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-rw-r--r--arm_compute/runtime/NEON/functions/NESoftmaxLayer.h58
1 files changed, 32 insertions, 26 deletions
diff --git a/arm_compute/runtime/NEON/functions/NESoftmaxLayer.h b/arm_compute/runtime/NEON/functions/NESoftmaxLayer.h
index b80ceaf25c..c5c83d8b5a 100644
--- a/arm_compute/runtime/NEON/functions/NESoftmaxLayer.h
+++ b/arm_compute/runtime/NEON/functions/NESoftmaxLayer.h
@@ -48,6 +48,10 @@ class ITensor;
* -# @ref NEFillBorderKernel
* -# @ref NELogits1DMaxKernel
* -# @ref NELogits1DSoftmaxKernel
+ * And if the reduce_end_axis is not 0 or -input_num_dimensions, the function will use one of the the following kernels
+ * to reshape the input and perform softmax on the reshaped input:
+ * -# @ref NEFlattenLayerKernel
+ * -# @ref NEReshapeLayerKernel
*/
template <bool IS_LOG = false>
class NESoftmaxLayerGeneric : public IFunction
@@ -65,30 +69,31 @@ public:
NESoftmaxLayerGeneric &operator=(NESoftmaxLayerGeneric &&) = default;
/** Set the input and output tensors.
*
- * @param[in,out] input Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. If the width is not a
- * multiple of the internal processing block size, @ref NEFillBorderKernel replicates the
- * last value of each row to the nearest multiple.
- * @param[out] output Destination tensor. Data types supported: same as @p input.
- * @param[in] beta (Optional) A scaling factor for the exponent.
- * @param[in] axis (Optional) Reduction axis. Defaults to -1.
- * Negative index is used to specify axis from the end (e.g. -1 for the last axis).Must be in range [-input_num_dimensions, input_num_dimensions).
- * It has the purpose of squashing the first @p axis dimensions together. For instance, given a [4x4x4x4] image,
- * when @p axis is 2, the Softmax reduction will be applied on each of the [4x4] planes of the input image.
+ * @param[in,out] input Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. If the width is not a
+ * multiple of the internal processing block size, @ref NEFillBorderKernel replicates the
+ * last value of each row to the nearest multiple.
+ * @param[out] output Destination tensor. Data types supported: same as @p input.
+ * @param[in] beta (Optional) A scaling factor for the exponent.
+ * @param[in] reduce_end_axis (Optional) The last axis of the first n dimensions (inclusive)to reduce. Defaults to 0.
+ * It has the purpose of squashing together the first n dimensions till (including) the @p reduce_end_axis. For instance, given a [2x3x4x5] image,
+ * when @p reduce_end_axis is 1, the reduction will be applied to axes 0 and 1, and the Softmax op will be applied on each of the [2x3] planes of the input image.
+ * Negative index is used to specify axis from the end (e.g. -1 for the last axis).
+ * Must be in range [-input_num_dimensions, input_num_dimensions).
*/
- void configure(ITensor *input, ITensor *output, float beta = 1.0f, int32_t axis = -1);
+ void configure(ITensor *input, ITensor *output, float beta = 1.0f, int32_t reduce_end_axis = 0);
/** Static function to check if given info will lead to a valid configuration of @ref NESoftmaxLayer
*
- * @param[in] input Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
- * @param[in] output Destination tensor info. Data types supported: same as @p input
- * @param[in] beta (Optional) A scaling factor for the exponent.
- * @param[in] axis (Optional) Reduction axis. Defaults to -1.
- * Negative index is used to specify axis from the end (e.g. -1 for the last axis).Must be in range [-input_num_dimensions, input_num_dimensions).
- * It has the purpose of squashing the first @p axis dimensions together. For instance, given a [4x4x4x4] image,
- * when @p axis is 2, the Softmax reduction will be applied on each of the [4x4] planes of the input image.
- *
+ * @param[in] input Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
+ * @param[in] output Destination tensor info. Data types supported: same as @p input
+ * @param[in] beta (Optional) A scaling factor for the exponent.
+ * @param[in] reduce_end_axis (Optional) The last axis of the first n dimensions (inclusive)to reduce. Defaults to 0.
+ * It has the purpose of squashing together the first n dimensions till (including) the @p reduce_end_axis. For instance, given a [2x3x4x5] image,
+ * when @p reduce_end_axis is 1, the reduction will be applied to axes 0 and 1, and the Softmax op will be applied on each of the [2x3] planes of the input image.
+ * Negative index is used to specify axis from the end (e.g. -1 for the last axis).
+ * Must be in range [-input_num_dimensions, input_num_dimensions).
* @return a status
*/
- static Status validate(const ITensorInfo *input, const ITensorInfo *output, float beta = 1.0f, int32_t axis = -1);
+ static Status validate(const ITensorInfo *input, const ITensorInfo *output, float beta = 1.0f, int32_t reduce_end_axis = 0);
// Inherited methods overridden:
void run() override;
@@ -101,14 +106,15 @@ private:
* it initializes the kernel @p _flatten_kernel and the tensors @p _input_flat and
* @p _output_flat
*
- * @param[in] input Original source tensor.
- * @param[in] output Original destination tensor.
- * @param[in] axis (Optional) Reduction axis. Defaults to -1.
- * Negative index is used to specify axis from the end (e.g. -1 for the last axis).Must be in range [-input_num_dimensions, input_num_dimensions).
- * It has the purpose of squashing the first @p axis dimensions together. For instance, given a [4x4x4x4] image,
- * when @p axis is 2, the Softmax reduction will be applied on each of the [4x4] planes of the input image.
+ * @param[in] input Original source tensor.
+ * @param[in] output Original destination tensor.
+ * @param[in] reduce_end_axis (Optional) The last axis of the first n dimensions (inclusive)to reduce. Defaults to 0.
+ * It has the purpose of squashing together the first n dimensions till (including) the @p reduce_end_axis. For instance, given a [2x3x4x5] image,
+ * when @p reduce_end_axis is 1, the reduction will be applied to axes 0 and 1, and the Softmax op will be applied on each of the [2x3] planes of the input image.
+ * Negative index is used to specify axis from the end (e.g. -1 for the last axis).
+ * Must be in range [-input_num_dimensions, input_num_dimensions).
*/
- void configure_reshape_input_kernel(const ITensor *input, const ITensor *output, int32_t axis);
+ void configure_reshape_input_kernel(const ITensor *input, const ITensor *output, int32_t reduce_end_axis);
MemoryGroup _memory_group;
NELogits1DMaxKernel _max_kernel;