& cg2dpcOffDFac, cg3dTargetResidual,
_RL cg3dTargetResidual
cg3dTolerance_sq = cg3dTargetResidual*cg3dTargetResidual
& cg3dMaxIters, cg3dChkResFreq, cg3dTargetResidual,
cg3dTargetResidual = 1. _d -7