[petsc-users] Inertia computation fails

[Perceval Desforges]

Ah thank you, I suspected I made a mistake, I hadn't received a copy of
my email... 

What is the reason for this failure? Is there anything I can do about
it? 

Thanks, 

Perceval,

> The address here should be petsc-users - not petsc-users-bounces
> 
> balay at sb /home/balay/git-repo/slepc (master=)
> $ git grep 'Inertia computation fails'
> src/eps/impls/krylov/krylovschur/ks-slice.c:          if (zeros) SETERRQ1(((PetscObject)eps)->comm,PETSC_ERR_CONV_FAILED,"Inertia computation fails in %g",sr->int1);
> src/eps/impls/krylov/krylovschur/ks-slice.c:      if (zeros) SETERRQ1(((PetscObject)eps)->comm,PETSC_ERR_CONV_FAILED,"Inertia computation fails in %g",newShift);
> src/pep/impls/krylov/stoar/qslice.c:        if (!nconv) SETERRQ1(((PetscObject)pep)->comm,PETSC_ERR_CONV_FAILED,"Inertia computation fails in %g",nzshift);
> src/pep/impls/krylov/stoar/qslice.c:      if (zeros) SETERRQ1(((PetscObject)pep)->comm,PETSC_ERR_CONV_FAILED,"Inertia computation fails in %g",newShift);
> 
> So the message is likely coming from slepc
> 
> Satish
> 
> ---------- Forwarded message ----------
> Date: Thu, 05 Mar 2020 14:43:13 +0100
> From: Perceval Desforges <perceval.desforges at polytechnique.edu>
> To: petsc-users <petsc-users-bounces at mcs.anl.gov>
> Subject: Inertia computation fails
> 
> Dear PETSc developpers, I am using SLEPC and MUMPS to calculate the eigenvalues of a real
> symmetric matrix in an interval. I have come upon a crash and I was
> unable to find any documentation on the error I got. 
> 
> The error is:  Inertia computation fails in 2.19893 Is this a slepc, a Petsc or a mumps problem? 
> 
> Thanks, 
> 
> Perceval
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