aclrtIpcMemSetImportPid

Applicability

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	☓
Atlas inference product	√
Atlas training product	√

Description

Sets the trustlist of processes that can share memory through IPC.

This API must work with other APIs to implement memory sharing. For details, see the description of aclrtIpcMemGetExportKey.

Prototype

aclError aclrtIpcMemSetImportPid(const char *key, int32_t *pid, size_t num)

Parameters

Parameter	Input/Output	Description
key	Input	Memory key obtained by calling aclrtIpcMemGetExportKey.
pid	Input	Array for storing trustlisted process IDs. You can call aclrtDeviceGetBareTgid to obtain the process ID. In the Docker scenario, the process ID on the physical machine is obtained. In the non-Docker scenario, the process ID is obtained.
num	Input	Number of processes in the trustlist. The value must be the same as the size of the pid parameter array.

Parameter

Input/Output

Description

key

Input

Memory key obtained by calling aclrtIpcMemGetExportKey.

pid

Input

Array for storing trustlisted process IDs.

You can call aclrtDeviceGetBareTgid to obtain the process ID. In the Docker scenario, the process ID on the physical machine is obtained. In the non-Docker scenario, the process ID is obtained.

num

Input

Number of processes in the trustlist. The value must be the same as the size of the pid parameter array.

Returns

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

Parent topic: Memory Management