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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include <set>
#include "itkMultiThreaderBase.h"
#include "itkPlatformMultiThreader.h"
#include "itkPoolMultiThreader.h"
#ifdef ITK_USE_TBB
# include "itkTBBMultiThreader.h"
#endif
#include "itkTestingMacros.h"
bool
VerifyRange(int value, int min, int max, const char * msg)
{
if (value < min)
{
std::cerr << msg << std::endl;
return false;
}
if (value > max)
{
std::cerr << msg << std::endl;
return false;
}
return true;
}
bool
SetAndVerifyGlobalMaximumNumberOfThreads(int value)
{
itk::MultiThreaderBase::SetGlobalMaximumNumberOfThreads(value);
return VerifyRange(itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads(),
1,
itk::ITK_MAX_THREADS,
"Range error in MaximumNumberOfThreads");
}
bool
SetAndVerifyGlobalDefaultNumberOfThreads(int value)
{
itk::MultiThreaderBase::SetGlobalDefaultNumberOfThreads(value);
return VerifyRange(itk::MultiThreaderBase::GetGlobalDefaultNumberOfThreads(),
1,
itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads(),
"Range error in DefaultNumberOfThreads");
}
bool
SetAndVerifyMaximumNumberOfThreads(int value, itk::MultiThreaderBase * threader)
{
threader->SetMaximumNumberOfThreads(value);
return VerifyRange(threader->GetMaximumNumberOfThreads(),
1,
itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads(),
"Range error in MaximumNumberOfThreads");
}
bool
SetAndVerify(int number)
{
bool result = true;
result &= SetAndVerifyGlobalMaximumNumberOfThreads(number);
result &= SetAndVerifyGlobalDefaultNumberOfThreads(number);
itk::MultiThreaderBase::Pointer threader = itk::MultiThreaderBase::New();
// PoolMultiThreader can only increase number of threads
// so make sure to increase this before testing thread count
itk::MultiThreaderBase::SetGlobalMaximumNumberOfThreads(itk::ITK_MAX_THREADS);
result &= SetAndVerifyMaximumNumberOfThreads(number, threader);
// number of Work Units is not max-limited by TBBMultiThreader
return result;
}
#define TEST_SINGLE_CLASS(ClassName) \
{ \
itk::ClassName::Pointer threader = itk::ClassName::New(); \
if (threader.IsNull()) \
{ \
result = false; \
} \
\
ITK_EXERCISE_BASIC_OBJECT_METHODS(threader, ClassName, MultiThreaderBase); \
} \
ITK_MACROEND_NOOP_STATEMENT
int
itkMultiThreaderBaseTest(int argc, char * argv[])
{
bool result = true;
itk::MultiThreaderBase::SetGlobalMaximumNumberOfThreads(1);
result &= itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads() == 1;
result &= itk::MultiThreaderBase::GetGlobalDefaultNumberOfThreads() == 1;
// Choose a number of threads.
int numberOfThreads = 10;
if (argc > 1)
{
const int nt = std::stoi(argv[1]);
if (nt > 1)
{
numberOfThreads = nt;
}
}
TEST_SINGLE_CLASS(PlatformMultiThreader);
TEST_SINGLE_CLASS(PoolMultiThreader);
#ifdef ITK_USE_TBB
TEST_SINGLE_CLASS(TBBMultiThreader);
#endif
itk::MultiThreaderBase::SetGlobalMaximumNumberOfThreads(2);
result &= VerifyRange(
itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads(), 1, 2, "Range error in MaximumNumberOfThreads");
itk::MultiThreaderBase::SetGlobalDefaultNumberOfThreads(4);
result &= VerifyRange(
itk::MultiThreaderBase::GetGlobalDefaultNumberOfThreads(), 1, 2, "Range error in DefaultNumberOfThreads");
itk::MultiThreaderBase::SetGlobalDefaultNumberOfThreads(numberOfThreads);
result &= SetAndVerify(-1);
result &= SetAndVerify(0);
result &= SetAndVerify(1);
result &= SetAndVerify(2);
result &= SetAndVerify(itk::ITK_MAX_THREADS);
result &= SetAndVerify(itk::ITK_MAX_THREADS - 1);
result &= SetAndVerify(itk::ITK_MAX_THREADS + 1);
result &= SetAndVerify(itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads());
result &= SetAndVerify(itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads() - 1);
result &= SetAndVerify(itk::MultiThreaderBase::GetGlobalMaximumNumberOfThreads() + 1);
// Test streaming enumeration for MultiThreaderBaseEnums::Threader elements
const std::set<itk::MultiThreaderBaseEnums::Threader> allThreader{
itk::MultiThreaderBaseEnums::Threader::Platform,
// itk::MultiThreaderBaseEnums::Threader::First,
itk::MultiThreaderBaseEnums::Threader::Pool,
itk::MultiThreaderBaseEnums::Threader::TBB,
// itk::MultiThreaderBaseEnums::Threader::Last,
itk::MultiThreaderBaseEnums::Threader::Unknown
};
for (const auto & ee : allThreader)
{
std::cout << "STREAMED ENUM VALUE MultiThreaderBaseEnums::Threader: " << ee << std::endl;
}
// Test streaming enumeration for MultiThreaderBaseEnums::ThreadExitCode elements
const std::set<itk::MultiThreaderBaseEnums::ThreadExitCode> allThreadExitCode{
itk::MultiThreaderBaseEnums::ThreadExitCode::SUCCESS,
itk::MultiThreaderBaseEnums::ThreadExitCode::ITK_EXCEPTION,
itk::MultiThreaderBaseEnums::ThreadExitCode::ITK_PROCESS_ABORTED_EXCEPTION,
itk::MultiThreaderBaseEnums::ThreadExitCode::STD_EXCEPTION,
itk::MultiThreaderBaseEnums::ThreadExitCode::UNKNOWN
};
for (const auto & ee : allThreadExitCode)
{
std::cout << "STREAMED ENUM VALUE MultiThreaderBaseEnums::ThreadExitCode: " << ee << std::endl;
}
if (!result)
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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