[petsc-users] Issue with -log_view

[Tina Patel]

Thanks! That's what myy error message looked like too. I took away all PetscViewer calls since I don't need it for timing anyways. That solved it for me. 
Thanks again,Tina 

    On Saturday, October 14, 2017 6:36 AM, Stefano Zampini <stefano.zampini at gmail.com> wrote:
 

 cutting and paste a message I sent a couple of days ago on the mailing list. I suspect you have a memory leak on some PetscViewer object. Try running with -malloc -malloc_dump -malloc_debug and without -log_view and see if you PETSc reports a memory leak. You can also try running under valgrind with the --leak-check=full option
----------------------------------------------------------------------------------------------Instead of reporting a leak, the below code, when run with -log_view, triggers an error
#include <petscviewer.h>
int main(int argc,char **args){  PetscErrorCode ierr;  PetscViewer    view;
  ierr = PetscInitialize(&argc,&args,( char*)0,help);CHKERRQ(ierr);  ierr = PetscViewerASCIIGetStdout( PETSC_COMM_WORLD,&view); CHKERRQ(ierr);  ierr = PetscViewerCreate(PETSC_COMM_ WORLD,&view);CHKERRQ(ierr);  ierr = PetscFinalize();  return ierr;}
0]PETSC ERROR: --------------------- Error Message ------------------------------ ------------------------------ --[0]PETSC ERROR: Corrupt argument: http://www.mcs.anl.gov/petsc/ documentation/faq.html# valgrind[0]PETSC ERROR: Invalid type of object: Parameter # 1[0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/ documentation/faq.html for trouble shooting.[0]PETSC ERROR: Petsc Development GIT revision: v3.7.6-4792-gbbfd41f  GIT Date: 2017-07-30 13:35:30 +0300[0]PETSC ERROR: ./ex1 on a arch-debug named localhost.localdomain by szampini Thu Oct 12 15:24:19 2017[0]PETSC ERROR: Configure options --download-chaco --download-ctetgen --download-hypre --download-metis --download-mumps --download-p4est --download-parmetis --download-suitesparse --download-triangle --with-scalapack CFLAGS="-Wall -g -O0" CXXFLAGS="-Wall -g -O0" FCFLAGS="-g -O0" PETSC_ARCH=arch-debug[0]PETSC ERROR: #1 PetscObjectReference() line 510 in /home/szampini/src/petsc/src/ sys/objects/inherit.c[0]PETSC ERROR: #2 PetscOptionsGetViewer() line 259 in /home/szampini/src/petsc/src/ sys/classes/viewer/interface/ viewreg.c[0]PETSC ERROR: #3 PetscLogViewFromOptions() line 1753 in /home/szampini/src/petsc/src/ sys/logging/plog.c[0]PETSC ERROR: #4 PetscFinalize() line 1227 in /home/szampini/src/petsc/src/ sys/objects/pinit.c
The problem is with the MPIAttribute Petsc_Viewer_Stdout_keyval attached to PETSC_COMM_WORLD. PETSC_VIEWER_STDOUT_WORLD gets destroyed in the first call to    PetscObjectRegisterDestroyAll( ); Then PetscLogViewFromOptions() call PetscViewerASCIIGetStdout that checks for the presence of the attribute on the communicator, which is still there, since we never called MPI_Comm_free on that communicator.
What would be a solution for this issue? At least, we should print a nice error message in PetscViewerASCIIGetStdout. 
2017-10-14 16:10 GMT+03:00 Barry Smith <bsmith at mcs.anl.gov>:


   Please cut and paste all the output and send it to petsc-maint at mcs.anl.gov

   Barry

> On Oct 14, 2017, at 2:31 AM, Tina Patel <tinap89 at yahoo.com> wrote:
>
> Hi,
>
> I'm using -log_view option from the command line, but it gives me "corrupt argument" and "invalid argument". However, PETSc doesn't throw errors when running without -log_view.
> Am I using it correctly? Or does this hint at another problem? I'm using petsc-master 3.7.6.
>
> Thanks for your time,
> Tina





-- 
Stefano

   
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