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Hi Patrick,

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<div class="">It worked, thank you!</div>

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Cheers from Lugano,</div>

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Pietro </div>

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<div class="">Il giorno 19-feb-2019, alle ore 16:19, Patrick Sanan <<a href="mailto:patrick.sanan@gmail.com" class="">patrick.sanan@gmail.com</a>> ha scritto:</div>

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<div dir="ltr" class="">Will it work for you to use </div>

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<div dir="ltr" class=""><a href="https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCMGGetSmoother.html" class="">https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCMGGetSmoother.html</a></div>

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<div dir="ltr" class="">to pull out the KSP for the level you're interested in (Note link to PCMGGetSmootherDown() if you want to control up and down smoothers separately) and then use </div>

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<div dir="ltr" class=""><a href="https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/KSP/KSPSetTolerances.html" class="">https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/KSP/KSPSetTolerances.html</a><br class="">

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<div class="">to set the maximum iterations?</div>

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<div dir="ltr" class="gmail_attr">Am Di., 19. Feb. 2019 um 16:07 Uhr schrieb Pietro Benedusi via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" class="">petsc-users@mcs.anl.gov</a>>:<br class="">

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<div style="word-wrap:break-word" class="">Dear PETSc team,

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<div class="">Is there a way to set the number of smoothing steps done inside a specific multigrid level l ?</div>

<div class="">Something like:</div>

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<pre style="font-variant-ligatures:normal" class=""><a href="https://www.mcs.anl.gov/petsc/petsc-3.8/docs/manualpages/PCMG/PCMGSetNumberSmoothDown.html#PCMGSetNumberSmoothDown" target="_blank" class="">PCMGSetNumberSmoothDown</a>(<a href="https://www.mcs.anl.gov/petsc/petsc-3.8/docs/manualpages/PC/PC.html#PC" target="_blank" class="">PC</a> pc,<a href="https://www.mcs.anl.gov/petsc/petsc-3.8/docs/manualpages/Sys/PetscInt.html#PetscInt" target="_blank" class="">PetscInt</a> n, <a href="https://www.mcs.anl.gov/petsc/petsc-3.8/docs/manualpages/Sys/PetscInt.html#PetscInt" target="_blank" class="">PetscInt</a> l)</pre>

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<div class="">In this way I could, for example set 3 smoothing steps on level 1 and 7 smoothing steps on level 2.</div>

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<div class="">Thank you!</div>

<div class="">Pietro </div>

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