<div dir="ltr">Dear PETSc dev team,<div> When there is an PETSc error, I go following overly verbose error message. Is it possible to get a simple error message like "Initial vector is zero or belongs to the deflection space"?</div><div><br></div><div>Thanks,</div><div>Sam</div><div><br></div><div><pre bgcolor="#f4f5f7" style="white-space:pre-wrap;color:rgb(23,43,77);font-size:14px;background-color:rgb(244,245,247);border:1px solid rgb(223,225,230);border-radius:3px;line-height:20px;margin-top:10px;margin-bottom:0px;padding:6px 10px"><code bgcolor="#f4f5f7" style="border-radius:3px;line-height:20px;background-color:transparent;border:0px;display:inline;margin:0px;padding:0px">[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[0]PETSC ERROR: Initial vector is zero or belongs to the deflation space
[0]PETSC ERROR: See <a href="http://www.mcs.anl.gov/petsc/documentation/faq.html" target="_blank">http://www.mcs.anl.gov/petsc/documentation/faq.html</a> for trouble shooting.
[0]PETSC ERROR: Petsc Release Version 3.11.3, Jun, 26, 2019
[0]PETSC ERROR: Unknown Name on a arch-starccmplus_serial_real named <a href="http://pl2denbg0033pc.net.plm.eds.com/" target="_blank">pl2denbg0033pc.net.plm.eds.com</a> by cd3ppw Tue Mar 16 16:19:28 2021
[0]PETSC ERROR: Configure options --with-x=0 --with-fc=0 --with-debugging=0 --with-blaslapack-dir=/usr/local/jenkins/dev1/mkl/2017.2-cda-001/linux/lib/intel64/../.. --with-mpi=0 -CFLAGS=-O3 -CXXFLAGS=-O3 --with-clean=1 --force --with-scalar-type=real
[0]PETSC ERROR: <a href="https://stash.cd-adapco.com/projects/UPS/repos/star/pull-requests/1" title="Feature/fixversion" target="_blank" style="color:rgb(0,82,204);text-decoration-line:none">#1</a> EPSGetStartVector() line 806 in ../../../slepc/src/eps/interface/epssolve.c
[0]PETSC ERROR: <a href="https://stash.cd-adapco.com/projects/UPS/repos/star/pull-requests/2" title="Feature/CCMP-69574/test unit facetree" target="_blank" style="color:rgb(0,82,204);text-decoration-line:none">#2</a> EPSSolve_KrylovSchur_Default() line 259 in ../../../slepc/src/eps/impls/krylov/krylovschur/krylovschur.c
[0]PETSC ERROR: <a href="https://stash.cd-adapco.com/projects/UPS/repos/star/pull-requests/3" title="Feature/BDS-1490/table curve interpolation" target="_blank" style="color:rgb(0,82,204);text-decoration-line:none">#3</a> EPSSolve() line 149 in ../../../slepc/src/eps/interface/epssolve.c</code></pre></div></div>