Initially, a distribution graph is constructed including the above mentioned nodes spanned out by logical links assigned cost values indicating {HEAD ~ the cost} of transferring {TAIL ~ data} between the associated adjacent nodes 
of transferring
Initially , a distribution graph is constructed including the above mentioned nodes spanned out by logical links assigned cost values indicating { HEAD ~ the cost } of transferring { TAIL ~ data } between the associated adjacent nodes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH