aclrtGetGroupCount

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

Queries the number of available groups in the current context.

Prototype

aclError  aclrtGetGroupCount(uint32_t *count)

Parameters

Parameter	Input/Output	Description
count	Output	Pointer to the number of available groups in the current context.

Restrictions

This API can be called only in the Ctrl CPU open form of the Atlas inference product. This API cannot be called in the Ascend EP of the Atlas inference product.

acl API call sequence: aclrtSetDevice (specifies a compute device) --> aclrtGetAllGroupInfo (obtains the information of all groups) --> aclrtGetGroupCount (obtains the group count) --> aclrtGetGroupInfoDetail (obtains the information of a specified group) --> aclrtSetGroup (sets a group) --> execution of other tasks --> aclrtResetDevice (resets the compute device).

Before calling the acl API to set the computing power group, call the DCMI API dcmi_create_capability_group provided by the driver to create a group. If the group is updated (for example, the dcmi_create_capability_group API is called to add a group or the dcmi_delete_capability_group API is called to delete a group), the service process needs to be restarted.

Parent topic: Group Management