[petsc-users] Collective abort of all ranks

[Немања Илић (Nemanja Ilic)]

Hello,

I am developing a PETSc application and I encountered the following problem:
My parallel program does everything ok, finishes the meaningful job, and near the end it breaks with the following line:

"rank 0 in job 17  wg_49925   caused collective abort of all ranks
  exit status of rank 0: killed by signal 9"

It happends regardless of number of processes in the job.

Here is the ending of the function 'calculate' which does the work:

      "....
	// write result to file
	PetscViewer viewer;
	ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD, output_file_name, &viewer); CHKERRQ(ierr);
	ierr = PetscViewerSetFormat(viewer, PETSC_VIEWER_ASCII_COMMON); CHKERRQ(ierr);
	ierr = VecView(bp, viewer); CHKERRQ(ierr);


	// clean-up
	ierr = MatDestroy(Ap); CHKERRQ(ierr);
	ierr = VecDestroy(bp); CHKERRQ(ierr);
	ierr = VecDestroy(xp); CHKERRQ(ierr);

	free(col);
	free(row);
	free(row_values);
	
	return b;"

The file 'viewer' is outputed correctly.
When 'calculate' finishes the finalization function gets called:
	"ierr = PetscFinalize(); CHKERRQ(ierr);"

Does anyone have any idea to why my program breaks?

Thank you in advance,
Best regards,
Nemanja Ilic

PS
Sorry if this is not the right place for my question :)