Dot

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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

• Interface function: computes the dot product of two one-dimensional tensors.

• Computation formula:

$$self=[x_1,x_2,...,x_n]$$

$$tensor=[y_1,y_2,...,y_n]$$

$$out=x_1\ast y_1+x_2\ast y_2+...+x_n\ast y_n$$

Parameter Description

Parameter Name	Input/Output/Attribute	Description	Data Type	Data Format
self	Input	The input tensor involved in the dot product computation, which is self in the formula. Its data type is the same as those of tensor and out, and its shape is the same as that of tensor.	BFLOAT16, FLOAT16, FLOAT, INT8, INT32, UINT8	ND
tensor	Input	The input tensor involved in the dot product computation, which is tensor in the formula. Its data type is the same as those of self and out, and its shape is the same as that of self.	BFLOAT16, FLOAT16, FLOAT, INT8, INT32, UINT8	ND
out	Output	The dot product computation result, which is the output out in the formula. Its data type is the same as those of self and tensor.	BFLOAT16, FLOAT16, FLOAT, INT8, INT32, UINT8	ND

• Atlas inference products and Atlas training products: the BFLOAT16 data type is not supported.

Constraint Description

None

Invocation Description

Invocation Method	Invocation Sample	Description
aclnn invocation	test_aclnn_dot	Invokes the Dot operator through the aclnnDot API.