Re: [petsc-users] problem with nested logging, standalone example

I cannot reproduce > On Jul 10, 2025, at 3:46 PM, Junchao Zhang wrote: > > Adding -mca coll_hcoll_enable 0 didn't change anything at my end. Strange. > > --Junchao Zhang > > > On Thu, Jul 10, 2025 at 3:39 AM Klaij, Christiaan > wrote: >> An additional clue perha

Re: [petsc-users] problem with nested logging, standalone example

Adding -mca coll_hcoll_enable 0 didn't change anything at my end. Strange. --Junchao Zhang On Thu, Jul 10, 2025 at 3:39 AM Klaij, Christiaan wrote: > An additional clue perhaps: with the option OMPI_MCA_coll_hcoll_enable=0, > the code does not hang but gives the error below. > > Chris > > > $

Re: [petsc-users] problem with nested logging, standalone example

"When running on mulitple procs the example hangs during PetscLogView with the backtrace below." Is it the same traceback on both MPI processes? Barry > On Jul 10, 2025, at 8:46 AM, Klaij, Christiaan via petsc-users > wrote: > > Hi Matt, > > Attached is the output of valgrind:

Re: [petsc-users] MatView for parallel jobs

You can try this: B = A.convert('dense') dense_mat = B.getDenseArray(readonly=True) print(dense_mat) Jose > El 10 jul 2025, a las 10:35, Arun Soman Pillai - STFC UKRI via petsc-users > escribió: > > Hi, > I am trying to view a matrix object when running a job in parallel. The >

Re: [petsc-users] MatView for parallel jobs

On Thu, Jul 10, 2025 at 11:29 AM Arun Soman Pillai - STFC UKRI via petsc-users wrote: > Hi, > I am trying to view a matrix object when running a job in parallel. The > application is BOUT++ > (https://urldefense.us/v3/__https://boutproject.github.io/__;!!G_uCfscf7eWS!ZLeEFXZF4ASJ2hjoTAuK-DQjJkNz

[petsc-users] MatView for parallel jobs

Hi, I am trying to view a matrix object when running a job in parallel. The application is BOUT++ (https://urldefense.us/v3/__https://boutproject.github.io/__;!!G_uCfscf7eWS!Z-f_HrmUaFAwAK4e2pBspL2oRFtfq9O3GtRCoS_Nb1e9y5j2Vjq6THJTnoot7XiMeRAxlNhskW0QrMV7x_v_VsBXVAsGHRrIifxc$ ) which uses petsc a

Re: [petsc-users] problem with nested logging, standalone example

On Thu, Jul 10, 2025 at 8:46 AM Klaij, Christiaan wrote: > Hi Matt, > > Attached is the output of valgrind: > > $ mpirun -mca coll_hcoll_enable 0 -n 2 valgrind --track-origins=yes > ./ex2f-cklaij-dbg -pc_type jacobi -ksp_monitor_short > -ksp_gmres_cgs_refinement_type refine_always > out 2>&1 > H

Re: [petsc-users] problem with nested logging, standalone example

Hi Matt, Attached is the output of valgrind: $ mpirun -mca coll_hcoll_enable 0 -n 2 valgrind --track-origins=yes ./ex2f-cklaij-dbg -pc_type jacobi -ksp_monitor_short -ksp_gmres_cgs_refinement_type refine_always > out 2>&1 Chris From: Matthew Knepley

Re: [petsc-users] problem with nested logging, standalone example

On Thu, Jul 10, 2025 at 4:39 AM Klaij, Christiaan via petsc-users < petsc-users@mcs.anl.gov> wrote: > An additional clue perhaps: with the option OMPI_MCA_coll_hcoll_enable=0, > the code does not hang but gives the error below. > The error on its face should be impossible. On line 289, we pass po

Re: [petsc-users] problem with nested logging, standalone example

An additional clue perhaps: with the option OMPI_MCA_coll_hcoll_enable=0, the code does not hang but gives the error below. Chris $ mpirun -mca coll_hcoll_enable 0 -n 2 ./ex2f-cklaij-dbg -pc_type jacobi -ksp_monitor_short -ksp_gmres_cgs_refinement_type refine_always 0 KSP Residual norm 1.11

Re: [petsc-users] problem with nested logging, standalone example

Hi Junchao, Thanks for testing. I've fixed the error but unfortunately that doesn't change the behavior, the code still hangs as before, with the same stack trace... Chris _ dr. ir. Christiaan Klaij | senior researcher Research & Development | CFD Development T +31 317 49 33 44 | https://u