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This is a ping pong test for our application-specific data types. More...

#include <PingPongTest.h>

Inheritance diagram for peano4::parallel::tests::PingPongTest:

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Public Member Functions
	PingPongTest ()
virtual void	run () override
	Build up suite of test routines.
Public Member Functions inherited from tarch::tests::TestCase
	TestCase (const std::string &testCaseName)
	Constructor.
virtual	~TestCase ()
	Destructor.
int	getNumberOfErrors () const
std::string	getTestCaseName () const

Private Member Functions
void	testBuiltInType ()
void	testDaStGenTypeIntegerMessage ()
	It is really important that we test - for the DaStGen-generated data types - both the built-in operation and the usage with MPI_Send and MPI_Recv.
void	testDaStGenTypeStartTraversalMessage ()
void	testDaStGenArray ()
void	testDaStGenArrayTreeManagementMessage ()
void	testMultithreadedPingPongWithBlockingReceives ()
void	testMultithreadedPingPongWithBlockingSends ()
void	testMultithreadedPingPongWithBlockingSendsAndReceives ()
void	testMultithreadedPingPongWithNonblockingReceives ()
void	testMultithreadedPingPongWithNonblockingSends ()
void	testMultithreadedPingPongWithNonblockingSendsAndReceives ()

Static Private Attributes
static tarch::logging::Log	_log
	Logging device.

Additional Inherited Members
Protected Member Functions inherited from tarch::tests::TestCase
	TestCase ()=delete
Protected Attributes inherited from tarch::tests::TestCase
const std::string	_testCaseName
	Name of the test case.
int	_errors
	Error counter.
bool	_error
	Indicate within macro if one specific validation failed.

Detailed Description

This is a ping pong test for our application-specific data types.

Definition at line 21 of file PingPongTest.h.

Constructor & Destructor Documentation

◆ PingPongTest()

peano4::parallel::tests::PingPongTest::PingPongTest ( )

Definition at line 24 of file PingPongTest.cpp.

References tarch::tests::TestCase::TestCase().

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Member Function Documentation

◆ run()

void peano4::parallel::tests::PingPongTest::run ( )

overridevirtual

Build up suite of test routines.

We protect the multithreaded calls with a call with a comparison of tarch::mpi::Rank::getInstance().getProvidedThreadLevelSupport() to MPI_THREAD_MULTIPLE. In principle, we know that Peano cannot work properly without MPI's multithreaded support. However, even if the MPI implementation supports multithreading, tools such as MUST (http://www.itc.rwth-aachen.de/MUST) will artifically lower the thread level support for correctness check and then report a deadlock here (wrongly). To avoid this, we remove the unit tests, as I really wanna use the thread-checkers with our unit tests.

Implements tarch::tests::TestCase.

Definition at line 393 of file PingPongTest.cpp.

References tarch::mpi::Rank::getInstance(), logTraceIn, logTraceOut, testBuiltInType(), testDaStGenArray(), testDaStGenArrayTreeManagementMessage(), testDaStGenTypeIntegerMessage(), testDaStGenTypeStartTraversalMessage(), testMethod, testMultithreadedPingPongWithBlockingReceives(), testMultithreadedPingPongWithBlockingSends(), testMultithreadedPingPongWithBlockingSendsAndReceives(), testMultithreadedPingPongWithNonblockingReceives(), testMultithreadedPingPongWithNonblockingSends(), and testMultithreadedPingPongWithNonblockingSendsAndReceives().

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◆ testBuiltInType()

void peano4::parallel::tests::PingPongTest::testBuiltInType ( )

private

Definition at line 29 of file PingPongTest.cpp.

References tarch::mpi::Rank::getInstance(), and validateEquals.

Referenced by run().

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◆ testDaStGenArray()

void peano4::parallel::tests::PingPongTest::testDaStGenArray ( )

private

Definition at line 329 of file PingPongTest.cpp.

References peano4::parallel::StartTraversalMessage::getGlobalCommunciationDatatype(), tarch::mpi::Rank::getInstance(), peano4::parallel::StartTraversalMessage::setStepIdentifier(), toString(), and validateEqualsWithParams8.

Referenced by run().

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◆ testDaStGenArrayTreeManagementMessage()

void peano4::parallel::tests::PingPongTest::testDaStGenArrayTreeManagementMessage ( )

private

Definition at line 376 of file PingPongTest.cpp.

References peano4::parallel::TreeManagementMessage::Acknowledgement, peano4::parallel::TreeManagementMessage::getAction(), tarch::mpi::Rank::getInstance(), peano4::parallel::TreeManagementMessage::receive(), peano4::parallel::TreeManagementMessage::send(), peano4::parallel::TreeManagementMessage::setAction(), peano4::parallel::TreeManagementMessage::toString(), and validateWithParams1.

Referenced by run().

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◆ testDaStGenTypeIntegerMessage()

void peano4::parallel::tests::PingPongTest::testDaStGenTypeIntegerMessage ( )

private

It is really important that we test - for the DaStGen-generated data types - both the built-in operation and the usage with MPI_Send and MPI_Recv.

I had the case that the generated datatypes had a vtable, i.e. an addition four bytes. These bytes are then added to the object (at the front), but I had situations where they seem not to be incorporated into the this pointer. In any case, programmmers should not try to exchange data types with vtables, but if they do then we'll see bugs when we try to exchange the generated MPI_Send with a send() call on the DaStGen object.

Definition at line 299 of file PingPongTest.cpp.

References tarch::mpi::IntegerMessage::getGlobalCommunciationDatatype(), tarch::mpi::Rank::getInstance(), tarch::mpi::IntegerMessage::getValue(), tarch::mpi::IntegerMessage::receive(), tarch::mpi::IntegerMessage::send(), tarch::mpi::IntegerMessage::setValue(), tarch::mpi::IntegerMessage::toString(), and validateEqualsWithParams2.

Referenced by run().

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