diff options
Diffstat (limited to 'src/core/CL/kernels/CLFFTRadixStageKernel.cpp')
| -rw-r--r-- | src/core/CL/kernels/CLFFTRadixStageKernel.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/core/CL/kernels/CLFFTRadixStageKernel.cpp b/src/core/CL/kernels/CLFFTRadixStageKernel.cpp new file mode 100644 index 0000000000..87a12b9da9 --- /dev/null +++ b/src/core/CL/kernels/CLFFTRadixStageKernel.cpp @@ -0,0 +1,163 @@ +/* + * Copyright (c) 2019 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/CL/kernels/CLFFTRadixStageKernel.h" + +#include "arm_compute/core/CL/CLHelpers.h" +#include "arm_compute/core/CL/CLKernelLibrary.h" +#include "arm_compute/core/CL/CLValidate.h" +#include "arm_compute/core/CL/ICLTensor.h" +#include "arm_compute/core/TensorInfo.h" +#include "arm_compute/core/Types.h" +#include "arm_compute/core/Utils.h" +#include "arm_compute/core/Window.h" + +#include <cmath> + +namespace arm_compute +{ +namespace +{ +Status validate_arguments(const ITensorInfo *input, const ITensorInfo *output, const FFTRadixStageKernelDescriptor &config) +{ + ARM_COMPUTE_RETURN_ERROR_ON_F16_UNSUPPORTED(input); + ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 2, DataType::F32); + ARM_COMPUTE_RETURN_ERROR_ON(config.axis != 0); + ARM_COMPUTE_RETURN_ERROR_ON(CLFFTRadixStageKernel::supported_radix().count(config.radix) == 0); + + // Checks performed when output is configured + if((output != nullptr) && (output->total_size() != 0)) + { + ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(input, output); + ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); + } + + return Status{}; +} + +std::pair<Status, Window> validate_and_configure_window(ITensorInfo *input, ITensorInfo *output, const FFTRadixStageKernelDescriptor &config) +{ + if(output != nullptr) + { + auto_init_if_empty(*output, *input); + } + + Window win = calculate_max_window(*input, Steps(config.radix)); + if(output != nullptr) + { + output->set_valid_region(ValidRegion(Coordinates(), output->tensor_shape())); + } + + return std::make_pair(Status{}, win); +} +} // namespace + +CLFFTRadixStageKernel::CLFFTRadixStageKernel() + : _input(nullptr), _output(nullptr), _run_in_place(false) +{ +} + +void CLFFTRadixStageKernel::configure(ICLTensor *input, ICLTensor *output, const FFTRadixStageKernelDescriptor &config) +{ + ARM_COMPUTE_ERROR_ON_NULLPTR(input); + ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(input->info(), (output != nullptr) ? output->info() : nullptr, config)); + + _input = input; + _output = output; + _run_in_place = (output == nullptr) || (output == input); + + // Create build options + CLBuildOptions build_opts; + build_opts.add_option_if(_run_in_place, "-DIN_PLACE"); + + // Create kernel + std::string kernel_name = "fft"; + kernel_name += "_radix_" + support::cpp11::to_string(config.radix); + kernel_name += (config.is_first_stage) ? "_first_stage" : ""; + kernel_name += "_axis_" + support::cpp11::to_string(config.axis); + _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel(kernel_name, build_opts.options())); + + // Set static arguments if not the first stage + if(!config.is_first_stage) + { + const unsigned int Ni = config.Nx * config.radix; + const float exp_const = (-2.0 * M_PI) / static_cast<float>(Ni); + unsigned int idx = (1 + (_run_in_place ? 0 : 1)) * num_arguments_per_3D_tensor(); // Skip the input and output parameters + _kernel.setArg<cl_uint>(idx++, config.Nx); + _kernel.setArg<cl_uint>(idx++, Ni); + _kernel.setArg<cl_float>(idx++, exp_const); + } + + // Configure kernel window + auto win_config = validate_and_configure_window(input->info(), (_run_in_place) ? nullptr : output->info(), config); + ARM_COMPUTE_ERROR_THROW_ON(win_config.first); + ICLKernel::configure_internal(win_config.second); + + // Set config_id for enabling LWS tuning + _config_id = kernel_name; + _config_id += "_"; + _config_id += lower_string(string_from_data_type(input->info()->data_type())); + _config_id += "_"; + _config_id += support::cpp11::to_string(input->info()->dimension(0)); + _config_id += "_"; + _config_id += support::cpp11::to_string(input->info()->dimension(1)); +} + +Status CLFFTRadixStageKernel::validate(const ITensorInfo *input, const ITensorInfo *output, const FFTRadixStageKernelDescriptor &config) +{ + const bool run_in_place = (output == nullptr) || (output == input); + ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(input, output, config)); + ARM_COMPUTE_RETURN_ON_ERROR(validate_and_configure_window(input->clone().get(), + (run_in_place) ? nullptr : output->clone().get(), + config) + .first); + + return Status{}; +} + +std::set<unsigned int> CLFFTRadixStageKernel::supported_radix() +{ + return std::set<unsigned int> { 2, 3, 4, 5, 7, 8 }; +} + +void CLFFTRadixStageKernel::run(const Window &window, cl::CommandQueue &queue) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window); + + Window collapsed = window.collapse_if_possible(ICLKernel::window(), Window::DimZ); + Window slice = collapsed.first_slice_window_3D(); + + do + { + unsigned int idx = 0; + add_3D_tensor_argument(idx, _input, slice); + if(!_run_in_place) + { + add_3D_tensor_argument(idx, _output, slice); + } + enqueue(queue, *this, slice, lws_hint()); + } + while(collapsed.slide_window_slice_3D(slice)); +} +} // namespace arm_compute |