cpuLoad.H

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License
    This file is part of OpenFOAM.

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Class
    Foam::cpuLoad

Description
    Class to maintain a field of the CPU load per cell.

    The optionalCpuLoad is a base-class for cpuLoad to simplify the
    implementation of optional CPU time caching.  This is achieved via the
    optionalCpuLoad::New function which returns a optionalCpuLoad with dummy
    functions if loadBalancing is false otherwise it creates or looks-up and
    returns a cpuLoad with the given name.

    Used for loadBalancing.

SourceFiles
    cpuLoad.C

\*---------------------------------------------------------------------------*/

#ifndef cpuLoad_H
#define cpuLoad_H

#include "volFields.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

/*---------------------------------------------------------------------------*\
                       Class optionalCpuLoad Declaration
\*---------------------------------------------------------------------------*/

class optionalCpuLoad
{
    // Private Member Data

        //- Dummy optionalCpuLoad
        //  returned by optionalCpuLoad::New if loadBalancing = false
        static optionalCpuLoad optionalCpuLoad_;


public:

    // Constructors

        //- Construct from mesh, name and switch
        optionalCpuLoad()
        {}

        //- Disallow default bitwise copy construction
        optionalCpuLoad(const optionalCpuLoad&) = delete;


    // Selectors

        static optionalCpuLoad& New
        (
            const fvMesh& mesh,
            const word& name,
            const bool loadBalancing
        );


    //- Destructor
    virtual ~optionalCpuLoad()
    {}


    // Member Functions

        //- Dummy reset function
        virtual void reset()
        {}

        //- Dummy cpuTimeIncrement function
        virtual void cpuTimeIncrement(const label celli)
        {}


    // Member Operators

        //- Disallow default bitwise assignment
        void operator=(const optionalCpuLoad&) = delete;
};


/*---------------------------------------------------------------------------*\
                          Class cpuLoad Declaration
\*---------------------------------------------------------------------------*/

class cpuLoad
:
    public optionalCpuLoad,
    public volScalarField::Internal
{
    // Private Data

        cpuTime cpuTime_;


public:

    // Declare name of the class and its debug switch
    TypeName("cpuLoad");


    // Constructors

        //- Construct from mesh, name and switch
        cpuLoad
        (
            const fvMesh& mesh,
            const word& name
        );

        //- Disallow default bitwise copy construction
        cpuLoad(const cpuLoad&) = delete;


    //- Destructor
    virtual ~cpuLoad();


    // Member Functions

        //- Reset the CPU time
        virtual void reset();

        //- Cache the CPU time increment for celli
        virtual void cpuTimeIncrement(const label celli);


    // Member Operators

        //- Disallow default bitwise assignment
        void operator=(const cpuLoad&) = delete;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //