Compute Library
 21.05
ClFillKernel.cpp
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25 
31 #include "arm_compute/core/Utils.h"
33 #include "src/core/CL/CLValidate.h"
36 #include "support/Cast.h"
37 #include "support/StringSupport.h"
38 
39 namespace arm_compute
40 {
41 namespace opencl
42 {
43 namespace kernels
44 {
46  const PixelValue &constant_value,
47  Window *window)
48 {
49  configure(CLKernelLibrary::get().get_compile_context(), tensor, constant_value, window);
50 }
51 
52 void ClFillKernel::configure(const CLCompileContext &compile_context, ITensorInfo *tensor,
53  const PixelValue &constant_value,
54  Window *window)
55 {
57  ARM_COMPUTE_ERROR_THROW_ON(validate(tensor, constant_value, window));
58 
59  const DataType data_type = tensor->data_type();
60  const int vec_size_x = 16 / tensor->element_size();
61 
62  // Create and update the window (if needed)
63  _full_window = calculate_max_window(*tensor);
64  Window win = _full_window;
65  if(window != nullptr)
66  {
68  win = *window;
69  }
70 
71  const int output_width_x = win.num_iterations(0);
72  const bool multi_access_x = output_width_x >= vec_size_x;
73  const bool remainder_x = output_width_x % vec_size_x > 0;
74 
75  if(multi_access_x)
76  {
77  win.set(Window::DimX, Window::Dimension(win.x().start(), ceil_to_multiple(win.x().end(), vec_size_x), vec_size_x));
78  }
79  ICLKernel::configure_internal(win);
80 
81  // Create kernel
82  CLBuildOptions build_opts;
83  build_opts.add_option("-DDATA_TYPE=" + get_cl_type_from_data_type(data_type));
84  build_opts.add_option("-DCONSTANT_VALUE=" + string_from_pixel_value(constant_value, data_type));
85  build_opts.add_option_if(multi_access_x, "-DVEC_SIZE=" + support::cpp11::to_string(vec_size_x));
86  build_opts.add_option_if(multi_access_x && remainder_x, "-DLAST_ACCESSED_X=" + support::cpp11::to_string(std::max<int>(output_width_x - vec_size_x, 0)));
87  _kernel = create_kernel(compile_context, "memset", build_opts.options());
88 }
89 
90 Status ClFillKernel::validate(const ITensorInfo *tensor, const PixelValue &constant_value, Window *window)
91 {
92  ARM_COMPUTE_UNUSED(tensor);
93  ARM_COMPUTE_UNUSED(constant_value);
94  if(window != nullptr)
95  {
97  }
98  return Status{};
99 }
100 
101 void ClFillKernel::run_op(ITensorPack &tensors, const Window &window, cl::CommandQueue &queue)
102 {
105 
106  const auto tensor = utils::cast::polymorphic_downcast<const ICLTensor *>(tensors.get_const_tensor(TensorType::ACL_SRC));
107 
108  // Collapse all the batches on the third
109  Window collapsed = window.collapse_if_possible(_full_window, Window::DimZ);
110  Window slice = collapsed.first_slice_window_3D();
111 
112  do
113  {
114  unsigned int idx = 0;
115  add_3D_tensor_argument(idx, tensor, slice);
116  enqueue(queue, *this, slice, lws_hint());
117  }
118  while(collapsed.slide_window_slice_3D(slice));
119 }
120 } // namespace kernels
121 } // namespace opencl
122 } // namespace arm_compute
Class describing the value of a pixel for any image format.
Definition: PixelValue.h:34
Window calculate_max_window(const ValidRegion &valid_region, const Steps &steps, bool skip_border, BorderSize border_size)
const Window & window() const
The maximum window the kernel can be executed on.
Definition: IKernel.cpp:28
void enqueue(cl::CommandQueue &queue, ICLKernel &kernel, const Window &window, const cl::NDRange &lws_hint=CLKernelLibrary::get().default_ndrange(), bool use_dummy_work_items=false)
Add the kernel to the command queue with the given window.
Definition: ICLKernel.cpp:32
const StringSet & options() const
Gets the current options list set.
constexpr int step() const
Return the step of the dimension.
Definition: Window.h:104
cl::NDRange lws_hint() const
Return the Local-Workgroup-Size hint.
Definition: ICLKernel.h:276
std::string to_string(T &&value)
Convert integer and float values to string.
virtual DataType data_type() const =0
Data type used for each element of the tensor.
std::string string_from_pixel_value(const PixelValue &value, const DataType data_type)
Convert a PixelValue to a string, represented through the specific data type.
Definition: Utils.cpp:248
static CLKernelLibrary & get()
Access the KernelLibrary singleton.
Store the tensor's metadata.
Definition: ITensorInfo.h:40
#define ARM_COMPUTE_ERROR_THROW_ON(status)
Definition: Error.h:455
Describe one of the image's dimensions with a start, end and step.
Definition: Window.h:77
Status class.
Definition: Error.h:52
constexpr size_t num_iterations(size_t dimension) const
Return the number of iterations needed to iterate through a given dimension.
Definition: Window.inl:182
#define ARM_COMPUTE_RETURN_ERROR_ON(cond)
If the condition is true, an error is returned.
Definition: Error.h:296
void add_3D_tensor_argument(unsigned int &idx, const ICLTensor *tensor, const Window &window)
Add the passed 3D tensor's parameters to the object's kernel's arguments starting from the index idx.
Definition: ICLKernel.h:172
Copyright (c) 2017-2021 Arm Limited.
void add_option(std::string option)
Adds option to the existing build option list.
const DataType data_type
Definition: Im2Col.cpp:150
const ITensor * get_const_tensor(int id) const
Get constant tensor of a given id.
Definition: ITensorPack.cpp:45
cl::Kernel create_kernel(const CLCompileContext &ctx, const std::string &kernel_name, const std::set< std::string > &build_opts=std::set< std::string >())
Creates an opencl kernel using a compile context.
Definition: CLHelpers.cpp:403
static constexpr size_t DimX
Alias for dimension 0 also known as X dimension.
Definition: Window.h:43
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
Window collapse_if_possible(const Window &full_window, size_t first, size_t last, bool *has_collapsed=nullptr) const
Collapse the dimensions between first and last if possible.
Definition: Window.inl:68
auto ceil_to_multiple(S value, T divisor) -> decltype(((value+divisor - 1)/divisor) *divisor)
Computes the smallest number larger or equal to value that is a multiple of divisor.
Definition: Utils.h:71
std::string get_cl_type_from_data_type(const DataType &dt)
Translates a tensor data type to the appropriate OpenCL type.
Definition: CLHelpers.cpp:37
static Status validate(const ITensorInfo *tensor, const PixelValue &constant_value, Window *window=nullptr)
Static function to check if given info will lead to a valid configuration of ClFillKernel.
void add_option_if(bool cond, std::string option)
Adds option if a given condition is true;.
virtual size_t element_size() const =0
Element size in bytes calculated as data_size() * num_channels()
void set(size_t dimension, const Dimension &dim)
Set the values of a given dimension.
Definition: Window.inl:49
void run_op(ITensorPack &tensors, const Window &window, cl::CommandQueue &queue) override
Enqueue the OpenCL kernel to process the given window on the passed OpenCL command queue.
#define ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(k)
Definition: Validate.h:915
CLCompileContext class.
void configure(ITensorInfo *tensor, const PixelValue &constant_value, Window *window=nullptr)
Initialise the kernel's tensor and filling value.
static constexpr size_t DimZ
Alias for dimension 2 also known as Z dimension.
Definition: Window.h:47
Manages all the OpenCL kernels compilation and caching, provides accessors for the OpenCL Context.
Tensor packing service.
Definition: ITensorPack.h:37
#define ARM_COMPUTE_ERROR_ON_NULLPTR(...)
Definition: Validate.h:157
constexpr int end() const
Return the end of the dimension.
Definition: Window.h:99
DataType
Available data types.
Definition: Types.h:77
constexpr int start() const
Return the start of the dimension.
Definition: Window.h:94
Describe a multidimensional execution window.
Definition: Window.h:39
#define ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(f, s)
Definition: Validate.h:201
SimpleTensor< T > slice(const SimpleTensor< T > &src, Coordinates starts, Coordinates ends)
constexpr const Dimension & x() const
Alias to access the first dimension of the window.
Definition: Window.h:145