aclmdlLoadFromMem

Applicability

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

Description

Loads offline model data from memory. The model workspace is managed by the system.

Prototype

aclError aclmdlLoadFromMem(const void *model, size_t modelSize, uint32_t *modelId)

Parameters

Parameter

Input/Output

Description

model

Input

Pointer to the address of the memory that stores the model.

In Ascend EP form, allocate memory on the host.

In Ascend RC form, allocate memory on the device.

In Open Ctrl CPU form form, allocate memory on the device.

For details about the memory allocation API, see Memory Management.

modelSize

Input

Size of the model data in the memory, in bytes.

modelId

Output

Pointer to the model ID.

Returns the model ID after the model is successfully loaded. The model ID is used for model identification in subsequent operations.

Returns

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

Restrictions

The operations of loading, executing, and unloading a model must be performed in the same context. For details about how to create a context, see or . Before loading the model file, check whether the memory space is sufficient based on the size of the model file. If the memory space is insufficient, the application will be abnormal.

See Also

For the API call sequence, see Loading a Model.

The aclmdlSetConfigOpt and aclmdlLoadWithConfig APIs are provided for model loading. The caller needs to set the attributes in the configuration object passed to the API call to decide how the model will be loaded and who will manage the memory.