COMPMID-741 - Changelog for major release 17.12

Change-Id: If71190e398217ca6ca44df822554998d047b79db
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/112716
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>

1 files changed, 107 insertions, 0 deletions

diff --git a/src/core/GLES_COMPUTE/kernels/GCDropoutLayerKernel.cpp b/src/core/GLES_COMPUTE/kernels/GCDropoutLayerKernel.cpp
new file mode 100644
index 0000000000..e87c902281
--- /dev/null
+++ b/src/core/GLES_COMPUTE/kernels/GCDropoutLayerKernel.cpp
@@ -0,0 +1,107 @@
+/*
+ * 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/GCDropoutLayerKernel.h"
+
+#include "arm_compute/core/Error.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/Types.h"
+#include "arm_compute/core/Validate.h"
+#include "support/ToolchainSupport.h"
+
+#include <cmath>
+#include <random>
+#include <tuple>
+
+using namespace arm_compute;
+
+GCDropoutLayerKernel::GCDropoutLayerKernel()
+    : _input(nullptr), _mask(nullptr), _output(nullptr), _num_elems_processed_per_iteration(0)
+{
+}
+
+void GCDropoutLayerKernel::configure(const IGCTensor *input, IGCTensor *mask, IGCTensor *output, float ratio, bool forward)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F16, DataType::F32);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, mask, output);
+
+    _input  = input;
+    _mask   = mask;
+    _output = output;
+
+    std::set<std::string>                 build_opts;
+    std::string                           dt_name = (input->info()->data_type() == DataType::F32) ? "DATA_TYPE_FP32" : "DATA_TYPE_FP16";
+    std::string                           fporbp  = forward ? "FORWARD" : "BACKWARD";
+    std::random_device                    rd;
+    std::mt19937                          mt(rd());
+    std::uniform_real_distribution<float> dist(0.f, 1.f);
+
+    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.emplace("#define RATIO " + support::cpp11::to_string(ratio));
+    build_opts.emplace("#define SCALE " + support::cpp11::to_string(1. / (1. - ratio)));
+    build_opts.emplace("#define SEED " + support::cpp11::to_string(dist(mt)));
+    build_opts.emplace("#define " + dt_name);
+    build_opts.emplace("#define " + fporbp);
+
+    _num_elems_processed_per_iteration = 4 / input->info()->element_size();
+
+    // Create kernel
+    _kernel = static_cast<GCKernel>(GCKernelLibrary::get().create_kernel("dropout", build_opts));
+
+    // Configure kernel window
+    Window win = calculate_max_window(*input->info(), Steps(_num_elems_processed_per_iteration));
+
+    output->info()->set_valid_region(ValidRegion(Coordinates(), output->info()->tensor_shape()));
+
+    IGCKernel::configure(win);
+}
+
+void GCDropoutLayerKernel::run(const Window &window)
+{
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_WINDOWS(IGCKernel::window(), window);
+
+    _kernel.use();
+
+    Window slice = window.first_slice_window_3D();
+
+    do
+    {
+        unsigned int idx = 0;
+
+        add_3D_tensor_argument(idx, _input, BufferParam(1, 2), slice);
+        add_3D_tensor_argument(idx, _mask, BufferParam(2, 2), slice);
+        add_3D_tensor_argument(idx, _output, BufferParam(3, 2), slice);
+
+        _kernel.update_shader_params();
+        enqueue(*this, slice);
+    }
+    while(window.slide_window_slice_3D(slice));
+}