[petsc-users] Resuming analysis by importing Trajectory Data from external source

[Mohammed Ashour]

Dear All,
I'm using PETSc in conjunction wit PetIGA to solve a 3D phase-field problem
on HPC cluster.
Given the computational load of the code, I'm running it on 15 nodes with a
multithreaded job. Now there is a wall time for the current partition set
to 24 hours, afterward, the job will be killed.

I have been searching for the possibility of using the Trajectory to resume
the run after it being terminated by reloading the dumped binary files
from TSSetSaveTrajectory once again into the TS, i.e., state vector and
it's time derivative, timestep and time.

I have tried using TSTrajectoryGet but I ended up with the following error:
[0]PETSC ERROR: Object is in wrong state
[0]PETSC ERROR: TS solver did not save trajectory

So, I would like to ask if in theory that would be possible? if so, how can
I reload the trajectory from a previously terminated job into a new one?

Yours Sincerely.

-- 

*Mohammed Ashour, M.Sc.*PhD Scholar
Bauhaus-Universität Weimar
Institute of Structural Mechanics (ISM)
Marienstraße 7
99423 Weimar, Germany
Mobile: +(49) 176 58834667
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