.. index:: pair: page; Abs .. _doxid-dev_guide_op_abs: Abs === General ~~~~~~~ Abs operation performs element-wise the absolute value with given tensor, it applies following formula on every element of :math:`\src` tensor (the variable names follow the standard :ref:`Naming Conventions `): .. math:: dst = \begin{cases} src & \text{if}\ src \ge 0 \\ -src & \text{if}\ src < 0 \end{cases} Operation attributes ~~~~~~~~~~~~~~~~~~~~ Abs operation does not support any attribute. Execution arguments ~~~~~~~~~~~~~~~~~~~ The inputs and outputs must be provided according to below index order when constructing an operation. Inputs ------ ====== ============== ===================== Index Argument Name Required or Optional ====== ============== ===================== 0 ``src`` Required ====== ============== ===================== Outputs ------- ====== ============== ===================== Index Argument Name Required or Optional ====== ============== ===================== 0 ``dst`` Required ====== ============== ===================== Supported data types ~~~~~~~~~~~~~~~~~~~~ Abs operation supports the following data type combinations. ===== ===== Src Dst ===== ===== f32 f32 f16 f16 bf16 bf16 ===== ===== Implementation Notes ~~~~~~~~~~~~~~~~~~~~ Abs supports in-place operations, meaning that ``src`` can be used as both input and output (``dst``). In case of in-place operation, the original ``src`` data will be overwritten. Use in-place operations whenever possible for performance.