Line data    Source code

       1             : //# ResidualAlgorithm.cc:class providing for parallelized residualimagemaking
       2             : //# Copyright (C) 1996,1997,1998,1999,2000,2001,2002
       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/Utilities/Assert.h>
      29             : #include <msvis/MSVis/VisSet.h>
      30             : #include <msvis/MSVis/VisSetUtil.h>
      31             : #include <msvis/MSVis/VisibilityIterator.h>
      32             : #include <msvis/MSVis/VisBuffer.h>
      33             : #include <casacore/casa/Arrays/ArrayMath.h>
      34             : #include <casacore/casa/Arrays/MatrixMath.h>
      35             : #include <casacore/casa/Logging/LogMessage.h>
      36             : #include <casacore/casa/Logging/LogIO.h>
      37             : #include <casacore/casa/Logging/LogSink.h>
      38             : #include <casacore/ms/MeasurementSets/MeasurementSet.h>
      39             : #include <casacore/ms/MeasurementSets/MSColumns.h>
      40             : #include <synthesis/MeasurementComponents/ResidualAlgorithm.h>
      41             : #include <casacore/casa/OS/Time.h>
      42             : #include <casacore/images/Images/ImageInterface.h>
      43             : #include <casacore/images/Images/PagedImage.h>
      44             : #include <casacore/images/Images/TempImage.h>
      45             : #include <synthesis/TransformMachines/StokesImageUtil.h>
      46             : #include <casacore/lattices/LRegions/LCBox.h>
      47             : #include <casacore/lattices/Lattices/SubLattice.h>   
      48             : #include <casacore/lattices/Lattices/TiledShape.h>  
      49             : #include <casacore/casa/System/ProgressMeter.h>
      50             : #include <synthesis/Parallel/Applicator.h>
      51             : #include <unistd.h>
      52             : #include <casacore/casa/Containers/Record.h>   
      53             : 
      54             : using namespace casacore;
      55             : namespace casa { //# NAMESPACE CASA - BEGIN
      56             : 
      57             : extern Applicator applicator;
      58             : 
      59             : 
      60           0 : ResidualAlgorithm::ResidualAlgorithm() : myName_p("ResidualAlgorithm")
      61             : {
      62             : 
      63           0 : };
      64             : 
      65           0 : ResidualAlgorithm::~ResidualAlgorithm()
      66             : {
      67             : 
      68           0 : };
      69             : 
      70           0 : void ResidualAlgorithm::get(){
      71             : 
      72             :   // Receive data from the controller process
      73           0 :   applicator.get(model_p);
      74           0 :   applicator.get(msName_p);
      75           0 :   applicator.get(incremental_p); 
      76             : 
      77             :   // Receiving image parameters
      78           0 :   Record container_image;
      79           0 :   String errorString;
      80           0 :   applicator.get(container_image);
      81           0 :   cImage_p= new TempImage<Complex>();
      82           0 :   cImage_p->fromRecord(errorString, container_image);
      83             : 
      84             :   // Receiving and making FT machine 
      85           0 :   Record container_ft;
      86           0 :   applicator.get(container_ft);
      87           0 :   ft_p=new GridFT(container_ft);
      88           0 :   Matrix<Float> weight_temp;
      89           0 :   applicator.get(weight_temp);
      90             : 
      91           0 :   if (weight_p) delete weight_p;
      92           0 :   weight_p = new Matrix<Float> (weight_temp);
      93             : 
      94           0 : };
      95             : 
      96           0 : void ResidualAlgorithm::put(){
      97             : 
      98             :   // Send data back to the controller process
      99           0 :   applicator.put(model_p);
     100             : 
     101             :   // Sending image parameters
     102           0 :   Record container_image;
     103           0 :   String errorString;
     104           0 :   cImage_p->toRecord(errorString, container_image);
     105           0 :   applicator.put(container_image);
     106           0 :   Bool withImage=false;
     107             : 
     108             :   // Sending FT machine parameters
     109           0 :   Record container_ft;
     110           0 :   ft_p->toRecord(errorString, container_ft, withImage);
     111           0 :   applicator.put(container_ft);
     112           0 :   applicator.put(*weight_p);
     113             : 
     114           0 :   delete ft_p;
     115           0 :   delete cImage_p;
     116           0 :   weight_p->resize();
     117             : 
     118           0 : };
     119             : 
     120           0 : String& ResidualAlgorithm::name(){
     121             : 
     122             :   // Return the algorithm name
     123           0 :   return myName_p;
     124             : 
     125             : };
     126             : 
     127           0 : void ResidualAlgorithm::task(){
     128             : 
     129             :   // Form the parallel residual image
     130             : 
     131           0 :   ms_p= new MeasurementSet(msName_p, TableLock(TableLock::UserNoReadLocking)
     132           0 :                            , Table::Update);
     133             :         
     134           0 :   Block<Int> sort(0);
     135           0 :   Matrix<Int> noselection;
     136           0 :   noselection=MeasurementSet::ANTENNA1;
     137           0 :   Double interval=0; 
     138             : 
     139             :   // Construct the VisibilityIterator
     140           0 :   VisSet vs(*ms_p, sort, noselection, interval);
     141           0 :   ROVisIter& vi(vs.iter());
     142             : 
     143             : 
     144             : 
     145             :   // Row blocking defines the memory used
     146           0 :   vi.setRowBlocking(100000);
     147           0 :   VisBuffer vb(vi);
     148             : 
     149             :   // Change the model polarization frame
     150           0 :   if(vb.polFrame()==MSIter::Linear) {
     151           0 :     StokesImageUtil::changeCStokesRep(*cImage_p,
     152             :                                       StokesImageUtil::LINEAR);
     153             :   }
     154             :   else {
     155           0 :     StokesImageUtil::changeCStokesRep(*cImage_p,
     156             :                                       StokesImageUtil::CIRCULAR);
     157             :   }
     158             : 
     159           0 :   vi.originChunks();
     160           0 :   vi.origin();
     161           0 :   initializePut(vb, model_p);
     162             :  
     163             :   // Iterate through the visibility data
     164           0 :   for (vi.originChunks();vi.moreChunks();vi.nextChunk()) {
     165           0 :     for (vi.origin(); vi.more(); vi++) {
     166             :           
     167           0 :       vb.modelVisCube()-=vb.correctedVisCube();
     168           0 :       vb.setVisCube(vb.modelVisCube());
     169           0 :       putResidualVis(vb, model_p);
     170             :         
     171             :     }
     172             :   }
     173             : 
     174           0 :   ft_p->finalizeToSky();
     175             :       
     176           0 :   Matrix<Float> delta;
     177           0 :   cImage_p->copyData(ft_p->getImage(delta, false));
     178           0 :   (*weight_p)+=delta;
     179             : 
     180           0 :   ms_p->unlock();
     181           0 :   delete ms_p;
     182           0 : };
     183             : 
     184           0 : void ResidualAlgorithm::initializePut(const VisBuffer& vb, Int /*model*/) {
     185           0 :   ft_p->initializeToSky(*cImage_p, *weight_p,vb);
     186             :   // Need to add support for varying SkyJones
     187           0 : }
     188             : 
     189             : 
     190           0 : void ResidualAlgorithm::putResidualVis(VisBuffer& vb, Int /*model*/) {
     191           0 :     Bool dopsf=false;
     192             :     // Need to add support for varying SkyJones
     193           0 :     ft_p->put(vb, -1, dopsf);
     194           0 : }
     195             : 
     196             : 
     197             : 
     198             : 
     199             : 
     200             : } //# NAMESPACE CASA - END
     201             :