.. index:: pair: page; LogSoftmaxBackward .. _doxid-dev_guide_op_logsoftmaxbackward: LogSoftmaxBackward ================== General ~~~~~~~ LogSoftmaxBackward operation computes gradient for LogSoftmax. Operation attributes ~~~~~~~~~~~~~~~~~~~~ ================================================================================================================= =================================================================================================================== ==== ========================================= ========= Attribute Name Descr ================================================================================================================= =================================================================================================================== ==== ========================================= ========= :ref:`axis ` Represents the axis of which the LogSoftmax is calculated. Negative value means counting dimensions from the back. s64 Arbitrary s64 value ( ``-1`` in default) Optional ================================================================================================================= =================================================================================================================== ==== ========================================= ========= Execution arguments ~~~~~~~~~~~~~~~~~~~ The inputs and outputs must be provided according to below index order when constructing an operation. Inputs ------ ====== ============= ========= Index Argu ====== ============= ========= 0 ``diff_dst`` Required 1 ``src`` Required ====== ============= ========= Outputs ------- ====== ============= ========= Index Argu ====== ============= ========= 0 ``diff_src`` Required ====== ============= ========= Supported data types ~~~~~~~~~~~~~~~~~~~~ LogSoftmaxBackward operation supports the following data type combinations. ===== ===== Src D ===== ===== f32 f32 bf16 bf16 f16 f16 ===== =====