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vtkMPIEventLog.h
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vtkMPIEventLog.h
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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.
=========================================================================*/
/**
* @class vtkMPIEventLog
* @brief Class for logging and timing.
*
*
* 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.
*
* @sa
* 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);
/**
* Construct a vtkMPIEventLog with the following initial state:
* Processes = 0, MaximumNumberOfProcesses = 0.
*/
static vtkMPIEventLog* New();
/**
* 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);
//@{
/**
* 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);
//@}
//@{
/**
* Issue start and stop events for this log entry.
*/
void StartLogging();
void StopLogging();
//@}
void PrintSelf(ostream& os, vtkIndent indent) override;
protected:
vtkMPIEventLog();
~vtkMPIEventLog();
static int LastEventId;
int Active;
int BeginId;
int EndId;
private:
vtkMPIEventLog(const vtkMPIEventLog&) = delete;
void operator=(const vtkMPIEventLog&) = delete;
};
#endif