On 28/08/2020 10:52, Jose E. Roman wrote:
Thibaut: the changes that Barry mentioned are already in master. Can you try?
Barry: I think the issue is with the PetscViewer argument. KSPView() has a
custom Fortran stub that calls PetscPatchDefaultViewers_Fortran(), but this is
missing in KSPConvergedReasonView().
Jose
I reconfigured/compiled PETSc from the most recent master branch an hour
ago; the following compiles fine:
CALL KSPSolve(ksp,vec_rhs,vec_sol,ierr)
CHKERRA(ierr)
CALL KSPGetConvergedReason(ksp,ksp_reason,ierr)
CHKERRA(ierr)
CALL KSPConvergedReasonView(ksp,PETSC_VIEWER_STDOUT_WORLD,ierr)
CHKERRA(ierr)
but I still get a similar backtrace when KSPConvergedReasonView is called:
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff511e89c in PetscObjectTypeCompare (obj=0x8,
type_name=0x7ffff7580128 "ascii",
same=0x7fffffffd7c8) at
/home/thibaut/Packages/petsc/src/sys/objects/destroy.c:160
160 else if (!type_name || !obj->type_name) *same = PETSC_FALSE;
(gdb) backtrace
#0 0x00007ffff511e89c in PetscObjectTypeCompare (obj=0x8,
type_name=0x7ffff7580128 "ascii",
same=0x7fffffffd7c8) at
/home/Packages/petsc/src/sys/objects/destroy.c:160
#1 0x00007ffff66ed4d3 in KSPConvergedReasonView (ksp=0x555555b44860,
viewer=0x8)
at /home/Packages/petsc/src/ksp/ksp/interface/itfunc.c:455
#2 0x00007ffff6733fca in kspconvergedreasonview_ (ksp=0x5555559403c0
<__solver_MOD_ksp>,
viewer=0x7fffffffda60, __ierr=0x7fffffffda6c)
at /home/Packages/petsc/src/ksp/ksp/interface/ftn-auto/itfuncf.c:295
#3 0x00005555555e165d in solver::solve_linear_problem (vec_rhs=...,
vec_sol=...)
at mod_solver.F90:1867
#4 0x00005555556156fe in solver::solve () at mod_solver.F90:164
#5 0x00005555555bb8f3 in main () at main.F90:67
#6 0x00005555555bb964 in main (argc=1, argv=0x7fffffffe17d) at main.F90:3
#7 0x00007ffff46f71e3 in __libc_start_main () from
/usr/lib/x86_64-linux-gnu/libc.so.6
#8 0x000055555555cd5e in _start ()
Thibaut
El 27 ago 2020, a las 17:59, Barry Smith <[email protected]> escribió:
This is probably due to the final argument being a character string which
PETSc has difficulty managing by default for Fortran.
I just removed the format argument from the call so this problem will gone
soon.
You could just comment out the call for now and put a print statement in
instead.
The problem will be fixed as soon as my merge request gets into master.
Sorry about this.
Barry
On Aug 27, 2020, at 10:25 AM, Thibaut Appel <[email protected]> wrote:
Dear PETSc users,
I found out that (at least in the master branch) that KSPReasonView has been
recently deprecated in favor of KSPConvergedReasonView.
After changing my application code, I thought I was using the function
correctly:
CALL KSPGetConvergedReason(ksp,ksp_reason,ierr)
CHKERRA(ierr)
IF (ksp_reason < 0) THEN
CALL
KSPConvergedReasonView(ksp,PETSC_VIEWER_STDOUT_WORLD,PETSC_VIEWER_DEFAULT,ierr)
CHKERRA(ierr)
END IF
but I still get the following backtrace
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff51dea59 in PetscObjectTypeCompare (obj=0x8,
type_name=0x7ffff75b5b88 "ascii", same=0x7fffffffd7b8)
at /home/Packages/petsc/src/sys/objects/destroy.c:160
160 else if (!type_name || !obj->type_name) *same = PETSC_FALSE;
(gdb) bt
#0 0x00007ffff51dea59 in PetscObjectTypeCompare (obj=0x8,
type_name=0x7ffff75b5b88 "ascii", same=0x7fffffffd7b8)
at /home/Packages/petsc/src/sys/objects/destroy.c:160
#1 0x00007ffff6ba1d83 in KSPConvergedReasonView (ksp=0x555555bb2510,
viewer=0x8,
format=PETSC_VIEWER_DEFAULT)
at /home/Packages/petsc/src/ksp/ksp/interface/itfunc.c:452
#2 0x00007ffff6beb37a in kspconvergedreasonview_ (
ksp=0x55555593f3c0 <__solver_MOD_ksp>, viewer=0x7fffffffda50,
format=0x5555558fae48, __ierr=0x7fffffffda6c)
at /home/Packages/petsc/src/ksp/ksp/interface/ftn-auto/itfuncf.c:295
#3 0x00005555555e040d in solver::solve_linear_problem (vec_rhs=...,
vec_sol=...)
at mod_solver.F90:1872
#4 0x0000555555614453 in solver::solve () at mod_solver.F90:164
#5 0x00005555555ba3c6 in main () at main.F90:67
#6 0x00005555555ba437 in main (argc=1, argv=0x7fffffffe17e) at main.F90:3
#7 0x00007ffff46fa1e3 in __libc_start_main ()
from /usr/lib/x86_64-linux-gnu/libc.so.6
#8 0x000055555555cd7e in _start ()
as if there was a type mismatch. Could anyone pinpoint what's wrong?
Thank you,
Thibaut
