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/*=========================================================================
Program: Visualization Toolkit
Module: vtkMPIEventLog.h
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.
=========================================================================*/
// .NAME vtkMPIEventLog - Class for logging and timing.
// .SECTION Description
// This class is wrapper around MPE event logging functions
// (available from Argonne National Lab/Missippi State
// University). It allows users to create events with names
// and log them. Different log file formats can be generated
// by changing MPE's configuration. Some of these formats are
// binary (for examples SLOG and CLOG) and can be analyzed with
// viewers from ANL. ALOG is particularly useful since it is
// text based and can be processed with simple scripts.
// .SECTION See Also
// vtkTimerLog vtkMPIController vtkMPICommunicator
#ifndef vtkMPIEventLog_h
#define vtkMPIEventLog_h
#include "vtkParallelMPIModule.h" // For export macro
#include "vtkObject.h"
class VTKPARALLELMPI_EXPORT vtkMPIEventLog : public vtkObject
{
public:
vtkTypeMacro(vtkMPIEventLog,vtkObject);
// Description:
// Construct a vtkMPIEventLog with the following initial state:
// Processes = 0, MaximumNumberOfProcesses = 0.
static vtkMPIEventLog* New();
// Description:
// Used to initialize the underlying mpe event.
// HAS TO BE CALLED BY ALL PROCESSES before any event
// logging is done.
// It takes a name and a description for the graphical
// representation, for example, "red:vlines3". See
// mpe documentation for details.
// Returns 0 on MPI failure (or aborts depending on
// MPI error handlers)
int SetDescription(const char* name, const char* desc);
// Description:
// These methods have to be called once on all processors
// before and after invoking any logging events.
// The name of the logfile is given by fileName.
// See mpe documentation for file formats.
static void InitializeLogging();
static void FinalizeLogging(const char* fileName);
// Description:
// Issue start and stop events for this log entry.
void StartLogging();
void StopLogging();
virtual void PrintSelf(ostream& os, vtkIndent indent);
protected:
vtkMPIEventLog();
~vtkMPIEventLog();
static int LastEventId;
int Active;
int BeginId;
int EndId;
private:
vtkMPIEventLog(const vtkMPIEventLog&); // Not implemented.
void operator=(const vtkMPIEventLog&); // Not implemented.
};
#endif
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