CUPTI User's Guide

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metricArray Returns the IDs of the metricsReturn values:CUPTI_SUCCESSCUPTI_ERROR_INVALID_PARAMETER if arraySizeBytes or metricArray areNULLCUptiResult cuptiGetNumMetrics (uint32_t ∗ numMetrics)Returns the total number of metrics available on any CUDA-capable devices.Parameters:numMetrics Returns the number of metricsReturn values:CUPTI_SUCCESSCUPTI_ERROR_INVALID_PARAMETER if numMetrics is NULLCUptiResult cuptiMetricCreateEventGroupSets (CUcontext context,size_t metricIdArraySizeBytes, CUpti_MetricID ∗ metricIdArray,CUpti_EventGroupSets ∗∗ eventGroupPasses)For a set of metrics, get the grouping that indicates the number of passes and the eventgroups necessary to collect the events required for those metrics.See also:cuptiEventGroupSetsCreate for details on event group set creation.Parameters:context The context for event collectionmetricIdArraySizeBytes Size of the metricIdArray in bytesmetricIdArray Array of metric IDseventGroupPasses Returns a CUpti_EventGroupSets object that indicates thenumber of passes required to collect the events and the events to collect on eachpassReturn values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_INVALID_CONTEXTCUPTI_ERROR_INVALID_METRIC_IDCUDA Tools SDK CUPTI User’s Guide DA-05679-001_v01 | 104
CUPTI_ERROR_INVALID_PARAMETER if metricIdArray oreventGroupPasses is NULLCUptiResult cuptiMetricEnumEvents (CUpti_MetricID metric,size_t ∗ eventIdArraySizeBytes, CUpti_EventID ∗ eventIdArray)Gets the event IDs in eventIdArray required to calculate a metric. The size of theeventIdArray buffer is given by ∗eventIdArraySizeBytes and must be at leastnumEvents ∗ sizeof(CUpti_EventID) or all events will not be returned. The value returnedin ∗eventIdArraySizeBytes contains the number of bytes returned in eventIdArray.Parameters:metric ID of the metriceventIdArraySizeBytes The size of eventIdArray in bytes, and returns the number ofbytes written to eventIdArrayeventIdArray Returns the IDs of the events required to calculate metricReturn values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_INVALID_METRIC_IDCUPTI_ERROR_INVALID_PARAMETER if eventIdArraySizeBytes oreventIdArray are NULL.CUptiResult cuptiMetricGetAttribute (CUpti_MetricID metric,CUpti_MetricAttribute attrib, size_t ∗ valueSize, void ∗ value)Returns a metric attribute in ∗value. The size of the value buffer is given by ∗valueSize.The value returned in ∗valueSize contains the number of bytes returned in value.If the attribute value is a c-string that is longer than ∗valueSize, then only the first∗valueSize characters will be returned and there will be no terminating null byte.Parameters:metric ID of the metricattrib The metric attribute to readvalueSize The size of the value buffer in bytes, and returns the number of byteswritten to valuevalue Returns the attribute’s valueReturn values:CUPTI_SUCCESSCUDA Tools SDK CUPTI User’s Guide DA-05679-001_v01 | 105
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CUDA Tools SDKCUPTI User’s GuideD
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CUPTIThe CUDA Profiling Tools Inter
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CUPTI_CBID_RESOURCE_CONTEXT_CREATED
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twice each time any of the CUDA run
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device-specific limits. At any give
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Sampling EventsThe event API can al
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CapabilityEvent Name Description Ty
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CUPTI ReferenceCUPTI VersionDefines
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CUPTI Result CodesEnumerations◮ e
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CUPTI_ERROR_INVALID_METRIC_IDCUPTI_
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CUPTI_ACTIVITY_COMPUTE_API_OPENCL =
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size_t ∗validBufferSizeBytes)Quer
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CUPTI_ACTIVITY_MEMCPY_KIND_HTOAcopy
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CUptiResult cuptiActivityEnqueueBuf
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CUptiResult cuptiActivityGetNumDrop
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CUpti_Activity Type ReferenceThe ba
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CUpti_ActivityKind CUpti_ActivityAP
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Detailed DescriptionThis activity r
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uint32_t CUpti_ActivityDevice::maxI
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uint64_t CUpti_ActivityEvent::value
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Field Documentationint32_t CUpti_Ac
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Page 58 and 59: CUpti_ActivityMemset Type Reference
Page 60 and 61: CUpti_ActivityMetric Type Reference
Page 62 and 63: CUPTI Callback APIData Structures
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Page 86 and 87: valueSize The size of the value buf
Page 88 and 89: Return values:CUPTI_SUCCESSCUPTI_ER
Page 90 and 91: Parameters:device The CUDA deviceev
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Page 94 and 95: flags Flags controlling the reading
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Page 100 and 101: CUPTI_METRIC_VALUE_KIND_PERCENT = 2
Page 102 and 103: enum CUpti_MetricCategoryEach metri
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CUPTI User's Guide

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