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picard iterations for both codes #55

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@mbkuhn mbkuhn commented Aug 8, 2023

just for comparison now

for (int n = 0; n < add_pic_its; ++n) {
for (auto& ss : m_solvers) {
exchange_solution();
ss->call_additional_picard_iteration(n);
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Is n getting used anywhere? I would still keep n user defined until some guideline has been established on how many picards are sufficient to drop the nonlinear residual norm by 2 orders of magnitude on the nalu-wind side. At the very least, would keep this number at 2, not 1.

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