3.41. CUpti_ActivityNvLink Struct Reference
[CUPTI Activity API]
This structure gives capabilities of each logical NVLink connection between two devices, gpu<->gpu or gpu<->CPU which can be used to understand the topology. NVLink information are now reported using the CUpti_ActivityNvLink2 activity record.
Public Variables
- uint64_t bandwidth
- uint32_t domainId
- uint32_t flag
- CUpti_ActivityNvLink::@17 idDev0
- CUpti_ActivityNvLink::@18 idDev1
- uint32_t index
- CUpti_ActivityKind kind
- uint32_t nvlinkVersion
- uint32_t physicalNvLinkCount
- int8_t portDev0[4]
- int8_t portDev1[4]
- CUpti_DevType typeDev0
- CUpti_DevType typeDev1
Variables
- uint64_t CUpti_ActivityNvLink::bandwidth [inherited]
-
Banwidth of NVLink in kbytes/sec
- uint32_t CUpti_ActivityNvLink::domainId [inherited]
-
Domain ID of NPU. On Linux, this can be queried using lspci.
- uint32_t CUpti_ActivityNvLink::flag [inherited]
- CUpti_ActivityNvLink::@17 CUpti_ActivityNvLink::idDev0 [inherited]
-
If typeDev0 is CUPTI_DEV_TYPE_GPU, UUID for device 0. CUpti_ActivityDevice2. If typeDev0 is CUPTI_DEV_TYPE_NPU, struct npu for NPU.
- CUpti_ActivityNvLink::@18 CUpti_ActivityNvLink::idDev1 [inherited]
-
If typeDev1 is CUPTI_DEV_TYPE_GPU, UUID for device 1. CUpti_ActivityDevice2. If typeDev1 is CUPTI_DEV_TYPE_NPU, struct npu for NPU.
- uint32_t CUpti_ActivityNvLink::index [inherited]
-
Index of the NPU. First index will always be zero.
- CUpti_ActivityKindCUpti_ActivityNvLink::kind [inherited]
-
The activity record kind, must be CUPTI_ACTIVITY_KIND_NVLINK.
- uint32_t CUpti_ActivityNvLink::nvlinkVersion [inherited]
-
NVLink version.
- uint32_t CUpti_ActivityNvLink::physicalNvLinkCount [inherited]
-
Number of physical NVLinks present between two devices.
- int8_t CUpti_ActivityNvLink::portDev0[4] [inherited]
-
Port numbers for maximum 4 NVLinks connected to device 0. If typeDev0 is CUPTI_DEV_TYPE_NPU, ignore this field. In case of invalid/unknown port number, this field will be set to value CUPTI_NVLINK_INVALID_PORT. This will be used to correlate the metric values to individual physical link and attribute traffic to the logical NVLink in the topology.
- int8_t CUpti_ActivityNvLink::portDev1[4] [inherited]
-
Port numbers for maximum 4 NVLinks connected to device 1. If typeDev1 is CUPTI_DEV_TYPE_NPU, ignore this field. In case of invalid/unknown port number, this field will be set to value CUPTI_NVLINK_INVALID_PORT. This will be used to correlate the metric values to individual physical link and attribute traffic to the logical NVLink in the topology.
- CUpti_DevTypeCUpti_ActivityNvLink::typeDev0 [inherited]
-
Type of device 0 CUpti_DevType
- CUpti_DevTypeCUpti_ActivityNvLink::typeDev1 [inherited]
-
Type of device 1 CUpti_DevType