OMPThreadCountProtectorLA Class Reference

For linear algebra only. More...

Collaboration diagram for OMPThreadCountProtectorLA:

Public Member Functions
	OMPThreadCountProtectorLA ()
	~OMPThreadCountProtectorLA ()

Private Types
using	Protector = Concurrency::ThreadCountProtector< Executor::OPENMP >

Private Attributes
std::unique_ptr< Protector >	handle_

Detailed Description

For linear algebra only.

A service class to restore active avaiable threads upon destruction as the thread count recorded during construction It protects any side effects from linear algebra library calls changing the number of active avaiable threads. Known trouble maker: OpenBLAS https://github.com/xianyi/OpenBLAS/issues/3940

Definition at line 25 of file OMPThreadCountProtectorLA.hpp.

Member Typedef Documentation

Protector

using Protector = Concurrency::ThreadCountProtector<Executor::OPENMP>

private

Definition at line 27 of file OMPThreadCountProtectorLA.hpp.

Constructor & Destructor Documentation

OMPThreadCountProtectorLA()

OMPThreadCountProtectorLA

(

)

Definition at line 17 of file OMPThreadCountProtectorLA.cpp.

References OMPThreadCountProtectorLA::handle_.

  {
#if defined(HAVE_OPENBLAS)
    handle_ = std::make_unique<Protector>();
#endif
  }

~OMPThreadCountProtectorLA()

~OMPThreadCountProtectorLA ( )

default

Member Data Documentation

handle_

std::unique_ptr<Protector> handle_

private

Definition at line 28 of file OMPThreadCountProtectorLA.hpp.

Referenced by OMPThreadCountProtectorLA::OMPThreadCountProtectorLA().

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

• /home/pk7/projects/qmc/for_cron_doxygen/qmcpack/src/Platforms/CPU/OMPThreadCountProtectorLA.hpp
• /home/pk7/projects/qmc/for_cron_doxygen/qmcpack/src/Platforms/CPU/OMPThreadCountProtectorLA.cpp