vtkMPIGroup.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkMPIGroup.h,v $

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef __vtkMPIGroup_h
#define __vtkMPIGroup_h

#include "vtkObject.h"

class vtkMPIController;
class vtkMPICommunicator;

class VTK_PARALLEL_EXPORT vtkMPIGroup : public vtkObject
{

public:

  vtkTypeRevisionMacro( vtkMPIGroup,vtkObject);
  
  static vtkMPIGroup* New();
  
  virtual void PrintSelf(ostream& os, vtkIndent indent);

  void Initialize(vtkMPIController* controller);

  int AddProcessId(int processId);

  void RemoveProcessId(int processId);

  int FindProcessId(int processId);

  int GetProcessId(int pos);

  void CopyProcessIdsFrom(vtkMPIGroup* group);


  int GetNumberOfProcessIds()
    {
      return this->CurrentPosition;
    }

//BTX

  friend class vtkMPICommunicator;

//ETX

protected:

  void CopyFrom(vtkMPIGroup* group);

  void Initialize(int numProcIds);

  int* ProcessIds;
  int MaximumNumberOfProcessIds;
  int Initialized;
  int CurrentPosition;

  vtkMPIGroup();
  ~vtkMPIGroup();

private:
  vtkMPIGroup(const vtkMPIGroup&);  // Not implemented.
  void operator=(const vtkMPIGroup&);  // Not implemented.
};

#endif

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