Compute Library
 21.05
CpuActivationKernel Class Reference

Interface for the activation kernel. More...

#include <CpuActivationKernel.h>

Collaboration diagram for CpuActivationKernel:
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Public Member Functions

 CpuActivationKernel ()=default
 
 ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE (CpuActivationKernel)
 
void configure (const ITensorInfo *src, ITensorInfo *dst, ActivationLayerInfo activation_info)
 Configure kernel for a given list of arguments. More...
 
void run_op (ITensorPack &tensors, const Window &window, const ThreadInfo &info) override
 Execute the kernel on the passed window. More...
 
const char * name () const override
 Name of the kernel. More...
 
- Public Member Functions inherited from ICPPKernel
virtual ~ICPPKernel ()=default
 Default destructor. More...
 
virtual void run (const Window &window, const ThreadInfo &info)
 Execute the kernel on the passed window. 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...
 
- 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...
 
bool is_window_configured () const
 Function to check if the embedded window of this kernel has been configured. More...
 

Static Public Member Functions

static Status validate (const ITensorInfo *src, const ITensorInfo *dst, const ActivationLayerInfo &act_info)
 Static function to check if given info will lead to a valid configuration of CpuActivationKernel. More...
 

Detailed Description

Interface for the activation kernel.

Definition at line 37 of file CpuActivationKernel.h.

Constructor & Destructor Documentation

◆ CpuActivationKernel()

CpuActivationKernel ( )
default

Member Function Documentation

◆ ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE()

ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE ( CpuActivationKernel  )

◆ configure()

void configure ( const ITensorInfo src,
ITensorInfo dst,
ActivationLayerInfo  activation_info 
)

Configure kernel for a given list of arguments.

Note
If the output tensor is a nullptr, the activation function will be performed in-place
Parameters
[in,out]srcSource tensor info. In case of dst tensor = nullptr, this tensor will store the result of the activation function. Data types supported: QASYMM8/QASYMM8_SIGNED/QSYMM16/F16/F32.
[out]dstDestination tensor info. Data type supported: same as src
[in]activation_infoActivation layer information.

Definition at line 206 of file CpuActivationKernel.cpp.

207 {
209 
210  _act_info = activation_info;
211 
213 
214  // Configure kernel window
215  auto win_config = validate_and_configure_window(src, dst);
216  ARM_COMPUTE_ERROR_THROW_ON(win_config.first);
217  ICPPKernel::configure(win_config.second);
218 }
#define ARM_COMPUTE_ERROR_THROW_ON(status)
Definition: Error.h:455
SimpleTensor< float > src
Definition: DFT.cpp:155
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:157

References ARM_COMPUTE_ERROR_ON_NULLPTR, ARM_COMPUTE_ERROR_THROW_ON, arm_compute::test::validation::dst, arm_compute::test::validation::src, and arm_compute::validate_arguments().

◆ name()

const char * name ( ) const
overridevirtual

Name of the kernel.

Returns
Kernel name

Implements ICPPKernel.

Definition at line 251 of file CpuActivationKernel.cpp.

252 {
253  return "CpuActivationKernel";
254 }

◆ run_op()

void run_op ( ITensorPack tensors,
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]tensorsA vector containing the tensors to operate on.
[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 229 of file CpuActivationKernel.cpp.

230 {
231  // Early exit on disabled activation
232  if(!_act_info.enabled())
233  {
234  return;
235  }
236 
240 
241  ARM_COMPUTE_ERROR_ON(tensors.empty());
242 
243  const ITensor *src = tensors.get_const_tensor(TensorType::ACL_SRC);
244  ITensor *dst = tensors.get_tensor(TensorType::ACL_DST);
245 
246  const auto *uk = get_implementation(ActivationSelectorData{ src->info()->data_type() });
247 
248  uk->ukernel(src, dst, _act_info, window);
249 }
const Window & window() const
The maximum window the kernel can be executed on.
Definition: IKernel.cpp:28
bool enabled() const
Check if initialised.
Definition: Types.h:1528
#define ARM_COMPUTE_ERROR_ON(cond)
If the condition is true then an error message is printed and an exception thrown.
Definition: Error.h:466
SimpleTensor< float > src
Definition: DFT.cpp:155
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
#define ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(k)
Definition: Validate.h:915
ScaleKernelInfo info(interpolation_policy, default_border_mode, PixelValue(), sampling_policy, false)
#define ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(f, s)
Definition: Validate.h:201

References arm_compute::ACL_DST, arm_compute::ACL_SRC, ARM_COMPUTE_ERROR_ON, ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW, ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL, ARM_COMPUTE_UNUSED, arm_compute::test::validation::dst, ITensorPack::empty(), ActivationLayerInfo::enabled(), ITensorPack::get_const_tensor(), ITensorPack::get_tensor(), arm_compute::test::validation::info, arm_compute::test::validation::src, and IKernel::window().

◆ validate()

Status validate ( const ITensorInfo src,
const ITensorInfo dst,
const ActivationLayerInfo act_info 
)
static

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

Parameters
[in]srcSource tensor info. In case of dst tensor info = nullptr, this tensor will store the result of the activation function. Data types supported: QASYMM8/QASYMM8_SIGNED/QSYMM16/F16/F32.
[in]dstDestination tensor info. Data type supported: same as src
[in]act_infoActivation layer information.
Returns
a status

Definition at line 220 of file CpuActivationKernel.cpp.

221 {
222  ARM_COMPUTE_UNUSED(act_info);
224  ARM_COMPUTE_RETURN_ON_ERROR(validate_and_configure_window(src->clone().get(), (dst != nullptr) ? dst->clone().get() : nullptr).first);
225 
226  return Status{};
227 }
#define ARM_COMPUTE_RETURN_ON_ERROR(status)
Checks if a status contains an error and returns it.
Definition: Error.h:204
SimpleTensor< float > src
Definition: DFT.cpp:155
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
Status validate_arguments(const ITensorInfo *input, const ITensorInfo *bias, const ITensorInfo *output, const GEMMLowpOutputStageInfo *output_stage)

References ARM_COMPUTE_RETURN_ON_ERROR, ARM_COMPUTE_UNUSED, arm_compute::test::validation::dst, arm_compute::test::validation::src, and arm_compute::validate_arguments().

Referenced by CpuActivation::validate().


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