def callBreakup(obj, cellSubset, bufferTime, bufferDist, distanceRatio, totCells):
	"""Calls breakupCells() for multiprocessing
	
	Parameters
	----------
	obj : btengine
		The current btengine object (self)
	Everything else same as btengine.breakupCells()
	
	"""
	
	return obj.breakupCells(cellSubset, bufferTime, bufferDist, distanceRatio, totCells)