<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Apr 24, 2014, at 1:23 AM, Jed Brown <<a href="mailto:jed@jedbrown.org">jed@jedbrown.org</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Veltz Romain <<a href="mailto:romain.veltz@inria.fr">romain.veltz@inria.fr</a>> writes:<br><br><blockquote type="cite">Dear pets users,<br><br>I have been trying to set some sundials options from petsc4py but I am<br>unsuccessful. I hope somebody will have a good pointer. For example I<br>can pass -ts_sundials_type bdf to python in the command line.<br><br>I would like to call TSSundialsSetTolerance to set the<br>tolerance. Hence I need to pass some options in the command line (I<br>don't know if this is possible for this particular function) or call<br>TSSundialsSetTolerance(…) from petsc4py. So far, I am clueless.<br></blockquote><br>These functions are not yet implemented in petsc4py. You could clone<br>the repository (<a href="https://bitbucket.org/petsc/petsc4py">https://bitbucket.org/petsc/petsc4py</a>) and add the<br>interfaces you need. It should be straightforward based on similar<br>interfaces that already exist. We can accept patches/pull requests, but<br>don't always have time to ensure that every function is exposed via<br>petsc4py.<br></blockquote><div><br></div><div>OK will try, hopefully I have that python level. That would be adding changes mainly to </div><div> petsc4py / src / PETSc / TS.pyx right?</div><br><blockquote type="cite"><br><blockquote type="cite">Also, I would like to limit the step sizes. This is not documented in<br>petsc_manual.pdf. But in sundial.c, there is PetscErrorCode<br>TSSundialsSetMaxTimeStep_Sundials(TS ts,PetscReal maxdt) which I would<br>like to call also from petsc4py.<br><br>Thank you for your help,<br><br>Best regards,<br><br><br>Veltz Romain<br><br>Neuromathcomp Project Team <br>Inria Sophia Antipolis Méditerranée <br>2004 Route des Lucioles-BP 93 <br>FR-06902 Sophia Antipolis<br><a href="http://www-sop.inria.fr/members/Romain.Veltz/public_html/Home.html">http://www-sop.inria.fr/members/Romain.Veltz/public_html/Home.html</a><br></blockquote></blockquote></div><br><div apple-content-edited="true">
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Veltz Romain</div><div><i><br></i></div><div><i>Neuromathcomp Project Team<span class="Apple-converted-space"> </span><br>Inria Sophia Antipolis Méditerranée<span class="Apple-converted-space"> </span><br>2004 Route des Lucioles-BP 93<span class="Apple-converted-space"> </span><br>FR-06902 Sophia Antipolis</i></div><div><a href="http://www-sop.inria.fr/members/Romain.Veltz/public_html/Home.html">http://www-sop.inria.fr/members/Romain.Veltz/public_html/Home.html</a></div><div><br></div></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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