6.53. CUpti_ActivityMemcpyPtoP3
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struct CUpti_ActivityMemcpyPtoP3
The activity record for peer-to-peer memory copies.
(deprecated in CUDA 11.6)
This activity record represents a peer-to-peer memory copy (CUPTI_ACTIVITY_KIND_MEMCPY2).
Public Members
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CUpti_ActivityKind kind
The activity record kind, must be CUPTI_ACTIVITY_KIND_MEMCPY2.
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uint8_t copyKind
The kind of the memory copy, stored as a byte to reduce record size.
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uint8_t srcKind
The source memory kind read by the memory copy, stored as a byte to reduce record size.
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uint8_t dstKind
The destination memory kind read by the memory copy, stored as a byte to reduce record size.
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uint8_t flags
The flags associated with the memory copy.
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uint64_t bytes
The number of bytes transferred by the memory copy.
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uint64_t start
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.
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uint64_t end
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.
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uint32_t deviceId
The ID of the device where the memory copy is occurring.
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uint32_t contextId
The ID of the context where the memory copy is occurring.
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uint32_t streamId
The ID of the stream where the memory copy is occurring.
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uint32_t srcDeviceId
The ID of the device where memory is being copied from.
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uint32_t srcContextId
The ID of the context owning the memory being copied from.
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uint32_t dstDeviceId
The ID of the device where memory is being copied to.
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uint32_t dstContextId
The ID of the context owning the memory being copied to.
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uint32_t correlationId
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.
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void *reserved0
Undefined.
Reserved for internal use.
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uint64_t graphNodeId
The unique ID of the graph node that executed the memcpy through graph launch.
This field will be 0 if memcpy is not done using graph launch.
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uint32_t graphId
The unique ID of the graph that executed this memcpy through graph launch.
This field will be 0 if the memcpy is not done through graph launch.
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uint32_t padding
Undefined.
Reserved for internal use.
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CUpti_ActivityKind kind