COMPMID-631: Merge branches/gles_compute branch

Last commit:
commit b25c5f68042b0c81bf611d59a1bb8535e1c42497
Author: Xinghang Zhou <xinghang.zhou@arm.com>
Date:   Wed Oct 25 18:48:10 2017 +0800

    Synced validation's tolerances of GCSoftmax from cl side

Change-Id: Ibe72054205c1c8721845d679a31af7ed0a7c5cf6
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/93283
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/src/core/GLES_COMPUTE/kernels/GCSoftmaxLayerKernel.cpp b/src/core/GLES_COMPUTE/kernels/GCSoftmaxLayerKernel.cpp
new file mode 100644
index 0000000..09a0f79
--- /dev/null
+++ b/src/core/GLES_COMPUTE/kernels/GCSoftmaxLayerKernel.cpp
@@ -0,0 +1,353 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "arm_compute/core/GLES_COMPUTE/kernels/GCSoftmaxLayerKernel.h"
+
+#include "arm_compute/core/AccessWindowStatic.h"
+#include "arm_compute/core/GLES_COMPUTE/GCHelpers.h"
+#include "arm_compute/core/GLES_COMPUTE/GCKernelLibrary.h"
+#include "arm_compute/core/GLES_COMPUTE/IGCTensor.h"
+#include "arm_compute/core/GLES_COMPUTE/OpenGLES.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Utils.h"
+#include "arm_compute/core/Validate.h"
+#include "arm_compute/core/Window.h"
+
+#include <set>
+#include <string>
+
+using namespace arm_compute;
+
+void GCLogits1DMaxKernel::configure(const IGCTensor *input, IGCTensor *output)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F16, DataType::F32);
+    ARM_COMPUTE_ERROR_ON_NULLPTR(output);
+
+    // Softmax across the x dimension
+    TensorShape output_shape{ input->info()->tensor_shape() };
+    output_shape.set(0, 1);
+
+    // Output auto initialization if not yet initialized
+    auto_init_if_empty(*output->info(), output_shape, 1, input->info()->data_type(), input->info()->fixed_point_position());
+
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, output);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_DIMENSIONS(output->info()->tensor_shape(), output_shape);
+
+    _input  = input;
+    _output = output;
+
+    // Set build options
+    std::set<std::string> build_opts;
+    std::string           dt_name = (input->info()->data_type() == DataType::F32) ? "DATA_TYPE_FP32" : "DATA_TYPE_FP16";
+    build_opts.insert("#define " + dt_name);
+    build_opts.emplace("#define LOCAL_SIZE_X " + support::cpp11::to_string(1));
+    build_opts.emplace("#define LOCAL_SIZE_Y " + support::cpp11::to_string(1));
+    build_opts.emplace("#define LOCAL_SIZE_Z " + support::cpp11::to_string(1));
+    build_opts.insert("#define SOFTMAX_LAYER_MAX");
+
+    // Tell the kernel that the width is not a multiple of 4
+    if((input->info()->dimension(0) % 4) != 0)
+    {
+        build_opts.insert("#define NON_MULTIPLE_OF_4");
+    }
+
+    // Create kernel
+    _kernel = static_cast<GCKernel>(GCKernelLibrary::get().create_kernel("softmax_layer_max", build_opts));
+
+    _kernel.clear_params();
+
+    // Set fixed arguments
+    unsigned int idx = 2 * num_arguments_per_3D_tensor(); //Skip the input and output parameters
+    _kernel.set_params(idx++, input->info()->dimension(0));
+
+    // Configure kernel window
+    // The kernel loops over all elements in steps of 4
+    const unsigned int num_elems_processed_per_iteration = ceil_to_multiple(input->info()->dimension(0), 4);
+    unsigned int       num_elems_written_per_iteration   = 1;
+    if(input->info()->data_type() == DataType::F16)
+    {
+        num_elems_written_per_iteration = 2;
+    }
+
+    Window                 win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
+    AccessWindowHorizontal input_access(input->info(), 0, num_elems_processed_per_iteration);
+    AccessWindowHorizontal output_access(output->info(), 0, num_elems_written_per_iteration);
+
+    update_window_and_padding(win, input_access, output_access);
+
+    output_access.set_valid_region(win, ValidRegion(Coordinates(), output->info()->tensor_shape()));
+
+    // set shader params binding point
+    _kernel.set_shader_params_binding_point(0);
+
+    IGCKernel::configure(win);
+}
+
+void GCLogits1DMaxKernel::run(const Window &window)
+{
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IKernel::window(), window);
+
+    Window slice = window.first_slice_window_3D();
+
+    _kernel.use();
+
+    do
+    {
+        unsigned int idx1 = 0;
+        switch(_input->info()->data_type())
+        {
+            case DataType::F16:
+                add_3D_tensor_argument(idx1, _input, BufferParam(1, 2), slice);
+                add_3D_tensor_argument(idx1, _output, BufferParam(2, 2), slice);
+                break;
+
+            case DataType::F32:
+                add_3D_tensor_argument(idx1, _input, BufferParam(1, 2), slice);
+                add_3D_tensor_argument(idx1, _output, BufferParam(2, 2), slice);
+                break;
+
+            default:
+                ARM_COMPUTE_ERROR("Current data type is mot supported");
+                break;
+        }
+
+        _kernel.update_shader_params();
+        enqueue(*this, slice);
+    }
+    while(window.slide_window_slice_3D(slice));
+}
+
+GCLogits1DShiftExpSumKernel::GCLogits1DShiftExpSumKernel()
+    : _input(nullptr), _max(nullptr), _output(nullptr), _sum(nullptr)
+{
+}
+
+void GCLogits1DShiftExpSumKernel::configure(const IGCTensor *input, const IGCTensor *max, IGCTensor *output, IGCTensor *sum)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F16, DataType::F32);
+    ARM_COMPUTE_ERROR_ON_NULLPTR(max, sum, output);
+
+    // Output auto initialization if not yet initialized
+    auto_init_if_empty(*sum->info(), max->info()->tensor_shape(), 1, input->info()->data_type(), input->info()->fixed_point_position());
+    auto_init_if_empty(*output->info(), input->info()->tensor_shape(), 1, input->info()->data_type(), input->info()->fixed_point_position());
+
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, output, max, sum);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input, output);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(max, sum);
+
+    _input  = input;
+    _max    = max;
+    _output = output;
+    _sum    = sum;
+
+    // Set build options
+    std::set<std::string> build_opts;
+    std::string           dt_name = (input->info()->data_type() == DataType::F32) ? "DATA_TYPE_FP32" : "DATA_TYPE_FP16";
+    build_opts.insert("#define " + dt_name);
+    build_opts.emplace("#define LOCAL_SIZE_X " + support::cpp11::to_string(1));
+    build_opts.emplace("#define LOCAL_SIZE_Y " + support::cpp11::to_string(1));
+    build_opts.emplace("#define LOCAL_SIZE_Z " + support::cpp11::to_string(1));
+    build_opts.insert("#define SOFTMAX_LAYER_SHIFT_EXP_SUM");
+
+    // Tell the kernel that the width is not a multiple of 4
+    if((input->info()->dimension(0) % 4) != 0)
+    {
+        build_opts.insert("#define NON_MULTIPLE_OF_4");
+    }
+
+    // Create kernel
+    _kernel = static_cast<GCKernel>(GCKernelLibrary::get().create_kernel("softmax_layer_shift_exp_sum", build_opts));
+
+    _kernel.clear_params();
+
+    // Set fixed arguments
+    unsigned int idx = 4 * num_arguments_per_3D_tensor(); //Skip the input and output parameters
+    _kernel.set_params(idx++, input->info()->dimension(0));
+
+    // Configure window
+    // The kernel loops over all elements in steps of 4
+    const unsigned int num_elems_processed_per_iteration = ceil_to_multiple(input->info()->dimension(0), 4);
+    unsigned int       num_elems_written_per_iteration   = 1;
+    if(input->info()->data_type() == DataType::F16)
+    {
+        num_elems_written_per_iteration = 2;
+    }
+
+    Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
+
+    AccessWindowHorizontal input_access(input->info(), 0, num_elems_processed_per_iteration);
+    AccessWindowHorizontal max_access(max->info(), 0, num_elems_written_per_iteration);
+    AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration);
+    AccessWindowHorizontal sum_access(sum->info(), 0, num_elems_written_per_iteration);
+
+    update_window_and_padding(win, input_access, max_access, output_access, sum_access);
+
+    output_access.set_valid_region(win, input->info()->valid_region());
+    sum_access.set_valid_region(win, ValidRegion(Coordinates(), sum->info()->tensor_shape()));
+
+    // set shader params binding point
+    _kernel.set_shader_params_binding_point(0);
+
+    IGCKernel::configure(win);
+}
+
+void GCLogits1DShiftExpSumKernel::run(const Window &window)
+{
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IKernel::window(), window);
+
+    Window window_collapsed = window.collapse_if_possible(IGCKernel::window(), Window::DimZ);
+    Window slice            = window_collapsed.first_slice_window_3D();
+
+    _kernel.use();
+
+    do
+    {
+        unsigned int idx = 0;
+        switch(_input->info()->data_type())
+        {
+            case DataType::F16:
+                add_3D_tensor_argument(idx, _input, BufferParam(1, 2), slice);
+                add_3D_tensor_argument(idx, _max, BufferParam(2, 2), slice);
+                add_3D_tensor_argument(idx, _output, BufferParam(3, 2), slice);
+                add_3D_tensor_argument(idx, _sum, BufferParam(4, 2), slice);
+                break;
+
+            case DataType::F32:
+                add_3D_tensor_argument(idx, _input, BufferParam(1, 2), slice);
+                add_3D_tensor_argument(idx, _max, BufferParam(2, 2), slice);
+                add_3D_tensor_argument(idx, _output, BufferParam(3, 2), slice);
+                add_3D_tensor_argument(idx, _sum, BufferParam(4, 2), slice);
+                break;
+
+            default:
+                ARM_COMPUTE_ERROR("Current data type is mot supported");
+                break;
+        }
+
+        _kernel.update_shader_params();
+        enqueue(*this, slice);
+    }
+    while(window_collapsed.slide_window_slice_3D(slice));
+}
+
+GCLogits1DNormKernel::GCLogits1DNormKernel()
+    : _input(nullptr), _sum(nullptr), _output(nullptr)
+{
+}
+
+void GCLogits1DNormKernel::configure(const IGCTensor *input, const IGCTensor *sum, IGCTensor *output)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F16, DataType::F32);
+    ARM_COMPUTE_ERROR_ON_NULLPTR(sum, output);
+
+    // Output auto initialization if not yet initialized
+    auto_init_if_empty(*output->info(), input->info()->tensor_shape(), 1, input->info()->data_type(), input->info()->fixed_point_position());
+
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, sum, output);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_FIXED_POINT_POSITION(input, sum, output);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input, output);
+
+    _input  = input;
+    _sum    = sum;
+    _output = output;
+
+    // Set build options
+    std::set<std::string> build_opts;
+    std::string           dt_name = (input->info()->data_type() == DataType::F32) ? "DATA_TYPE_FP32" : "DATA_TYPE_FP16";
+    build_opts.insert("#define " + dt_name);
+    build_opts.emplace("#define LOCAL_SIZE_X " + support::cpp11::to_string(1));
+    build_opts.emplace("#define LOCAL_SIZE_Y " + support::cpp11::to_string(1));
+    build_opts.emplace("#define LOCAL_SIZE_Z " + support::cpp11::to_string(1));
+    build_opts.insert("#define SOFTMAX_LAYER_NORM");
+
+    // Create kernel
+    _kernel = static_cast<GCKernel>(GCKernelLibrary::get().create_kernel("softmax_layer_norm", build_opts));
+
+    // Configure window
+    constexpr unsigned int num_elems_processed_per_iteration = 4;
+    unsigned int           num_elems_written_per_iteration   = 1;
+    if(input->info()->data_type() == DataType::F16)
+    {
+        num_elems_written_per_iteration = 2;
+    }
+
+    Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
+
+    AccessWindowHorizontal input_access(input->info(), 0, num_elems_processed_per_iteration);
+    AccessWindowStatic     sum_access(sum->info(), 0, 0, num_elems_written_per_iteration, sum->info()->dimension(1));
+    AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration);
+
+    update_window_and_padding(win, input_access, sum_access, output_access);
+
+    output_access.set_valid_region(win, input->info()->valid_region());
+
+    _kernel.clear_params();
+
+    // set shader params binding point
+    _kernel.set_shader_params_binding_point(0);
+
+    IGCKernel::configure(win);
+}
+
+void GCLogits1DNormKernel::run(const Window &window)
+{
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IKernel::window(), window);
+
+    Window window_collapsed = window.collapse_if_possible(IGCKernel::window(), Window::DimZ);
+    Window slice            = window_collapsed.first_slice_window_3D();
+
+    _kernel.use();
+
+    do
+    {
+        Window sum_slice = slice;
+        sum_slice.set(Window::DimX, Window::Dimension(0, 1, 1));
+
+        unsigned int idx1 = 0;
+        switch(_input->info()->data_type())
+        {
+            case DataType::F16:
+                add_3D_tensor_argument(idx1, _input, BufferParam(1, 2), slice);
+                add_3D_tensor_argument(idx1, _sum, BufferParam(2, 2), slice);
+                add_3D_tensor_argument(idx1, _output, BufferParam(3, 2), slice);
+                break;
+
+            case DataType::F32:
+                add_3D_tensor_argument(idx1, _input, BufferParam(1, 2), slice);
+                add_3D_tensor_argument(idx1, _sum, BufferParam(2, 2), slice);
+                add_3D_tensor_argument(idx1, _output, BufferParam(3, 2), slice);
+                break;
+
+            default:
+                ARM_COMPUTE_ERROR("Current data type is mot supported");
+                break;
+        }
+
+        _kernel.update_shader_params();
+        enqueue(*this, slice);
+    }
+    while(window_collapsed.slide_window_slice_3D(slice));
+}