logicalMappings = new int[_numOfJoinWorkersTasks];
for (int i = 0; i < logicalMappings.length; i++)
logicalMappings[i] = i;
final int[] initialDims = ThetaJoinUtilities.getDimensions(_initialDim);
_mAdvisor = new TheoreticalAdvisorNew(_numOfJoinWorkersTasks, initialDims[0],
initialDims[1], _conf);
}