CUPTI User's Guide

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Parameters:eventGroup The event groupReturn values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_HARDWARECUPTI_ERROR_INVALID_PARAMETER if eventGroup is NULLCUptiResult cuptiEventGroupEnable (CUpti_EventGroupeventGroup)Enable an event group. Enabling an event group zeros the value of all the events in thegroup and then starts collection of those events.Parameters:eventGroup The event groupReturn values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_HARDWARECUPTI_ERROR_NOT_READY if eventGroup does not contain any eventsCUPTI_ERROR_NOT_COMPATIBLE if eventGroup cannot be enabled due toother already enabled event groupsCUPTI_ERROR_INVALID_PARAMETER if eventGroup is NULLCUptiResult cuptiEventGroupGetAttribute (CUpti_EventGroupeventGroup, CUpti_EventGroupAttribute attrib, size_t ∗valueSize, void ∗ value)Read an event group attribute and return it in ∗value.Parameters:eventGroup The event groupattrib The attribute to readvalueSize Size of buffer pointed by the value, and returns the number of bytes writtento valuevalue Returns the value of the attributeCUDA Tools SDK CUPTI User’s Guide DA-05679-001_v01 | 92
Return values:CUPTI_SUCCESSCUPTI_ERROR_NOT_INITIALIZEDCUPTI_ERROR_INVALID_PARAMETER if valueSize or value is NULL, or ifattrib is not an eventgroup attributeCUPTI_ERROR_PARAMETER_SIZE_NOT_SUFFICIENT For non-c-stringattribute values, indicates that the value buffer is too small to hold the attributevalue.CUptiResult cuptiEventGroupReadAllEvents (CUpti_EventGroupeventGroup, CUpti_ReadEventFlags flags, size_t ∗eventValueBufferSizeBytes, uint64_t ∗ eventValueBuffer, size_t ∗eventIdArraySizeBytes, CUpti_EventID ∗ eventIdArray, size_t ∗numEventIdsRead)Read the values for all the events in an event group. The event values are returned in theeventValueBuffer buffer. eventValueBufferSizeBytes indicates the size ofeventValueBuffer. The buffer must be at least (sizeof(uint64) ∗ number of events ingroup) if CUPTI_EVENT_GROUP_ATTR_PROFILE_ALL_DOMAIN_INSTANCESis not set on the group containing the events. The buffer must be at least (sizeof(uint64) ∗number of domain instances ∗ number of events in group) ifCUPTI_EVENT_GROUP_ATTR_PROFILE_ALL_DOMAIN_INSTANCES is set onthe group.The data format returned in eventValueBuffer is:◮ domain instance 0: event0 event1 ... eventN◮ domain instance 1: event0 event1 ... eventN◮ ...◮ domain instance M: event0 event1 ... eventNThe event order in eventValueBuffer is returned in eventIdArray. The size ofeventIdArray is specified in eventIdArraySizeBytes. The size should be at least(sizeof(CUpti_EventID) ∗ number of events in group).If any instance of any 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 events from a disabled event group is not allowed.Parameters:eventGroup The event groupCUDA Tools SDK CUPTI User’s Guide DA-05679-001_v01 | 93
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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
Page 42 and 43: CUpti_Activity Type ReferenceThe ba
Page 44 and 45: CUpti_ActivityKind CUpti_ActivityAP
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
Page 60 and 61: CUpti_ActivityMetric Type Reference
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
Page 72 and 73: context.uint32_t CUpti_CallbackData
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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 94 and 95: flags Flags controlling the reading
Page 96 and 97: Return values:CUPTI_SUCCESSCUPTI_ER
Page 98 and 99: CUPTI_ERROR_INVALID_OPERATION if an
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
Page 108 and 109: CUPTI_ERROR_INVALID_PARAMETER if me
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