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Parallel/vtkMPIController.h

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/*=========================================================================
  
  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkMPIController.h,v $
  Language:  C++
  
Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

 * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
   of any contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=========================================================================*/
#ifndef __vtkMPIController_h
#define __vtkMPIController_h

#include "mpi.h"

#include "vtkMultiProcessController.h"
#include "vtkMPICommunicator.h"


class VTK_PARALLEL_EXPORT vtkMPIController : public vtkMultiProcessController
{

public:

  static vtkMPIController *New();
  vtkTypeMacro(vtkMPIController,vtkMultiProcessController);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual void Initialize(int* argc, char*** arcv);

  virtual void Finalize();

  virtual void SingleMethodExecute();
  
  virtual void MultipleMethodExecute();

  void Barrier();

  virtual void CreateOutputWindow();

  static char* ErrorString(int err);


  void SetCommunicator(vtkMPICommunicator* comm);

//BTX


  int NoBlockSend(int* data, int length, int remoteProcessId, int tag,
                  vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockSend
        (data ,length, remoteProcessId, tag, req); }
  int NoBlockSend(unsigned long* data, int length, int remoteProcessId,
                  int tag, vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockSend
        (data, length, remoteProcessId, tag, req); }
  int NoBlockSend(char* data, int length, int remoteProcessId, 
                  int tag, vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockSend
        (data, length, remoteProcessId, tag, req); }
  int NoBlockSend(float* data, int length, int remoteProcessId, 
                  int tag, vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockSend
        (data, length, remoteProcessId, tag, req); }


  int NoBlockReceive(int* data, int length, int remoteProcessId, 
                     int tag, vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockReceive
        (data, length, remoteProcessId, tag, req); }
  int NoBlockReceive(unsigned long* data, int length, 
                     int remoteProcessId, int tag, 
                     vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockReceive
        (data, length, remoteProcessId, tag, req); }
  int NoBlockReceive(char* data, int length, int remoteProcessId, 
                     int tag, vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockReceive
        (data, length, remoteProcessId, tag, req); }
  int NoBlockReceive(float* data, int length, int remoteProcessId, 
                     int tag, vtkMPICommunicator::Request& req)
    { return ((vtkMPICommunicator*)this->Communicator)->NoBlockReceive
        (data, length, remoteProcessId, tag, req); }

//ETX

protected:

  vtkMPIController();
  ~vtkMPIController();

  // Given a communicator, obtain size and rank
  // setting NumberOfProcesses and LocalProcessId
  // Should not be called if the current communicator
  // does not include this process
  int InitializeNumberOfProcesses();

  // Set the communicator to comm and call InitializeNumberOfProcesses()
  void InitializeCommunicator(vtkMPICommunicator* comm);

  // Duplicate the current communicator, creating RMICommunicator
  void InitializeRMICommunicator();

  // MPI communicator created when Initialize() called.
  // This is a copy of MPI_COMM_WORLD but uses a new
  // context, i.e. even if the tags are the same, the
  // RMI messages will not interfere with user level
  // messages.
  static vtkMPICommunicator* WorldRMICommunicator;

  // Initialize only once.
  static int Initialized;


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


#endif

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