CUPTI User's Guide

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flags Flags controlling the reading modeeventValueBufferSizeBytes The size of eventValueBuffer in bytes, and returns thenumber of bytes written to eventValueBuffereventValueBuffer Returns the event valueseventIdArraySizeBytes The size of eventIdArray in bytes, and returns the number ofbytes written to eventIdArrayeventIdArray Returns the IDs of the events in the same order as the values return ineventValueBuffer.numEventIdsRead Returns the number of event IDs returned inReturn values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_HARDWARECUPTI_ERROR_INVALID_OPERATION if eventGroup is disabledCUPTI_ERROR_INVALID_PARAMETER if eventGroup,eventValueBufferSizeBytes, eventValueBuffer, eventIdArraySizeBytes,eventIdArray or numEventIdsRead is NULLCUptiResult cuptiEventGroupReadEvent (CUpti_EventGroupeventGroup, CUpti_ReadEventFlags flags, CUpti_EventIDevent, size_t ∗ eventValueBufferSizeBytes, uint64_t ∗eventValueBuffer)Read the value for an event in an event group. The event value is returned in theeventValueBuffer buffer. eventValueBufferSizeBytes indicates the size of theeventValueBuffer buffer. The buffer must be at least sizeof(uint64) ifCUPTI_EVENT_GROUP_ATTR_PROFILE_ALL_DOMAIN_INSTANCES is not seton the group containing the event. The buffer must be at least (sizeof(uint64) ∗ number ofdomain instances) ifCUPTI_EVENT_GROUP_ATTR_PROFILE_ALL_DOMAIN_INSTANCES is set onthe group.If any instance of an event counter overflows, the value returned for that event instancewill be CUPTI_EVENT_OVERFLOW.The only allowed value for flags is CUPTI_EVENT_READ_FLAG_NONE.Reading an event from a disabled event group is not allowed.Parameters:eventGroup The event groupCUDA Tools SDK CUPTI User’s Guide DA-05679-001_v01 | 94
flags Flags controlling the reading modeevent The event to readeventValueBbufferSizeBytes The size of eventValueBuffer in bytes, and returns thenumber of bytes written to eventValueBuffereventValueBuffer Returns the event value(s)Return values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_INVALID_EVENT_IDCUPTI_ERROR_HARDWARECUPTI_ERROR_INVALID_OPERATION if eventGroup is disabledCUPTI_ERROR_INVALID_PARAMETER if eventGroup,eventValueBufferSizeBytes or eventValueBuffer is NULLCUptiResult cuptiEventGroupRemoveAllEvents(CUpti_EventGroup eventGroup)Remove all events from an event group. Events cannot be removed if the event group isenabled.Parameters:eventGroup The event groupReturn values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_INVALID_OPERATION if eventGroup is enabledCUPTI_ERROR_INVALID_PARAMETER if eventGroup is NULLCUptiResult cuptiEventGroupRemoveEvent (CUpti_EventGroupeventGroup, CUpti_EventID event)Remove event from the an event group. The event cannot be removed if the event groupis enabled.Parameters:eventGroup The event groupevent The event to remove from the groupCUDA Tools SDK CUPTI User’s Guide DA-05679-001_v01 | 95
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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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Page 46 and 47: Detailed DescriptionThis activity r
Page 48 and 49: uint32_t CUpti_ActivityDevice::maxI
Page 50 and 51: uint64_t CUpti_ActivityEvent::value
Page 52 and 53: Field Documentationint32_t CUpti_Ac
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Page 58 and 59: CUpti_ActivityMemset Type Reference
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Page 62 and 63: CUPTI Callback APIData Structures
Page 64 and 65: Enable or disabled all callbacks fo
Page 66 and 67: Enumerator:CUPTI_CBID_RESOURCE_INVA
Page 68 and 69: Parameters:enable New enable state
Page 70 and 71: CUptiResult cuptiUnsubscribe (CUpti
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Page 76 and 77: CUPTI Event APIData Structures◮ s
Page 78 and 79: CUPTI_EVENT_GROUP_ATTR_NUM_EVENTS =
Page 80 and 81: ∗eventValueBuffer, size_t ∗even
Page 82 and 83: CUPTI_DEVICE_ATTR_MAX_EVENT_DOMAIN_
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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
Page 92 and 93: Parameters:eventGroup The event gro
Page 96 and 97: Return values:CUPTI_SUCCESSCUPTI_ER
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Page 100 and 101: CUPTI_METRIC_VALUE_KIND_PERCENT = 2
Page 102 and 103: enum CUpti_MetricCategoryEach metri
Page 104 and 105: metricArray Returns the IDs of the
Page 106 and 107: CUPTI_ERROR_NOT_INITIALIZEDCUPTI_ER
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