[linch]

Hi Foamers,

it's common knowledge, that whith .solve().initialResidual() one can get the normalized initial residual of the linear system of eqs., before it is being solved iteratively.

Do you know, how can I get the initial residuals and the number of iterations were made to reach the final residuals (and probably also the final residuals)?

Best regards,
Ilya

[linch]

P.S. I mean, lduMatrix has public functions initialResidual() finalResidulal() and noIterations(), but how to get them all together at ones, without executing .solve() three times?

[linch]

Answering my own question:

    scalar eqnInitialResidual = 1;
    label  eqnNoIterations = 0;
    lduMatrix::solverPerformance solverPerf;

    solverPerf = Eqn.solve();
    eqnNoIterations = solverPerf.nIterations();
    eqnInitialResidual = solverPerf.initialResidual();