ToolsProcessingNumericsSolversConjugate gradientOptionsDIC preconditionerOn this pageDIC preconditionerProperties Simplified <B>D</B>iagonal-based <B>I</B>ncomplete <B>C</B>holesky preconditioner (symmetric equivalent of DILU). Symmetric matrices Parallel inconsistent Usage preconditioner DIC; Further information Source code: DICPreconditioner API: Foam::DICPreconditioner