Hi Shawn, On Monday 30 July 2012 07:38:18 Shawn Zhang wrote: > What puzzles me is that in my case, tEnd=8000, which should be long enough > to produce restart files. I have about 125 vtk files written, each about > 700MB, taking a total of 3 weeks to compute. This renders restart capability > faiely important. I did not modify any default values on file output > frequency.
that's strange. writing restart files has been enabled by default since forever. Are you sure that you did not accidentally delete the .drs files or that the directory you're looking at is not one where you only copied the vtu files to? To investigate this, I would also advice you to use a smaller grid for testing purposes, so you don't have to wait several days between your tries. > Also, by setting 1p2c test problem dtInitial=1, tEnd = 10000, I finally got > a restart file, "outflow_time=245.573_rank=0.drs". After checking the *.pvd > file, this time corresponds to result file "outflow-00011.vtk". > > So how does the time used in default "every-10" corresponds to the > simulation time "tEnd"? well, this seems to be quite the expected behavior me. The initial solution is written to the file "outflow-00001.vtu" and if you add 10, you end up at number 11... the simulated time does not have anything to do with the time step number. The size of the timesteps is controlled by the heuristic "If the newton method converged quickly, increase the time step size; if it converged slowly (or not at all) reduce it". cheers Andreas -- Andreas Lauser Department of Hydromechanics and Modelling of Hydrosystems University of Stuttgart Pfaffenwaldring 61 D-70569 Stuttgart Phone: (+49) 711 685-64719 Fax: (+49) 711 685-60430 www.hydrosys.uni-stuttgart.de -- Andreas Lauser Department of Hydromechanics and Modelling of Hydrosystems University of Stuttgart Pfaffenwaldring 61 D-70569 Stuttgart Phone: (+49) 711 685-64719 Fax: (+49) 711 685-60430 www.hydrosys.uni-stuttgart.de _______________________________________________ Dumux mailing list [email protected] https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
