[Tommy Chen]

Hi Guys

I noticed that preconditioning has been used in SU2 linear solver, with setting as below:

%
% Preconditioner of the Krylov linear solver (JACOBI, LINELET, LU_SGS)
LINEAR_SOLVER_PREC= LU_SGS
%

So how does SU2 form the preconditioning matrix ?

[economon]

Hi Tommy,

Please check out the routine CSysMatrix::ComputeLU_SGSPreconditioner in the file matrix_structure.cpp.

Hope this helps,
T