IsClose

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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

• Operator function: returns a new tensor with Boolean elements, which indicates whether the given self and other are close to each other. If the values are close, it returns True; otherwise, it returns False.

• Computation formula: Returns a new tensor out whose data type is BOOL, indicating whether each element of the input self is "close" to the corresponding element of the input other. closeness is defined as:

  $$\left|sel{f}_i-othe{r}_i\right|\le atol+rtol\times \left|othe{r}_i\right|$$

  The preceding formula holds when both self and other are finite values. When both self and other are non-finite, the result is True only when they are equal. If equal_nan is True, NaNs are considered close; if equal_nan is False, NaNs are considered not close.

Parameter Description

Parameter Name	Input/Output/Attribute	Description	Data Type	Data Format
x1	Input	Input parameter for the is_close computation, which is self_i in the formula.	BFLOAT16, FLOAT16, FLOAT, INT32	ND
x2	Input	Input parameter for the is_close computation, which is other_i in the formula.	BFLOAT16, FLOAT16, FLOAT, INT32	ND
rtol	Input	Input parameter for the is_close computation, which is rtol in the formula.	FLOAT	ND
atol	Input	Input parameter for the is_close computation, which is atol in the formula.	FLOAT	ND
equal_nan	Input	Input parameter for the is_close computation.	BOOL	ND
y	Output	Output parameter for the is_close computation.	BOOL	ND

Constraint Description

None

Invocation Description

Invocation Method	Invocation Sample	Description
aclnn invocation	test_aclnn_isclose	Invokes the IsClose operator through the aclnnIsClose API.