Hi all,
I have installed Deal II 8.5 and trunk versions on Daint (the CSCS
machine). When I run the example step-5 with PETSc I have the following
error:
Running using PETSc.
Cycle 0:
Number of degrees of freedom: 659 (578+81)
+---------------------------------------------+------------+------------+
| Total wallclock time elapsed since start | 0.354s | |
| | | |
| Section | no. calls | wall time | % of total |
+---------------------------------+-----------+------------+------------+
| assembly | 1 | 0.14s | 40% |
| setup | 1 | 0.0873s | 25% |
| solve | 1 | 0.365s | 1e+02% |
+---------------------------------+-----------+------------+------------+
ERROR: Uncaught exception in MPI_InitFinalize on proc 0. Skipping
MPI_Finalize() to avoid a deadlock.
----------------------------------------------------
Exception on processing:
--------------------------------------------------------
An error occurred in line <66> of file
</project/csstaff/nfadel/dealii/source/lac/petsc_precondition.cc> in
function
void
dealii::PETScWrappers::PreconditionerBase::vmult(dealii::PETScWrappers::VectorBase&,
const dealii::PETScWrappers::VectorBase&) const
The violated condition was:
pc != nullptr
Additional information: (none)
--------------------------------------------------------
Aborting!
----------------------------------------------------
[0]PETSC ERROR: #1 PetscCommDestroy() line 214 in
/project/csstaff/nfadel/petsc-vanilla/src/sys/objects/tagm.c
[0]PETSC ERROR: #2 PetscHeaderDestroy_Private() line 116 in
/project/csstaff/nfadel/petsc-vanilla/src/sys/objects/inherit.c
on github I found the issue "step-55 PETSc fails #4150" already solved but
it seems not the same problem.
I reproduce the crash both in serial and parallel, while trilinos works
fine.
The error is caught when Deal II checks if the pointer to preconditioner
object's pc is a NULL.
AssertThrow (pc != nullptr, StandardExceptions::ExcInvalidState ());
It happens when the minres solver does:
precondition.vmult (v,*u[1]);
Do you have any hint how to fix it?
Thank you in advance!
Nur
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