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## 3.34. CUpti_ActivityMemcpy2 Struct Reference

## [CUPTI Activity API]

This activity record represents a peer-to-peer memory copy (CUPTI_ACTIVITY_KIND_MEMCPY2).

### Public Variables

uint64_t bytes
uint32_t contextId
uint8_t copyKind
uint32_t correlationId
uint32_t deviceId
uint32_t dstContextId
uint32_t dstDeviceId
uint8_t dstKind
uint64_t end
uint8_t flags
CUpti_ActivityKind kind
uint32_t pad
void * reserved0
uint32_t srcContextId
uint32_t srcDeviceId
uint8_t srcKind
uint64_t start
uint32_t streamId

### Variables

uint64_t CUpti_ActivityMemcpy2::bytes [inherited]

  The number of bytes transferred by the memory copy.

uint32_t CUpti_ActivityMemcpy2::contextId [inherited]

  The ID of the context where the memory copy is occurring.

uint8_t CUpti_ActivityMemcpy2::copyKind [inherited]

  The kind of the memory copy, stored as a byte to reduce record size.

  See also:

  CUpti_ActivityMemcpyKind

uint32_t CUpti_ActivityMemcpy2::correlationId [inherited]

  The correlation ID of the memory copy. Each memory copy is assigned a unique correlation ID that is identical to the correlation ID in the driver and runtime API activity record that launched the memory copy.

uint32_t CUpti_ActivityMemcpy2::deviceId [inherited]

  The ID of the device where the memory copy is occurring.

uint32_t CUpti_ActivityMemcpy2::dstContextId [inherited]

  The ID of the context owning the memory being copied to.

uint32_t CUpti_ActivityMemcpy2::dstDeviceId [inherited]

  The ID of the device where memory is being copied to.

uint8_t CUpti_ActivityMemcpy2::dstKind [inherited]

  The destination memory kind read by the memory copy, stored as a byte to reduce record size.

  See also:

  CUpti_ActivityMemoryKind

uint64_t CUpti_ActivityMemcpy2::end [inherited]

  The end timestamp for the memory copy, in ns. A value of 0 for both the start and end timestamps indicates that timestamp information could not be collected for the memory copy.

uint8_t CUpti_ActivityMemcpy2::flags [inherited]

  The flags associated with the memory copy.

  See also:

  CUpti_ActivityFlag

CUpti_ActivityKind CUpti_ActivityMemcpy2::kind [inherited]

  The activity record kind, must be CUPTI_ACTIVITY_KIND_MEMCPY2.

uint32_t CUpti_ActivityMemcpy2::pad [inherited]

  Undefined. Reserved for internal use.

void * CUpti_ActivityMemcpy2::reserved0 [inherited]

  Undefined. Reserved for internal use.

uint32_t CUpti_ActivityMemcpy2::srcContextId [inherited]

  The ID of the context owning the memory being copied from.

uint32_t CUpti_ActivityMemcpy2::srcDeviceId [inherited]

  The ID of the device where memory is being copied from.

uint8_t CUpti_ActivityMemcpy2::srcKind [inherited]

  The source memory kind read by the memory copy, stored as a byte to reduce record size.

  See also:

  CUpti_ActivityMemoryKind

uint64_t CUpti_ActivityMemcpy2::start [inherited]

  The start timestamp for the memory copy, in ns. A value of 0 for both the start and end timestamps indicates that timestamp information could not be collected for the memory copy.

uint32_t CUpti_ActivityMemcpy2::streamId [inherited]

  The ID of the stream where the memory copy is occurring.