PROOF-Lite not working

ROOT
1

I have a very frustrating problem using PROOF-Lite in compiled code.
However, it seems to be reproducible using CINT too, so I created a example. If I run the following code:

#include "TChain.h"
#include "TProof.h"
#include "TCollection.h"
#include "include/rfacQuantumNumberLister.hh"
#include "include/rfacQuantumNumberContainer.hh"
#include <iostream>
using namespace std;

void prooftest()
{
   TChain * myChain = new TChain("T");
   myChain->Add("output_small.root");
   TProof::Open("");
   gProof->Exec("gSystem->Load(\"/home/rikard/fac/Work/hbar_cfac_rikard/DataTool/Dictionary.so\")"); 
   //myChain->SetProof();
  rfacQuantumNumberLister * myQuantumNumberLister = new rfacQuantumNumberLister();
  myQuantumNumberLister->SetInputList(new TList());
  myQuantumNumberLister->GetInputList()->Add(new TObjString("SFACbranch"));
  myChain->Process(myQuantumNumberLister);

  rfacQuantumNumberContainer myQMContainer;
  
  TIter centralQ(myQuantumNumberLister->GetOutputList());

  while(TCollection * cobj = dynamic_cast< TCollection* > (centralQ()))
    {
      cobj->Print();
      myQMContainer.Merge(cobj);
    }
  
  cout << "Found :" << myQMContainer.size() << endl;
  delete myQuantumNumberLister;
}

everything works as it should; the TSelector object is invoked and the output list contains the expected output object.
However, if I remove the comment from the line

//myChain->SetProof();

to actually use PROOF-Lite in the processing, suddenly the TSelector is not invoked at all, and the output list only consists of an object

Collection name='MissingFiles', class='TList', size=1
 file:///home/rikard/fac/Work/hbar_cfac_rikard/DataTool/output_small.root /T|TTree|125 md5-undef

So I was wondering how I should do to make this work? I have tried looking into the log files.
There seems to be an error on Master:

Error in <TTree::SetBranchAddress>: unknown branch -> FeedbackList

However I don’t know what this means, or how I should correct it?

2

Hi,

To use processing-by-object you need to make the workers aware of the selector code.
Try adding

gProof->Load("rfacQuantumNumberContainer.cxx+");
gProof->Load("rfacQuantumNumberLister.cxx+");

Given that it looks like you need also an additional library, it may be worth to use a PAR file where you put all what you need: root.cern.ch/drupal/content/work … -par-files .

G. Ganis