SV: Timesolver: Newmark method?

Lars Rindorf Lars.Rindorf at
Wed Dec 3 07:39:28 CST 2008

Hi Matt


I could implement the Newmark method with your assistance. No problem. By it has to make sense for my work.


How fast and memory efficient is the petsc TS? Is it optimized in some way or implemented in some clever way numerically?


KR, Lars


Fra: owner-petsc-users at [mailto:owner-petsc-users at] På vegne af Matthew Knepley
Sendt: 2. december 2008 14:29
Til: petsc-users at
Emne: Re: Timesolver: Newmark method?


On Tue, Dec 2, 2008 at 5:55 AM, Lars Rindorf <Lars.Rindorf at> wrote:

	Dear all 

	Is it planned to do the Newmark time scheme for second order time differential equations in petsc?

We have not planned to do it, however if you would like to contribute it, we would help you do it. The
TS strcutures are fairly straightforward and looking at Crank-Nicholson should help.





	Lars Rindorf

	Technology consultant, Ph.D.


	Mobile +45 7220 3367


	Surfaces and microtechnology

	Danish Technological Institute


	2630 Taastrup

	Denmark <> 

	Phone +45 7220 2000


What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
-- Norbert Wiener

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