[petsc-users] ODE Solver on multiple cores

[Hong]

Fahad:
Run your code with '-ts_view' to see what solvers being used for sequential
and parallel runs.

Hong

Hello,
>
>
>
> I have written a code to solve a simple differential equation (x’’+x’+6x=0
> with initial values, x(0)=2, x’(0)=3). It works well on a single core and
> produces result close to theoretical answer but whenever I am trying to run
> the same code on multiple cores, I am getting incorrect results. It seems
> to me that, for multiple cores it stops after taking only 2 steps
> regardless of the final time and gives the final result (which is
> inaccurate). I tried different TSType (TSEULER, TSBEULER, TSSUNDIALS, TSCN
> etc.) but I always ended up with the same issue.
>
>
>
> Can you tell me what possibly may cause this problem? Thanks in advance.
>
>
>
> Regards,
>
> Fahad
>
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