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<span class="">TSSetTimeStep()</span>

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</span><a href="https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/TS/TSSetTimeStep.html#TSSetTimeStep" class="">https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/TS/TSSetTimeStep.html#TSSetTimeStep</a>

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<div class=""><span class="">If you want to decide the step size by yourself, make sure that the adaptivity is turned off, e.g., with -ts_adapt_type none</span></div>

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<div class=""><span class="">Btw, have you tried the available TSAdapt types? Is there anything special in your problems so that none of these adaptors works?</span></div>

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<div class="">Hong (Mr.)</div>

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<blockquote type="cite" class="">On Nov 17, 2019, at 9:25 AM, Yingjie Wu via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" class="">petsc-users@mcs.anl.gov</a>> wrote:<br class="">

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Dear Petsc developers<br class="">

Hi,<br class="">

Recently I am trying to using TS to solve time-dependent nonlinear PDEs. In my program, next time step is based on the results of previous time step. I want to add this control in TSmonitor() to change time step length in calculation. I referred to user guide

 but I didn't find what I wanted. Please give me some advice.<br class="">

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Thanks,<br class="">

Yingjie<br class="">

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