aclrtIpcMemClose

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

Disables IPC-based memory sharing. Processes that call both aclrtIpcMemImportByKey and aclrtIpcMemGetExportKey also need to call this API.

For the same shared memory key, only after all processes that call aclrtIpcMemImportByKey have called aclrtIpcMemClose, all processes that call aclrtIpcMemGetExportKey can call aclrtIpcMemClose. Otherwise, exceptions may occur.

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

Prototype

      
           aclError aclrtIpcMemClose(const char *key)

Parameters

Parameter	Input/Output	Description
key	Input	Shared memory key obtained by calling aclrtIpcMemGetExportKey.

Returns

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

API Call Example

For the API call example, see Interprocess communication.

Parent topic: Memory Management