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nvmlDeviceStructs(3)

Version 1.1
8 Feb 2019
Aliases: nvmlBridgeChipType_t(3), nvmlBridgeChipType_t(3), nvmlGpuTopologyLevel_t(3), nvmlGpuTopologyLevel_t(3), nvmlNvLinkCapability_t(3), nvmlNvLinkCapability_t(3), nvmlNvLinkErrorCounter_t(3), nvmlNvLinkErrorCounter_t(3), nvmlNvLinkUtilizationCountPktTypes_t(3), nvmlNvLinkUtilizationCountPktTypes_t(3), nvmlNvLinkUtilizationCountUnits_t(3), nvmlNvLinkUtilizationCountUnits_t(3), nvmlPcieUtilCounter_t(3), nvmlPcieUtilCounter_t(3), nvmlPerfPolicyType_t(3), nvmlPerfPolicyType_t(3), nvmlSamplingType_t(3), nvmlSamplingType_t(3), nvmlValueType_t(3), nvmlValueType_t(3), NVML_DEC_UTILIZATION_SAMPLES(3), NVML_DEC_UTILIZATION_SAMPLES(3), NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE(3), NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE(3), NVML_DEVICE_PCI_BUS_ID_BUFFER_V2_SIZE(3), NVML_DEVICE_PCI_BUS_ID_BUFFER_V2_SIZE(3), NVML_DEVICE_PCI_BUS_ID_FMT(3), NVML_DEVICE_PCI_BUS_ID_FMT_ARGS(3), NVML_DEVICE_PCI_BUS_ID_LEGACY_FMT(3), NVML_ENC_UTILIZATION_SAMPLES(3), NVML_ENC_UTILIZATION_SAMPLES(3), NVML_GPU_UTILIZATION_SAMPLES(3), NVML_GPU_UTILIZATION_SAMPLES(3), NVML_MAX_PHYSICAL_BRIDGE(3), NVML_MAX_PHYSICAL_BRIDGE(3), NVML_MEMORY_CLK_SAMPLES(3), NVML_MEMORY_CLK_SAMPLES(3), NVML_MEMORY_UTILIZATION_SAMPLES(3), NVML_MEMORY_UTILIZATION_SAMPLES(3), NVML_NVLINK_MAX_LINKS(3), NVML_NVLINK_MAX_LINKS(3), NVML_PERF_POLICY_BOARD_LIMIT(3), NVML_PERF_POLICY_BOARD_LIMIT(3), NVML_PERF_POLICY_LOW_UTILIZATION(3), NVML_PERF_POLICY_LOW_UTILIZATION(3), NVML_PERF_POLICY_POWER(3), NVML_PERF_POLICY_POWER(3), NVML_PERF_POLICY_RELIABILITY(3), NVML_PERF_POLICY_RELIABILITY(3), NVML_PERF_POLICY_SYNC_BOOST(3), NVML_PERF_POLICY_SYNC_BOOST(3), NVML_PERF_POLICY_THERMAL(3), NVML_PERF_POLICY_THERMAL(3), NVML_PERF_POLICY_TOTAL_APP_CLOCKS(3), NVML_PERF_POLICY_TOTAL_APP_CLOCKS(3), NVML_PERF_POLICY_TOTAL_BASE_CLOCKS(3), NVML_PERF_POLICY_TOTAL_BASE_CLOCKS(3), NVML_PROCESSOR_CLK_SAMPLES(3), NVML_PROCESSOR_CLK_SAMPLES(3), NVML_TOTAL_POWER_SAMPLES(3), NVML_TOTAL_POWER_SAMPLES(3), NVML_VALUE_NOT_AVAILABLE(3), NVML_VALUE_NOT_AVAILABLE(3)

nvidia-cuda-dev

NVIDIA CUDA development files

cuda

NVIDIA's GPU programming toolkit

NAME

Device Structs -

Data Structures

struct nvmlPciInfo_t
struct nvmlEccErrorCounts_t
struct nvmlUtilization_t
struct nvmlMemory_t
struct nvmlBAR1Memory_t
struct nvmlProcessInfo_t
struct nvmlNvLinkUtilizationControl_t
struct nvmlBridgeChipInfo_t
struct nvmlBridgeChipHierarchy_t
union nvmlValue_t
struct nvmlSample_t
struct nvmlViolationTime_t

Defines

#define NVML_VALUE_NOT_AVAILABLE (-1)
#define NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE 32
#define NVML_DEVICE_PCI_BUS_ID_BUFFER_V2_SIZE 16
#define NVML_DEVICE_PCI_BUS_ID_LEGACY_FMT ’%04X:%02X:%02X.0’
#define NVML_DEVICE_PCI_BUS_ID_FMT ’%08X:%02X:%02X.0’
#define NVML_DEVICE_PCI_BUS_ID_FMT_ARGS(pciInfo)
#define NVML_NVLINK_MAX_LINKS 6
#define NVML_MAX_PHYSICAL_BRIDGE (128)

Enumerations

enum nvmlBridgeChipType_t
enum nvmlNvLinkUtilizationCountUnits_t
enum nvmlNvLinkUtilizationCountPktTypes_t
enum nvmlNvLinkCapability_t
enum nvmlNvLinkErrorCounter_t
enum nvmlGpuTopologyLevel_t
enum nvmlSamplingType_t { NVML_TOTAL_POWER_SAMPLES = 0, NVML_GPU_UTILIZATION_SAMPLES = 1, NVML_MEMORY_UTILIZATION_SAMPLES = 2, NVML_ENC_UTILIZATION_SAMPLES = 3, NVML_DEC_UTILIZATION_SAMPLES = 4, NVML_PROCESSOR_CLK_SAMPLES = 5, NVML_MEMORY_CLK_SAMPLES = 6 }
enum nvmlPcieUtilCounter_t
enum nvmlValueType_t
enum nvmlPerfPolicyType_t { NVML_PERF_POLICY_POWER = 0, NVML_PERF_POLICY_THERMAL = 1, NVML_PERF_POLICY_SYNC_BOOST = 2, NVML_PERF_POLICY_BOARD_LIMIT = 3, NVML_PERF_POLICY_LOW_UTILIZATION = 4, NVML_PERF_POLICY_RELIABILITY = 5, NVML_PERF_POLICY_TOTAL_APP_CLOCKS = 10, NVML_PERF_POLICY_TOTAL_BASE_CLOCKS = 11 }

Define Documentation

#define NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE 32

Buffer size guaranteed to be large enough for pci bus id

#define NVML_DEVICE_PCI_BUS_ID_BUFFER_V2_SIZE 16

Buffer size guaranteed to be large enough for pci bus id for busIdLegacy

#define NVML_DEVICE_PCI_BUS_ID_FMT ’%08X:%02X:%02X.0’

PCI format string for busId

#define NVML_DEVICE_PCI_BUS_ID_FMT_ARGS(pciInfo)

Value:
(pciInfo)->domain,
                                                    (pciInfo)->bus,
                                                    (pciInfo)->device
Utility macro for filling the pci bus id format from a nvmlPciInfo_t

#define NVML_DEVICE_PCI_BUS_ID_LEGACY_FMT ’%04X:%02X:%02X.0’

PCI format string for busIdLegacy

#define NVML_MAX_PHYSICAL_BRIDGE (128)

Maximum limit on Physical Bridges per Board

#define NVML_NVLINK_MAX_LINKS 6

Maximum number of NvLink links supported

#define NVML_VALUE_NOT_AVAILABLE (-1)

Special constant that some fields take when they are not available. Used when only part of the struct is not available.
Each structure explicitly states when to check for this value.

Enumeration Type Documentation

enum nvmlBridgeChipType_t

Enum to represent type of bridge chip

enum nvmlGpuTopologyLevel_t

Represents level relationships within a system between two GPUs The enums are spaced to allow for future relationships

enum nvmlNvLinkCapability_t

Enum to represent NvLink queryable capabilities

enum nvmlNvLinkErrorCounter_t

Enum to represent NvLink queryable error counters

enum nvmlNvLinkUtilizationCountPktTypes_t

Enum to represent the NvLink utilization counter packet types to count ** this is ONLY applicable with the units as packets or bytes ** as specified in nvmlNvLinkUtilizationCountUnits_t ** all packet filter descriptions are target GPU centric ** these can be ’OR’d’ together

enum nvmlNvLinkUtilizationCountUnits_t

Enum to represent the NvLink utilization counter packet units

enum nvmlPcieUtilCounter_t

Represents the queryable PCIe utilization counters

enum nvmlPerfPolicyType_t

Represents type of perf policy for which violation times can be queried
Enumerator:
NVML_PERF_POLICY_POWER
How long did power violations cause the GPU to be below application clocks.
NVML_PERF_POLICY_THERMAL
How long did thermal violations cause the GPU to be below application clocks.
NVML_PERF_POLICY_SYNC_BOOST
How long did sync boost cause the GPU to be below application clocks.
NVML_PERF_POLICY_BOARD_LIMIT
How long did the board limit cause the GPU to be below application clocks.
NVML_PERF_POLICY_LOW_UTILIZATION
How long did low utilization cause the GPU to be below application clocks.
NVML_PERF_POLICY_RELIABILITY
How long did the board reliability limit cause the GPU to be below application clocks.
NVML_PERF_POLICY_TOTAL_APP_CLOCKS
Total time the GPU was held below application clocks by any limiter (0 - 5 above).
NVML_PERF_POLICY_TOTAL_BASE_CLOCKS
Total time the GPU was held below base clocks.

enum nvmlSamplingType_t

Represents Type of Sampling Event
Enumerator:
NVML_TOTAL_POWER_SAMPLES
To represent total power drawn by GPU.
NVML_GPU_UTILIZATION_SAMPLES
To represent percent of time during which one or more kernels was executing on the GPU.
NVML_MEMORY_UTILIZATION_SAMPLES
To represent percent of time during which global (device) memory was being read or written.
NVML_ENC_UTILIZATION_SAMPLES
To represent percent of time during which NVENC remains busy.
NVML_DEC_UTILIZATION_SAMPLES
To represent percent of time during which NVDEC remains busy.
NVML_PROCESSOR_CLK_SAMPLES
To represent processor clock samples.
NVML_MEMORY_CLK_SAMPLES
To represent memory clock samples.

enum nvmlValueType_t

Represents the type for sample value returned

Author

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