Compute Library
 21.02
NEReverseKernel Class Reference

Interface for the reverse layer kernel. More...

#include <NEReverseKernel.h>

Collaboration diagram for NEReverseKernel:
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Public Member Functions

const char * name () const override
 Name of the kernel. More...
 
 NEReverseKernel ()
 Default constructor. More...
 
 NEReverseKernel (const NEReverseKernel &)=delete
 Prevent instances of this class from being copied (As this class contains pointers) More...
 
NEReverseKerneloperator= (const NEReverseKernel &)=delete
 Prevent instances of this class from being copied (As this class contains pointers) More...
 
 NEReverseKernel (NEReverseKernel &&)=default
 Allow instances of this class to be moved. More...
 
NEReverseKerneloperator= (NEReverseKernel &&)=default
 Allow instances of this class to be moved. More...
 
 ~NEReverseKernel ()=default
 Default destructor. More...
 
void configure (const ITensor *input, ITensor *output, const ITensor *axis)
 Initialise the kernel's inputs and output. More...
 
void run (const Window &window, const ThreadInfo &info) override
 Execute the kernel on the passed window. More...
 
- Public Member Functions inherited from ICPPKernel
virtual ~ICPPKernel ()=default
 Default destructor. More...
 
virtual void run_nd (const Window &window, const ThreadInfo &info, const Window &thread_locator)
 legacy compatibility layer for implemantions which do not support thread_locator In these cases we simply narrow the interface down the legacy version More...
 
virtual void run_op (ITensorPack &tensors, const Window &window, const ThreadInfo &info)
 Execute the kernel on the passed window. More...
 
- Public Member Functions inherited from IKernel
 IKernel ()
 Constructor. More...
 
virtual ~IKernel ()=default
 Destructor. More...
 
virtual bool is_parallelisable () const
 Indicates whether or not the kernel is parallelisable. More...
 
virtual BorderSize border_size () const
 The size of the border for that kernel. More...
 
const Windowwindow () const
 The maximum window the kernel can be executed on. More...
 

Static Public Member Functions

static Status validate (const ITensorInfo *input, const ITensorInfo *output, const ITensorInfo *axis)
 Static function to check if given info will lead to a valid configuration of NEReverseKernel. More...
 

Detailed Description

Interface for the reverse layer kernel.

Definition at line 34 of file NEReverseKernel.h.

Constructor & Destructor Documentation

◆ NEReverseKernel() [1/3]

Default constructor.

Definition at line 58 of file NEReverseKernel.cpp.

Referenced by NEReverseKernel::name().

59  : _input(nullptr), _output(nullptr), _axis(nullptr)
60 {
61 }

◆ NEReverseKernel() [2/3]

NEReverseKernel ( const NEReverseKernel )
delete

Prevent instances of this class from being copied (As this class contains pointers)

◆ NEReverseKernel() [3/3]

NEReverseKernel ( NEReverseKernel &&  )
default

Allow instances of this class to be moved.

◆ ~NEReverseKernel()

~NEReverseKernel ( )
default

Default destructor.

Referenced by NEReverseKernel::name().

Member Function Documentation

◆ configure()

void configure ( const ITensor input,
ITensor output,
const ITensor axis 
)

Initialise the kernel's inputs and output.

Parameters
[in]inputInput tensor. Data types supported: All
[out]outputOutput tensor. Data type supported: Same as input
[in]axisAxis tensor. Contains the indices of the dimensions to reverse. Data type supported: U32

Definition at line 63 of file NEReverseKernel.cpp.

References ARM_COMPUTE_ERROR_ON_NULLPTR, ARM_COMPUTE_ERROR_THROW_ON, arm_compute::auto_init_if_empty(), arm_compute::calculate_max_window(), ICloneable< T >::clone(), ITensor::info(), arm_compute::test::validation::input, and arm_compute::validate_arguments().

Referenced by NEReverseKernel::name().

64 {
65  ARM_COMPUTE_ERROR_ON_NULLPTR(input, output, axis);
66 
67  _input = input;
68  _output = output;
69  _axis = axis;
70 
71  // Output tensor auto initialization if not yet initialized
72  auto_init_if_empty(*output->info(), *input->info()->clone());
73 
74  ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(input->info(), output->info(), axis->info()));
75 
76  // Configure kernel window
77  INEKernel::configure(calculate_max_window(*output->info()));
78 }
Window calculate_max_window(const ValidRegion &valid_region, const Steps &steps, bool skip_border, BorderSize border_size)
#define ARM_COMPUTE_ERROR_THROW_ON(status)
Definition: Error.h:455
bool auto_init_if_empty(ITensorInfo &info, const TensorShape &shape, int num_channels, DataType data_type, QuantizationInfo quantization_info=QuantizationInfo())
Auto initialize the tensor info (shape, number of channels and data type) if the current assignment i...
Status validate_arguments(const ITensorInfo *input, const ITensorInfo *bias, const ITensorInfo *output, const GEMMLowpOutputStageInfo *output_stage)
#define ARM_COMPUTE_ERROR_ON_NULLPTR(...)
Definition: Validate.h:161

◆ name()

const char* name ( ) const
inlineoverridevirtual

◆ operator=() [1/2]

NEReverseKernel& operator= ( const NEReverseKernel )
delete

Prevent instances of this class from being copied (As this class contains pointers)

Referenced by NEReverseKernel::name().

◆ operator=() [2/2]

NEReverseKernel& operator= ( NEReverseKernel &&  )
default

Allow instances of this class to be moved.

◆ run()

void run ( const Window window,
const ThreadInfo info 
)
overridevirtual

Execute the kernel on the passed window.

Warning
If is_parallelisable() returns false then the passed window must be equal to window()
Note
The window has to be a region within the window returned by the window() method
The width of the window has to be a multiple of num_elems_processed_per_iteration().
Parameters
[in]windowRegion on which to execute the kernel. (Must be a region of the window returned by window())
[in]infoInfo about executing thread and CPU.

Reimplemented from ICPPKernel.

Definition at line 145 of file NEReverseKernel.cpp.

References ARM_COMPUTE_ERROR, ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW, ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL, ARM_COMPUTE_UNUSED, ITensorInfo::element_size(), ITensor::info(), and IKernel::window().

Referenced by NEReverseKernel::name().

146 {
150 
151  switch(_input->info()->element_size())
152  {
153  case 4:
154  run_reverse<uint32_t>(window, _input, _axis, _output);
155  break;
156  case 2:
157  run_reverse<uint16_t>(window, _input, _axis, _output);
158  break;
159  case 1:
160  run_reverse<uint8_t>(window, _input, _axis, _output);
161  break;
162  default:
163  ARM_COMPUTE_ERROR("Element size not supported");
164  }
165 }
const Window & window() const
The maximum window the kernel can be executed on.
Definition: IKernel.cpp:28
#define ARM_COMPUTE_ERROR(msg)
Print the given message then throw an std::runtime_error.
Definition: Error.h:352
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
virtual ITensorInfo * info() const =0
Interface to be implemented by the child class to return the tensor&#39;s metadata.
virtual size_t element_size() const =0
Element size in bytes calculated as data_size() * num_channels()
#define ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(k)
Definition: Validate.h:941
ScaleKernelInfo info(interpolation_policy, default_border_mode, PixelValue(), sampling_policy, false)
#define ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(f, s)
Definition: Validate.h:205

◆ validate()

Status validate ( const ITensorInfo input,
const ITensorInfo output,
const ITensorInfo axis 
)
static

Static function to check if given info will lead to a valid configuration of NEReverseKernel.

Parameters
[in]inputInput tensor info. Data types supported: All
[in]outputOutput tensor info. Data type supported: Same as input
[in]axisAxis tensor info. Contains the indices of the dimensions to reverse. Data type supported: U32
Returns
a status

Definition at line 80 of file NEReverseKernel.cpp.

References ARM_COMPUTE_RETURN_ON_ERROR, and arm_compute::validate_arguments().

Referenced by NEReverseKernel::name(), and NEReverse::validate().

81 {
83 
84  return Status{};
85 }
#define ARM_COMPUTE_RETURN_ON_ERROR(status)
Checks if a status contains an error and returns it.
Definition: Error.h:204
Status validate_arguments(const ITensorInfo *input, const ITensorInfo *bias, const ITensorInfo *output, const GEMMLowpOutputStageInfo *output_stage)

The documentation for this class was generated from the following files: