86 lines
2.7 KiB
Go
86 lines
2.7 KiB
Go
package nvml
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import (
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"github.com/NVIDIA/gpu-monitoring-tools/bindings/go/nvml"
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)
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// Initialize nvml library by locating nvml shared object file and calling ldopen
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func (n *nvmlDriver) Initialize() error {
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return nvml.Init()
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}
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// Shutdown stops any further interaction with nvml
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func (n *nvmlDriver) Shutdown() error {
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return nvml.Shutdown()
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}
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// SystemDriverVersion returns installed driver version
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func (n *nvmlDriver) SystemDriverVersion() (string, error) {
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return nvml.GetDriverVersion()
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}
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// DeviceCount reports number of available GPU devices
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func (n *nvmlDriver) DeviceCount() (uint, error) {
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return nvml.GetDeviceCount()
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}
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// DeviceInfoByIndex returns DeviceInfo for index GPU in system device list
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func (n *nvmlDriver) DeviceInfoByIndex(index uint) (*DeviceInfo, error) {
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device, err := nvml.NewDevice(index)
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if err != nil {
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return nil, err
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}
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deviceMode, err := device.GetDeviceMode()
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if err != nil {
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return nil, err
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}
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return &DeviceInfo{
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UUID: device.UUID,
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Name: device.Model,
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MemoryMiB: device.Memory,
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PowerW: device.Power,
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BAR1MiB: device.PCI.BAR1,
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PCIBandwidthMBPerS: device.PCI.Bandwidth,
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PCIBusID: device.PCI.BusID,
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CoresClockMHz: device.Clocks.Cores,
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MemoryClockMHz: device.Clocks.Memory,
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DisplayState: deviceMode.DisplayInfo.Mode.String(),
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PersistenceMode: deviceMode.Persistence.String(),
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}, nil
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}
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// DeviceInfoByIndex returns DeviceInfo and DeviceStatus for index GPU in system device list
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func (n *nvmlDriver) DeviceInfoAndStatusByIndex(index uint) (*DeviceInfo, *DeviceStatus, error) {
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device, err := nvml.NewDevice(index)
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if err != nil {
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return nil, nil, err
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}
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status, err := device.Status()
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if err != nil {
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return nil, nil, err
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}
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return &DeviceInfo{
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UUID: device.UUID,
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Name: device.Model,
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MemoryMiB: device.Memory,
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PowerW: device.Power,
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BAR1MiB: device.PCI.BAR1,
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PCIBandwidthMBPerS: device.PCI.Bandwidth,
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PCIBusID: device.PCI.BusID,
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CoresClockMHz: device.Clocks.Cores,
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MemoryClockMHz: device.Clocks.Memory,
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}, &DeviceStatus{
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TemperatureC: status.Temperature,
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GPUUtilization: status.Utilization.GPU,
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MemoryUtilization: status.Utilization.Memory,
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EncoderUtilization: status.Utilization.Encoder,
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DecoderUtilization: status.Utilization.Decoder,
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UsedMemoryMiB: status.Memory.Global.Used,
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ECCErrorsL1Cache: status.Memory.ECCErrors.L1Cache,
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ECCErrorsL2Cache: status.Memory.ECCErrors.L2Cache,
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ECCErrorsDevice: status.Memory.ECCErrors.Device,
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PowerUsageW: status.Power,
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BAR1UsedMiB: status.PCI.BAR1Used,
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}, nil
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}
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