Line data    Source code

       1             : //# PWFCleanImageSkyModel.cc: Implementation of WFCleanImageSkyModel class
       2             : //# Copyright (C) 1996,1997,1998,1999,2000,2002,2003
       3             : //# Associated Universities, Inc. Washington DC, USA.
       4             : //#
       5             : //# This library is free software; you can redistribute it and/or modify it
       6             : //# under the terms of the GNU Library General Public License as published by
       7             : //# the Free Software Foundation; either version 2 of the License, or (at your
       8             : //# option) any later version.
       9             : //#
      10             : //# This library is distributed in the hope that it will be useful, but WITHOUT
      11             : //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      12             : //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
      13             : //# License for more details.
      14             : //#
      15             : //# You should have received a copy of the GNU Library General Public License
      16             : //# along with this library; if not, write to the Free Software Foundation,
      17             : //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
      18             : //#
      19             : //# Correspondence concerning AIPS++ should be addressed as follows:
      20             : //#        Internet email: casa-feedback@nrao.edu.
      21             : //#        Postal address: AIPS++ Project Office
      22             : //#                        National Radio Astronomy Observatory
      23             : //#                        520 Edgemont Road
      24             : //#                        Charlottesville, VA 22903-2475 USA
      25             : //#
      26             : //# $Id$
      27             : 
      28             : #include <casacore/casa/Arrays/ArrayMath.h>
      29             : #include <synthesis/MeasurementComponents/PWFCleanImageSkyModel.h>
      30             : #include <casacore/images/Images/PagedImage.h>
      31             : #include <casacore/images/Images/ImageInterface.h>
      32             : #include <casacore/casa/OS/File.h>
      33             : #include <casacore/images/Images/SubImage.h>
      34             : #include <casacore/lattices/Lattices/LatticeStepper.h>
      35             : #include <casacore/lattices/Lattices/LatticeIterator.h>
      36             : #include <casacore/lattices/LEL/LatticeExpr.h>
      37             : #include <casacore/lattices/LRegions/LCBox.h>
      38             : #include <synthesis/MeasurementEquations/SkyEquation.h>
      39             : //#include <synthesis/MeasurementEquations/PSkyEquation.h>
      40             : #include <casacore/casa/Exceptions/Error.h>
      41             : #include <casacore/casa/BasicSL/String.h>
      42             : #include <casacore/casa/Utilities/Assert.h>
      43             : #include <casacore/coordinates/Coordinates/DirectionCoordinate.h>
      44             : #include <casacore/coordinates/Coordinates/CoordinateSystem.h>
      45             : #include <casacore/casa/Logging/LogMessage.h>
      46             : #include <casacore/casa/Logging/LogSink.h>
      47             : #include <casacore/casa/Logging/LogIO.h>
      48             : #include <sstream>
      49             : #include <synthesis/MeasurementComponents/MakeApproxPSFAlgorithm.h>
      50             : #include <synthesis/Parallel/Applicator.h>
      51             : 
      52             : using namespace casacore;
      53             : namespace casa { //# NAMESPACE CASA - BEGIN
      54             : 
      55             : extern Applicator applicator;
      56             : 
      57             :   // This is kind of deprecated...good as an example but should be redone
      58           0 : PWFCleanImageSkyModel::PWFCleanImageSkyModel() : WFCleanImageSkyModel() {
      59           0 :  };
      60             : 
      61           0 : PWFCleanImageSkyModel::PWFCleanImageSkyModel(const Int facets): WFCleanImageSkyModel(facets)  {
      62           0 :  };
      63             : 
      64           0 : Bool PWFCleanImageSkyModel::solve(SkyEquation& se) {
      65             :   // Solve for the sky model
      66             : 
      67           0 :   LogIO os(LogOrigin("PWFCleanImageSkyModel","solve"));
      68             :   os << "Starting parallel wide-field clean with " << nfacets_p << " facets"
      69           0 :      << " and " << this->WFCleanImageSkyModel::numberOfModels()-nfacets_p 
      70           0 :      << " outliers" << LogIO::POST;
      71             :  
      72             :   // MFCleanImageSkyModel::solve() will call the parallel
      73             :   // PSkyEquation::solveSkyModel() method, so no explicit 
      74             :   // parallelization of MFCleanImageSkyModel is required 
      75             :   // for the wide-field case. This would be required for 
      76             :   // mosaicing however.
      77           0 :     if(!MFCleanImageSkyModel::solve(se)) {
      78           0 :       os << "Wide-field clean failed" << LogIO::POST;
      79           0 :       return false;
      80             :     }
      81           0 :     return(true);
      82           0 : }; 
      83             : 
      84           0 : void PWFCleanImageSkyModel::makeApproxPSFs(SkyEquation& se){
      85             :   // This function runs on the controller process. It distributes
      86             :   // the MakeApproxPSFAlgorithm task to worker processes, and
      87             :   // receives back the PSF for each facet and the associated
      88             :   // beam fit values.
      89             : 
      90             :   // Unlock the MS for the worker as the controller process in 
      91             :   // imager will have locked it
      92           0 :   se.unlock();
      93             : 
      94           0 :   LogIO os(LogOrigin("PWFCleanImageSkyModel", "makeApproxPSFs"));
      95           0 :   MakeApproxPSFAlgorithm makepsf ;
      96             :   Int rank;
      97             :   Bool allDone, assigned; 
      98           0 :   std::map<Int, Int> psfNo;
      99           0 :   Int gotten=0;
     100             : 
     101             :   try{
     102             : 
     103           0 :     for (Int thismodel=0; thismodel<nmodels_p; thismodel++) {
     104           0 :       assigned=applicator.nextAvailProcess(makepsf, rank);
     105           0 :       while(!assigned){
     106           0 :         rank= applicator.nextProcessDone(makepsf, allDone);
     107             :         // Receive PSF and fit to PSF info
     108             :         //applicator.get(beam(psfNo(rank)));
     109           0 :         Array<Float> psfArray;
     110           0 :         applicator.get(psfArray);
     111           0 :         PSF(psfNo.at(rank)).putSlice(psfArray, IPosition(4, 0, 0, 0, 0));        
     112           0 :         ++gotten;
     113             :         /*if((*beam_p[psfNo(rank)])(0) == Float(-1.0)){
     114             :           os << "Model " << thismodel << "PSF formation failed "
     115             :              <<LogIO::POST ;
     116             :              }*/
     117             :         // Assign next avail. child processor.
     118           0 :         assigned = applicator.nextAvailProcess(makepsf, rank);
     119             :      
     120           0 :       }
     121             :       // Send the worker the data it needs to build an FTMachine,
     122             :       // make a PSF and fit the beam
     123             : 
     124           0 :       Record container_ft;
     125           0 :       String errorString;
     126           0 :       se.fTMachine().toRecord(errorString, container_ft);
     127           0 :       applicator.put(container_ft);
     128           0 :       applicator.put(se.associatedMSName());
     129             :       // The above is for the creation of FTMachine  below should be for the 
     130             :       // cImage
     131           0 :       applicator.put(this->weight(thismodel));
     132           0 :       Record image_container;
     133           0 :       cImage(thismodel).toRecord(errorString, image_container);
     134           0 :       applicator.put(image_container);
     135           0 :       psfNo.insert( std::pair<Int,Int>(rank, thismodel) );
     136             :    
     137             :       //Serial transport execution
     138           0 :       applicator.apply(makepsf);
     139           0 :     }
     140             : 
     141             :     // Wait for the outstanding processes
     142           0 :     rank= applicator.nextProcessDone(makepsf,allDone);
     143             :  
     144           0 :     while (!allDone) {
     145             :       //applicator.get(beam(psfNo(rank)));
     146           0 :       Array<Float> psfArray;
     147           0 :       applicator.get(psfArray);
     148           0 :       PSF(psfNo.at(rank)).putSlice(psfArray, IPosition(4, 0, 0, 0, 0));   
     149             :       /*if((*beam_p[psfNo(rank)])(0)== Float(-1.0)){
     150             :         os << "Model "<< psfNo(rank) <<"Beam forming failed "<< LogIO::POST ;
     151             :         }*/
     152           0 :       rank=applicator.nextProcessDone(makepsf,allDone);
     153           0 :     }
     154             : 
     155           0 :   }catch (AipsError x){
     156             : 
     157           0 :     cout << x.getMesg() << endl;
     158           0 :   }  ;
     159             : 
     160           0 :   se.lock();
     161           0 : }
     162             : 
     163             : 
     164             : } //# NAMESPACE CASA - END
     165             :