Compute Library
 22.05
CpuActivationKernel Class Reference

Interface for the activation kernel. More...

#include <CpuActivationKernel.h>

Collaboration diagram for CpuActivationKernel:
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Data Structures

struct  ActivationKernel
 

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...
 
size_t get_mws (const CPUInfo &platform, size_t thread_count) const override
 Return minimum workload size of the relevant kernel. 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. More...
 
static const std::vector< ActivationKernel > & get_available_kernels ()
 
- Static Public Member Functions inherited from ICpuKernel< CpuActivationKernel >
static const auto * get_implementation (const SelectorType &selector, KernelSelectionType selection_type=KernelSelectionType::Supported)
 Micro-kernel selector. More...
 

Additional Inherited Members

- Static Public Attributes inherited from ICPPKernel
static constexpr size_t default_mws = 1
 

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 174 of file CpuActivationKernel.cpp.

References ARM_COMPUTE_ERROR_ON_NULLPTR, ARM_COMPUTE_ERROR_THROW_ON, ITensorInfo::data_type(), CPUInfo::get(), ICpuKernel< CpuActivationKernel >::get_implementation(), CPUInfo::get_isa(), arm_compute::cpu::kernels::validate_and_configure_window(), and arm_compute::cpu::kernels::validate_arguments().

175 {
178 
179  const auto uk = CpuActivationKernel::get_implementation(DataTypeISASelectorData{ src->data_type(), CPUInfo::get().get_isa() });
180 
182 
183  _act_info = activation_info;
184  _run_method = uk->ukernel;
185  _name = std::string("CpuActivationKernel").append("/").append(uk->name);
186 
187  // Configure kernel window
188  auto win_config = validate_and_configure_window(src, dst);
189  ARM_COMPUTE_ERROR_THROW_ON(win_config.first);
190  ICPPKernel::configure(win_config.second);
191 }
static const auto * get_implementation(const SelectorType &selector, KernelSelectionType selection_type=KernelSelectionType::Supported)
Micro-kernel selector.
Definition: ICpuKernel.h:53
#define ARM_COMPUTE_ERROR_THROW_ON(status)
Definition: Error.h:455
Status validate_arguments(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *dst, const PadStrideInfo &conv_info)
SimpleTensor< float > src
Definition: DFT.cpp:155
std::pair< Status, Window > validate_and_configure_window(ITensorInfo *src, ITensorInfo *dst)
#define ARM_COMPUTE_ERROR_ON_NULLPTR(...)
Definition: Validate.h:157
static CPUInfo & get()
Access the KernelLibrary singleton.
Definition: CPPTypes.cpp:40
cpuinfo::CpuIsaInfo get_isa() const
Gets the current cpu&#39;s ISA information.
Definition: CPPTypes.cpp:114

◆ get_available_kernels()

const std::vector< CpuActivationKernel::ActivationKernel > & get_available_kernels ( )
static

Definition at line 236 of file CpuActivationKernel.cpp.

237 {
238  return available_kernels;
239 }

◆ get_mws()

size_t get_mws ( const CPUInfo platform,
size_t  thread_count 
) const
overridevirtual

Return minimum workload size of the relevant kernel.

Parameters
[in]platformThe CPU platform used to create the context.
[in]thread_countNumber of threads in the execution.
Returns
[out] small_network_mws Minimum workload size for requsted configuration.

Reimplemented from ICPPKernel.

Definition at line 202 of file CpuActivationKernel.cpp.

References ARM_COMPUTE_UNUSED, and ICPPKernel::default_mws.

203 {
204  ARM_COMPUTE_UNUSED(thread_count);
205  ARM_COMPUTE_UNUSED(platform);
206 
208 }
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
static constexpr size_t default_mws
Definition: ICPPKernel.h:41

◆ name()

const char * name ( ) const
overridevirtual

Name of the kernel.

Returns
Kernel name

Implements ICPPKernel.

Definition at line 231 of file CpuActivationKernel.cpp.

232 {
233  return _name.c_str();
234 }

◆ 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 210 of file CpuActivationKernel.cpp.

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, ITensorPack::empty(), ActivationLayerInfo::enabled(), ITensorPack::get_const_tensor(), ITensorPack::get_tensor(), and IKernel::window().

211 {
212  // Early exit on disabled activation
213  if(!_act_info.enabled())
214  {
215  return;
216  }
217 
221 
222  ARM_COMPUTE_ERROR_ON(tensors.empty());
223  ARM_COMPUTE_ERROR_ON(_run_method == nullptr);
224 
225  const ITensor *src = tensors.get_const_tensor(TensorType::ACL_SRC);
226  ITensor *dst = tensors.get_tensor(TensorType::ACL_DST);
227 
228  _run_method(src, dst, _act_info, window);
229 }
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:1675
#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

◆ 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.

Similar to CpuActivationKernel::configure()

Returns
a status

Definition at line 193 of file CpuActivationKernel.cpp.

References ARM_COMPUTE_RETURN_ON_ERROR, ARM_COMPUTE_UNUSED, ICloneable< T >::clone(), arm_compute::cpu::kernels::validate_and_configure_window(), and arm_compute::cpu::kernels::validate_arguments().

Referenced by CpuActivation::validate().

194 {
195  ARM_COMPUTE_UNUSED(act_info);
197  ARM_COMPUTE_RETURN_ON_ERROR(validate_and_configure_window(src->clone().get(), (dst != nullptr) ? dst->clone().get() : nullptr).first);
198 
199  return Status{};
200 }
#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 *src, const ITensorInfo *weights, const ITensorInfo *dst, const PadStrideInfo &conv_info)
SimpleTensor< float > src
Definition: DFT.cpp:155
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
std::pair< Status, Window > validate_and_configure_window(ITensorInfo *src, ITensorInfo *dst)

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