nbStrips = 1
IF ( S_edge ) nbStrips = 2
jMinUpd(nbStrips) = sNy+1
jMaxUpd(nbStrips) = sNy+OLy
DO ns=1,nbStrips
INTEGER ns, nbStrips
IF ( W_edge ) nbStrips = 2
iMinUpd(nbStrips) = sNx+1
iMaxUpd(nbStrips) = sNx+OLx