http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/TS/TSSolve.html#TSSolve
The TSSolve web page does not have an output parameter. It is not clear to my why you would use TSSetSolution. Is there any difference between using and not using TSSetSolution other than you do not need to give TSSolve u? Mark
