Perhaps there is some memory corruption - you can try runnng the code with valgrind.
Satish On Sat, 18 Mar 2017, Praveen C wrote: > Dear all > > I get a segmentation fault when I call TSDestroy. Without TSDestroy the > code runs fine. I have included portion of my code below. > > subroutine runts(ctx) > use userdata > use comdata > use mtsdata > implicit none > #include <petsc/finclude/petsc.h90> > type(tsdata) :: ctx > ! Local variables > integer,parameter :: h = 100 ! File id for history file > TS :: ts > Vec :: u > PetscErrorCode :: ierr > external :: RHSFunction, Monitor > > call VecDuplicate(ctx%p%v_res, u, ierr); CHKERRQ(ierr) > > ! Copy initial condition into u > call VecCopy(ctx%p%v_u, u, ierr); CHKERRQ(ierr) > > call TSCreate(PETSC_COMM_WORLD, ts, ierr); CHKERRQ(ierr) > call TSSetProblemType(ts, TS_NONLINEAR, ierr); CHKERRQ(ierr) > call TSSetRHSFunction(ts, PETSC_NULL_OBJECT, RHSFunction, ctx, ierr); > CHKERRQ(ierr) > call TSSetInitialTimeStep(ts, 0.0, dtg, ierr); CHKERRQ(ierr) > call TSSetType(ts, TSRK, ierr); CHKERRQ(ierr); > call TSSetDuration(ts, itmax, tfinal, ierr); CHKERRQ(ierr); > call TSSetExactFinalTime(ts, TS_EXACTFINALTIME_MATCHSTEP, ierr); > CHKERRQ(ierr); > call TSMonitorSet(ts, Monitor, ctx, PETSC_NULL_OBJECT, ierr); > CHKERRQ(ierr) > call TSSetSolution(ts, u, ierr); CHKERRQ(ierr) > call TSSetFromOptions(ts, ierr); CHKERRQ(ierr) > call TSSetUp(ts, ierr); CHKERRQ(ierr) > > call TSSolve(ts, u, ierr); CHKERRQ(ierr) > > call VecCopy(u, ctx%p%v_u, ierr); CHKERRQ(ierr) > call VecDestroy(u, ierr); CHKERRQ(ierr) > call TSDestroy(ts, ierr); CHKERRQ(ierr) > > end subroutine runts > > Thanks > praveen >
