Dear Firedrakes, My computations get killed with the following exception: COFFEE finished in 0.0201869 seconds (flops: 92 -> 92) COFFEE finished in 0.0305271 seconds (flops: 92 -> 92) COFFEE finished in 0.0411251 seconds (flops: 92 -> 92) [1] pyop2:INFO Solving nonlinear variational problem... [2] pyop2:INFO Solving nonlinear variational problem... [0] pyop2:INFO Solving nonlinear variational problem... [3] pyop2:INFO Solving nonlinear variational problem... [0] pyop2:INFO Compiling wrapper... [0] pyop2:INFO Compiling wrapper...done [2]PETSC ERROR: ------------------------------------------------------------------------ [2]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end [2]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger [2]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind [2]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory corruption errors [2]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and run [2]PETSC ERROR: to get more information on the crash. [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger [0]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind [0]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory corruption errors [0]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and run [0]PETSC ERROR: to get more information on the crash. [1]PETSC ERROR: ------------------------------------------------------------------------ [1]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end [1]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger [1]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind [1]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory corruption errors [1]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and run [1]PETSC ERROR: to get more information on the crash. -------------------------------------------------------------------------- mpirun noticed that process rank 3 with PID 6682 on node comp-pc3234 exited on signal 9 (Killed). -------------------------------------------------------------------------- why does this happen/can it be avoided? Best, Fryderyk