Apply optimized cpu kernel for AvgPoolFloat32 (#7834)
author장지섭/On-Device Lab(SR)/Engineer/삼성전자 <jiseob.jang@samsung.com>
Tue, 1 Oct 2019 07:35:56 +0000 (16:35 +0900)
committer오형석/On-Device Lab(SR)/Staff Engineer/삼성전자 <hseok82.oh@samsung.com>
Tue, 1 Oct 2019 07:35:56 +0000 (16:35 +0900)
This commit applies optimized cpu kernel for AvgPoolFloat32.
  - Introduce introduce optimized cpu kernel of AvgPool2D op
  - Apply that kernel for AvgPoolFloat32

Signed-off-by: jiseob.jang <jiseob.jang@samsung.com>
infra/nnfw/cmake/options/options_aarch64-tizen.cmake
infra/nnfw/cmake/options/options_armv7l-tizen.cmake
runtimes/libs/cker/CMakeLists.txt
runtimes/libs/cker/include/cker/Types.h
runtimes/libs/cker/include/cker/Utils.h
runtimes/libs/cker/include/cker/eigen/Utils.h [new file with mode: 0644]
runtimes/libs/cker/include/cker/operation/AveragePool.h
runtimes/libs/cker/include/cker/operation/optimized/AveragePool.h [new file with mode: 0644]
runtimes/libs/cker/include/cker/operation/reference/AveragePool.h [new file with mode: 0644]

index 530659d..eff8100 100644 (file)
@@ -4,6 +4,7 @@
 option(BUILD_GTEST "Download and build Google Test" OFF)
 option(BUILD_ARMCOMPUTE "Build ARM Compute from the downloaded source" OFF)
 option(BUILD_TENSORFLOW_LITE "Build TensorFlow Lite from the downloaded source" OFF)
+option(DOWNLOAD_EIGEN "Download Eigen source" OFF)
 option(DOWNLOAD_NEON2SSE "Download NEON2SSE library source" OFF)
 option(DOWNLOAD_NNPACK "Download NNPACK source" OFF)
 
index e2b8081..9fe8f1f 100644 (file)
@@ -4,6 +4,7 @@
 option(BUILD_GTEST "Download and build Google Test" OFF)
 option(BUILD_ARMCOMPUTE "Build ARM Compute from the downloaded source" OFF)
 option(BUILD_TENSORFLOW_LITE "Build TensorFlow Lite from the downloaded source" OFF)
+option(DOWNLOAD_EIGEN "Download Eigen source" OFF)
 option(DOWNLOAD_NEON2SSE "Download NEON2SSE library source" OFF)
 option(DOWNLOAD_NNPACK "Download NNPACK source" OFF)
 
index 16a13f5..f81ee2a 100644 (file)
@@ -1,2 +1,9 @@
 add_library(nnfw_lib_cker INTERFACE)
+
+nnfw_find_package(Eigen QUIET)
+if(Eigen_FOUND)
+  target_link_libraries(nnfw_lib_cker INTERFACE eigen)
+  target_compile_definitions(nnfw_lib_cker INTERFACE CKER_OPTIMIZED_EIGEN)
+endif(Eigen_FOUND)
+
 target_include_directories(nnfw_lib_cker INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/include)
index d8dedbd..4c2569f 100644 (file)
@@ -45,6 +45,23 @@ struct PaddingValues
   int16_t height;
 };
 
+struct AveragePoolParams
+{
+  FusedActivationFunctionType activation;
+  PaddingType padding_type;
+  PaddingValues padding_values;
+  int stride_height;
+  int stride_width;
+  int filter_height;
+  int filter_width;
+  // uint8, etc, activation params.
+  int32_t quantized_activation_min;
+  int32_t quantized_activation_max;
+  // float activation params.
+  float float_activation_min;
+  float float_activation_max;
+};
+
 } // namespace cker
 } // namespace nnfw
 
index 84bbbc3..4c5a525 100644 (file)
@@ -49,6 +49,11 @@ inline int32_t MultiplyByQuantizedMultiplierGreaterThanOne(int32_t x, int32_t qu
   return gemmlowp::SaturatingRoundingDoublingHighMul(x * (1 << left_shift), quantized_multiplier);
 }
 
+inline int NodeOffset(int b, int h, int w, int height, int width)
+{
+  return (b * height + h) * width + w;
+}
+
 inline int CountLeadingZeros(uint32_t integer_input)
 {
   const uint32_t one_in_leading_positive = 1U << 31;
diff --git a/runtimes/libs/cker/include/cker/eigen/Utils.h b/runtimes/libs/cker/include/cker/eigen/Utils.h
new file mode 100644 (file)
index 0000000..645a614
--- /dev/null
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright 2018 The TensorFlow Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NNFW_CKER_EIGEN_UTILS_H__
+#define __NNFW_CKER_EIGEN_UTILS_H__
+
+#if defined(CKER_OPTIMIZED_EIGEN)
+
+#include <Eigen/Core>
+#include <type_traits>
+#include "cker/Shape.h"
+
+namespace nnfw
+{
+namespace cker
+{
+
+// Make a local VectorMap typedef allowing to map a float array
+// as a Eigen matrix expression. The same explanation as for VectorMap
+// above also applies here.
+template <typename Scalar>
+using MatrixMap = typename std::conditional<
+    std::is_const<Scalar>::value,
+    Eigen::Map<const Eigen::Matrix<typename std::remove_const<Scalar>::type, Eigen::Dynamic,
+                                   Eigen::Dynamic>>,
+    Eigen::Map<Eigen::Matrix<Scalar, Eigen::Dynamic, Eigen::Dynamic>>>::type;
+
+template <typename Scalar>
+MatrixMap<Scalar> MapAsMatrixWithLastDimAsRows(Scalar *data, const Shape &shape)
+{
+  const int dims_count = shape.DimensionsCount();
+  const int rows = shape.Dims(dims_count - 1);
+  const int cols = FlatSizeSkipDim(shape, dims_count - 1);
+  return MatrixMap<Scalar>(data, rows, cols);
+}
+
+} // namespace cker
+} // namespace nnfw
+
+#endif // defined(CKER_OPTIMIZED_EIGEN)
+
+#endif // __NNFW_CKER_EIGEN_UTILS_H__
index 81e9933..f790982 100644 (file)
 #ifndef __NNFW_CKER_AVERAGE_POOL_H__
 #define __NNFW_CKER_AVERAGE_POOL_H__
 
-#include "cker/Shape.h"
-#include "cker/Types.h"
-#include "cker/Utils.h"
+#if defined(CKER_OPTIMIZED_EIGEN)
+#include "cker/operation/optimized/AveragePool.h"
+#endif // defined(CKER_OPTIMIZED_EIGEN)
+
+#include "cker/operation/reference/AveragePool.h"
 
 namespace nnfw
 {
 namespace cker
 {
 
-struct AveragePoolParams
-{
-  FusedActivationFunctionType activation;
-  PaddingType padding_type;
-  PaddingValues padding_values;
-  int stride_height;
-  int stride_width;
-  int filter_height;
-  int filter_width;
-  // uint8, etc, activation params.
-  int32_t quantized_activation_min;
-  int32_t quantized_activation_max;
-  // float activation params.
-  float float_activation_min;
-  float float_activation_max;
-};
-
 inline void AveragePool(const AveragePoolParams &params, const Shape &input_shape,
                         const float *input_data, const Shape &output_shape, float *output_data)
 {
-  assert(input_shape.DimensionsCount() == 4);
-  assert(output_shape.DimensionsCount() == 4);
-  const int batches = MatchingDim(input_shape, 0, output_shape, 0);
-  const int depth = MatchingDim(input_shape, 3, output_shape, 3);
-  const int input_height = input_shape.Dims(1);
-  const int input_width = input_shape.Dims(2);
-  const int output_height = output_shape.Dims(1);
-  const int output_width = output_shape.Dims(2);
-  const int stride_height = params.stride_height;
-  const int stride_width = params.stride_width;
-  for (int batch = 0; batch < batches; ++batch)
-  {
-    for (int out_y = 0; out_y < output_height; ++out_y)
-    {
-      for (int out_x = 0; out_x < output_width; ++out_x)
-      {
-        const int in_x_origin = (out_x * stride_width) - params.padding_values.width;
-        const int in_y_origin = (out_y * stride_height) - params.padding_values.height;
-        // Compute the boundaries of the filter region clamped so as to
-        // ensure that the filter window fits in the input array.
-        const int filter_x_start = std::max(0, -in_x_origin);
-        const int filter_x_end = std::min(params.filter_width, input_width - in_x_origin);
-        const int filter_y_start = std::max(0, -in_y_origin);
-        const int filter_y_end = std::min(params.filter_height, input_height - in_y_origin);
-        int filter_count = (filter_y_end - filter_y_start) * (filter_x_end - filter_x_start);
-        if (filter_count <= 0)
-        {
-          continue;
-        }
-        for (int channel = 0; channel < depth; ++channel)
-        {
-          float total = 0.f;
-          for (int filter_y = filter_y_start; filter_y < filter_y_end; ++filter_y)
-          {
-            for (int filter_x = filter_x_start; filter_x < filter_x_end; ++filter_x)
-            {
-              const int in_x = in_x_origin + filter_x;
-              const int in_y = in_y_origin + filter_y;
-              total += input_data[Offset(input_shape, batch, in_y, in_x, channel)];
-            }
-          }
-          const float average = total / (float)filter_count;
-          output_data[Offset(output_shape, batch, out_y, out_x, channel)] =
-              ActivationFunctionWithMinMax(average, params.float_activation_min,
-                                           params.float_activation_max);
-        }
-      }
-    }
-  }
+#if defined(CKER_OPTIMIZED_EIGEN)
+  optimized::AveragePool(params, input_shape, input_data, output_shape, output_data);
+#else  // defined(CKER_OPTIMIZED_EIGEN)
+  reference::AveragePool(params, input_shape, input_data, output_shape, output_data);
+#endif // defined(CKER_OPTIMIZED_EIGEN)
 }
 
 inline void AveragePool(const AveragePoolParams &params, const Shape &input_shape,
diff --git a/runtimes/libs/cker/include/cker/operation/optimized/AveragePool.h b/runtimes/libs/cker/include/cker/operation/optimized/AveragePool.h
new file mode 100644 (file)
index 0000000..f2aa70e
--- /dev/null
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright 2018 The TensorFlow Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NNFW_CKER_OPTIMIZED_AVERAGE_POOL_H__
+#define __NNFW_CKER_OPTIMIZED_AVERAGE_POOL_H__
+
+#if defined(CKER_OPTIMIZED_EIGEN)
+
+#include "cker/eigen/Utils.h"
+#include "cker/Shape.h"
+#include "cker/Types.h"
+#include "cker/Utils.h"
+#include <Eigen/Core>
+
+namespace nnfw
+{
+namespace cker
+{
+namespace optimized
+{
+
+// TODO Change to apply neon for this function if it is faster
+inline void AveragePool(const AveragePoolParams &params, const Shape &input_shape,
+                        const float *input_data, const Shape &output_shape, float *output_data)
+{
+  assert(input_shape.DimensionsCount() == 4);
+  assert(output_shape.DimensionsCount() == 4);
+  const int batches = MatchingDim(input_shape, 0, output_shape, 0);
+  const int input_height = input_shape.Dims(1);
+  const int input_width = input_shape.Dims(2);
+  const int output_height = output_shape.Dims(1);
+  const int output_width = output_shape.Dims(2);
+  const int stride_height = params.stride_height;
+  const int stride_width = params.stride_width;
+
+  // TODO(benoitjacob) make this a proper reference impl without Eigen!
+  const auto in_mat = MapAsMatrixWithLastDimAsRows(input_data, input_shape);
+  auto out_mat = MapAsMatrixWithLastDimAsRows(output_data, output_shape);
+  // TODO(benoitjacob) get rid of the dynamic memory allocation here!
+  Eigen::VectorXf out_count(out_mat.cols());
+  out_count.setZero();
+  // Prefill the output to 0.
+  out_mat.setZero();
+  for (int b = 0; b < batches; ++b)
+  {
+    for (int h = 0; h < input_height; ++h)
+    {
+      for (int w = 0; w < input_width; ++w)
+      {
+        // (h_start, h_end) * (w_start, w_end) is the range that the input
+        // vector projects to.
+        int hpad = h + params.padding_values.height;
+        int wpad = w + params.padding_values.width;
+        int h_start =
+            (hpad < params.filter_height) ? 0 : (hpad - params.filter_height) / stride_height + 1;
+        int h_end = std::min(hpad / stride_height + 1, output_height);
+        int w_start =
+            (wpad < params.filter_width) ? 0 : (wpad - params.filter_width) / stride_width + 1;
+        int w_end = std::min(wpad / stride_width + 1, output_width);
+        // compute elementwise sum
+        for (int ph = h_start; ph < h_end; ++ph)
+        {
+          for (int pw = w_start; pw < w_end; ++pw)
+          {
+            int out_offset = NodeOffset(b, ph, pw, output_height, output_width);
+            out_mat.col(out_offset) += in_mat.col(NodeOffset(b, h, w, input_height, input_width));
+            out_count(out_offset)++;
+          }
+        }
+      }
+    }
+  }
+  // Divide the output by the actual number of elements being averaged over
+  assert(out_count.minCoeff() > 0);
+  out_mat.array().rowwise() /= out_count.transpose().array();
+
+  const int flat_size = output_shape.FlatSize();
+  for (int i = 0; i < flat_size; ++i)
+  {
+    output_data[i] = ActivationFunctionWithMinMax(output_data[i], params.float_activation_min,
+                                                  params.float_activation_max);
+  }
+}
+
+} // namespace optimized
+} // namespace cker
+} // namespace nnfw
+
+#endif // defined(CKER_OPTIMIZED_EIGEN)
+
+#endif // __NNFW_CKER_OPTIMIZED_AVERAGE_POOL_H__
diff --git a/runtimes/libs/cker/include/cker/operation/reference/AveragePool.h b/runtimes/libs/cker/include/cker/operation/reference/AveragePool.h
new file mode 100644 (file)
index 0000000..729ab3d
--- /dev/null
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright 2017 The TensorFlow Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NNFW_CKER_REFERENCE_AVERAGE_POOL_H__
+#define __NNFW_CKER_REFERENCE_AVERAGE_POOL_H__
+
+#include "cker/Shape.h"
+#include "cker/Types.h"
+#include "cker/Utils.h"
+
+namespace nnfw
+{
+namespace cker
+{
+namespace reference
+{
+
+inline void AveragePool(const AveragePoolParams &params, const Shape &input_shape,
+                        const float *input_data, const Shape &output_shape, float *output_data)
+{
+  assert(input_shape.DimensionsCount() == 4);
+  assert(output_shape.DimensionsCount() == 4);
+  const int batches = MatchingDim(input_shape, 0, output_shape, 0);
+  const int depth = MatchingDim(input_shape, 3, output_shape, 3);
+  const int input_height = input_shape.Dims(1);
+  const int input_width = input_shape.Dims(2);
+  const int output_height = output_shape.Dims(1);
+  const int output_width = output_shape.Dims(2);
+  const int stride_height = params.stride_height;
+  const int stride_width = params.stride_width;
+  for (int batch = 0; batch < batches; ++batch)
+  {
+    for (int out_y = 0; out_y < output_height; ++out_y)
+    {
+      for (int out_x = 0; out_x < output_width; ++out_x)
+      {
+        const int in_x_origin = (out_x * stride_width) - params.padding_values.width;
+        const int in_y_origin = (out_y * stride_height) - params.padding_values.height;
+        // Compute the boundaries of the filter region clamped so as to
+        // ensure that the filter window fits in the input array.
+        const int filter_x_start = std::max(0, -in_x_origin);
+        const int filter_x_end = std::min(params.filter_width, input_width - in_x_origin);
+        const int filter_y_start = std::max(0, -in_y_origin);
+        const int filter_y_end = std::min(params.filter_height, input_height - in_y_origin);
+        int filter_count = (filter_y_end - filter_y_start) * (filter_x_end - filter_x_start);
+        if (filter_count <= 0)
+        {
+          continue;
+        }
+        for (int channel = 0; channel < depth; ++channel)
+        {
+          float total = 0.f;
+          for (int filter_y = filter_y_start; filter_y < filter_y_end; ++filter_y)
+          {
+            for (int filter_x = filter_x_start; filter_x < filter_x_end; ++filter_x)
+            {
+              const int in_x = in_x_origin + filter_x;
+              const int in_y = in_y_origin + filter_y;
+              total += input_data[Offset(input_shape, batch, in_y, in_x, channel)];
+            }
+          }
+          const float average = total / (float)filter_count;
+          output_data[Offset(output_shape, batch, out_y, out_x, channel)] =
+              ActivationFunctionWithMinMax(average, params.float_activation_min,
+                                           params.float_activation_max);
+        }
+      }
+    }
+  }
+}
+
+} // namespace reference
+} // namespace cker
+} // namespace nnfw
+
+#endif // __NNFW_CKER_REFERENCE_AVERAGE_POOL_H__