Thanks.
Should I call "parallel_object_only()" throughout the code to check when it
lost sync?
Any smarter way to do that?
What GDB can do for me?
Parallel debugging is really something new to me...
On Fri, May 3, 2019 at 7:34 PM Stogner, Roy H <royst...@ices.utexas.edu>
wrote:
>
> On Fri, 3 May 2019, Renato Poli wrote:
>
> > I see a number of error messages, as below.
> > I am struggling to understand what they mean and how to move forward.
> > It is related to manually setting a system solution and closing the
> > "solution" vector afterwards.
> > Any idea?
> >
> > Assertion
> >
> `(this->comm()).verify(std::string("./include/libmesh/petsc_vector.h").size())'
> > failed.
> > Assertion
> > `(this->comm()).verify(std::string("src/mesh/mesh_base.C").size())'
> failed.
> > [Assertion
> >
> `(this->comm()).verify(std::string("./include/libmesh/petsc_vector.h").size())'
> > failed.
> > [2] Assertion
> >
> `(this->comm()).verify(std::string("./include/libmesh/petsc_vector.h").size())'
> > failed.[0] ./include/libmesh/petsc_vector.h, line 812, compiled Feb 22
> 2019
> > at 17:56:59
> > 1] src/mesh/mesh_base.C, line 511, compiled Feb 22 2019 at 17:55:09
> > ./include/libmesh/petsc_vector.h, line 812, compiled Feb 22 2019 at
> 17:56:59
> > application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0
> > application called MPI_Abort(MPI_COMM_WORLD, 1) - process 1
> > application called MPI_Abort(MPI_COMM_WORLD, 1) - process 2
> >
> > Thanks,
> > Renato
>
> You're running in parallel, but your different processors have gotten
> out of sync. At least 1 is at mesh_base.C line 511, and at least 2 or
> 3 are at petsc_vector.h 812. Are you not calling PetscVector::close()
> on every processor, perhaps? Then the missing processor would
> continue to whatever the next parallel-only operation is and the
> dbg/devel mode check for synchronization would fail.
> ---
> Roy
>
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