Hi,
I tried to upgrade my petsc4py so that I can use tao solver. After I upgraded petsc4py with pip, each time I from dolfin import *, I got the following nasty error,
[0]PETSC ERROR: ------------------------------------------------------------------------
[0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range
[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.
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_WORLD
with errorcode 2093801067.
NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------
Strangely when I do the following, it works fine, but might contain bug
import petsc4py as pet
pet.init()
from dolfin import *
....
I somehow ruined my petsc when I tried to upgrade to petsc3.7.
Description:
ubuntu14.04 LTS 64 bit
install fenics use ppa and sudo apt-get install
upgrade petsc4py using pip
I have referred the discussion in user group, but it does not help me out.
https://groups.google.com/forum/#!msg/fenics-support/Hq3chBYqeXU/hMVmCNMFBQAJ
Thx!
