Functions

nvmlReturn_t nvmlGpmMetricsGet ( nvmlGpmMetricsGet_t* metricsGet )

Parameters

metricsGet

IN/OUT: populated nvmlGpmMetricsGet_t struct

Returns

• NVML_SUCCESS on success
• Nonzero NVML_ERROR_? enum on error

Description

Calculate GPM metrics from two samples.

HOPPER_OR_NEWER%

nvmlReturn_t nvmlGpmQueryDeviceSupport ( nvmlDevice_t device, nvmlGpmSupport_t* gpmSupport )

Parameters

device

NVML device to query for

gpmSupport

Structure to indicate GPM support. Indicates GPM support per system for the supplied device

Returns

• NVML_SUCCESS on success
• Nonzero NVML_ERROR_? enum if there is an error in processing the query

Description

Indicate whether the supplied device supports GPM

nvmlReturn_t nvmlGpmSampleAlloc ( nvmlGpmSample_t* gpmSample )

Parameters

gpmSample

Where the allocated sample will be stored

Returns

• NVML_SUCCESS on success
• NVML_ERROR_INVALID_ARGUMENT if an invalid pointer is provided
• NVML_ERROR_MEMORY if system memory is insufficient

Description

Allocate a sample buffer to be used with NVML GPM . You will need to allocate at least two of these buffers to use with the NVML GPM feature

HOPPER_OR_NEWER%

nvmlReturn_t nvmlGpmSampleFree ( nvmlGpmSample_t gpmSample )

Parameters

gpmSample

Sample to free

Returns

• NVML_SUCCESS on success
• NVML_ERROR_INVALID_ARGUMENT if an invalid pointer is provided

Description

Free an allocated sample buffer that was allocated with nvmlGpmSampleAlloc()

HOPPER_OR_NEWER%

nvmlReturn_t nvmlGpmSampleGet ( nvmlDevice_t device, nvmlGpmSample_t gpmSample )

Parameters

device

Device to get samples for

gpmSample

Buffer to read samples into

Returns

• NVML_SUCCESS on success
• Nonzero NVML_ERROR_? enum on error

Description

Read a sample of GPM metrics into the provided gpmSample buffer. After two samples are gathered, you can call nvmlGpmMetricGet on those samples to retrive metrics

HOPPER_OR_NEWER%