aclrtDevicePeerAccessStatus

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	√

Queries the data exchange status between two devices.

aclError aclrtDevicePeerAccessStatus(int32_t deviceId, int32_t peerDeviceId, int32_t *status)

Parameter	Input/Output	Description
deviceId	Input	ID of the specified device ID. Must be in the range of [0, Device count – 1]. Call aclrtGetDeviceCount to obtain the device count.
peerDeviceId	Input	ID of the specified device ID. Must be in the range of [0, Device count – 1]. Call aclrtGetDeviceCount to obtain the device count.
status	Output	Device status. 0 indicates that data exchange is disabled. 1 indicates that data exchange is enabled.

Parameter

Input/Output

Description

deviceId

Input

ID of the specified device ID.

Must be in the range of [0, Device count – 1]. Call aclrtGetDeviceCount to obtain the device count.

peerDeviceId

Input

ID of the specified device ID.

Must be in the range of [0, Device count – 1]. Call aclrtGetDeviceCount to obtain the device count.

status

Output

Device status. 0 indicates that data exchange is disabled. 1 indicates that data exchange is enabled.

0 on success; else, failure. For details, see aclError.

Parent topic: Device Management