Enter

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Product Support Status

Product	Supported
Ascend 950PR&950DT products	√
Atlas A3 products	√
Atlas A2 products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	√

Function Description

Creates or finds a child frame and makes the input tensor x available in the child frame. The Enter operator works with the Exit operator to create loops in a graph. Frames are identified by the unique frame_name attribute. When is_constant is true, the output tensor y is constant within the child frame; otherwise, it may be changed within the child frame. The output tensor y has the same shape and data type as the input tensor x.

Parameter Description

Parameter Name	Input/Output/Attribute	Description	Data Type	Data Format
x	Input	Input tensor, which needs to be available in the child frame.	float16, float32, float64, int8, int16, int32, int64, uint8, uint16, uint32, uint64, bool	ND
frame_name	Attribute	Name of the child frame. Frames are identified by this unique name.	String, required	-
is_constant	Attribute	If true, the output is constant within the child frame; otherwise, it may be changed within the child frame.	Bool, required	-
y	Output	Tensor that has the same shape and data type as the input tensor x.	float16, float32, float64, int8, int16, int32, int64, uint8, uint16, uint32, uint64, bool	ND

Constraint Description

• frame_name and is_constant are required attributes.
• The data type and shape of the output tensor y must be consistent with those of the input tensor x.

Invocation Description

The Enter operator is a control flow operator. It usually works with the Exit operator to create loops in a graph and is not invoked separately.

Invocation Method	Invocation Sample	Description
Graph-mode invocation	test_geir_enter	Invokes the Enter operator by building a graph through the operator IR