Module nvapi_sys::gpu [] [src]

The GPU APIs retrieve and control various attributes of the GPU, such as outputs, VBIOS revision, APG rate, frame buffer size, and thermal settings.

Modules

clock

The GPU clock control APIs are used to get and set individual clock domains on a per-GPU basis.

cooler

The GPU cooler APIs are used to get and set the fan level or equivalent cooler levels for various target devices associated with the GPU.

display
power
private

Undocumented API

pstate

The GPU performance state APIs are used to get and set various performance levels on a per-GPU basis. P-States are GPU active/executing performance capability and power consumption states.

thermal

The GPU thermal control APIs are used to get temperature levels from the various thermal sensors associated with the GPU.

Structs

PerformanceDecreaseReason

Bit masks for knowing the exact reason for performance decrease

Enums

SystemType

Used in NvAPI_GPU_GetSystemType()

Constants

NV_GPU_PERF_DECREASE_NONE
NV_GPU_PERF_DECREASE_REASON_AC_BATT
NV_GPU_PERF_DECREASE_REASON_API_TRIGGERED
NV_GPU_PERF_DECREASE_REASON_INSUFFICIENT_POWER
NV_GPU_PERF_DECREASE_REASON_POWER_CONTROL
NV_GPU_PERF_DECREASE_REASON_THERMAL_PROTECTION
NV_GPU_PERF_DECREASE_REASON_UNKNOWN
NV_SYSTEM_TYPE_DESKTOP
NV_SYSTEM_TYPE_LAPTOP
NV_SYSTEM_TYPE_UNKNOWN

Functions

NvAPI_EnumPhysicalGPUs

This function returns an array of physical GPU handles. Each handle represents a physical GPU present in the system. That GPU may be part of an SLI configuration, or may not be visible to the OS directly.

NvAPI_GPU_GetFullName

This function retrieves the full GPU name as an ASCII string - for example, "Quadro FX 1400".

NvAPI_GPU_GetGpuCoreCount

Retrieves the total number of cores defined for a GPU. Returns 0 on architectures that don't define GPU cores.

NvAPI_GPU_GetPCIIdentifiers

This function returns the PCI identifiers associated with this GPU.

NvAPI_GPU_GetPerfDecreaseInfo

This function retrieves reasons for the current performance decrease.

NvAPI_GPU_GetPhysicalFrameBufferSize

This function returns the physical size of framebuffer in KB. This does NOT include any system RAM that may be dedicated for use by the GPU.

NvAPI_GPU_GetShaderSubPipeCount

This function retrieves the number of Shader SubPipes on the GPU On newer architectures, this corresponds to the number of SM units

NvAPI_GPU_GetSystemType

This function identifies whether the GPU is a notebook GPU or a desktop GPU.

NvAPI_GPU_GetVbiosVersionString

This function returns the full video BIOS version string in the form of xx.xx.xx.xx.yy where - xx numbers come from NvAPI_GPU_GetVbiosRevision() and - yy comes from NvAPI_GPU_GetVbiosOEMRevision().

Type Definitions

EnumPhysicalGPUsFn
GPU_GetFullNameFn
GPU_GetGpuCoreCountFn
GPU_GetPCIIdentifiersFn
GPU_GetPhysicalFrameBufferSizeFn
GPU_GetShaderSubPipeCountFn
GPU_GetSystemTypeFn
GPU_GetVbiosVersionStringFn
NVAPI_GPU_PERF_DECREASE

Bit masks for knowing the exact reason for performance decrease

NV_SYSTEM_TYPE

Used in NvAPI_GPU_GetSystemType()