll.MustFindProc("nvmlDeviceGetViolationStatus"),
nvmlDeviceOnSameBoard: dll.MustFindProc("nvmlDeviceOnSameBoard"),
nvmlDeviceResetApplicationsClocks: dll.MustFindProc("nvmlDeviceResetApplicationsClocks"),
nvmlDeviceSetAutoBoostedClocksEnabled: dll.MustFindProc("nvmlDeviceSetAutoBoostedClocksEnabled"),
nvmlDeviceSetCpuAffinity: dll.MustFindProc("nvmlDeviceSetCpuAffinity"),
nvmlDeviceSetDefaultAutoBoostedClocksEnabled: dll.MustFindProc("nvmlDeviceSetDefaultAutoBoostedClocksEnabled"),
nvmlDeviceValidateInforom: dll.MustFindProc("nvmlDeviceValidateInforom"),
nvmlSystemGetTopologyGpuSet: dll.MustFindProc("nvmlSystemGetTopologyGpuSet"),
nvmlDeviceClearEccErrorCounts: dll.MustFindProc("nvmlDeviceClearEccErrorCounts"),
nvmlDeviceSetAPIRestriction: dll.MustFindProc("nvmlDeviceSetAPIRestriction"),
nvmlDeviceSetApplicationsClocks: dll.MustFindProc("nvmlDeviceSetApplicationsClocks"),
nvmlDeviceSetComputeMode: dll.MustFindProc("nvmlDeviceSetComputeMode"),
nvmlDeviceSetDriverModel: dll.MustFindProc("nvmlDeviceSetDriverModel"),
nvmlDeviceSetEccMode: dll.MustFindProc("nvmlDeviceSetEccMode"),
nvmlDeviceSetGpuOperationMode: dll.MustFindProc("nvmlDeviceSetGpuOperationMode"),
nvmlDeviceSetPersistenceMode: dll.MustFindProc("nvmlDeviceSetPersistenceMode"),
nvmlDeviceSetPowerManagementLimit: dll.MustFindProc("nvmlDeviceSetPowerManagementLimit"),
}
return bindings, nil
}