dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Fri, Feb 15, 2008 at 11:50:41AM -0500, Gideon Simpson wrote:
> I too have been seeing this error, but attributed it to using OS X  
> 10.5.

Since it works for me, it would be excellent if you could try to find
out what goes wrong.

Another thing you could try is to run

  ffc-clean

It might be that you have some old forms/modules in your FFC cache
(~/.ffc/cache) which have been built for UFC 1.0.

> Also, I find that some, but not all, of pydolfin does work,  
> such as the mesh related examples.  Things involving PETSc tend to  
> cause these convulsions.

I have just gone through all the demos and if you pull the latest
version, all Python demos should work, unless they explicitly state
so when you run them:

    "This demo is not working, please fix me"

There are still a few things to fix in the Python interface, things
that work in C++ but not in Python. These are mainly NonlinearPDE,
assembly over subdomains and ODE.

If something else breaks, please tell us.

-- 
Anders



> 
> On Feb 15, 2008, at 11:02 AM, Harish Narayanan wrote:
> 
> > Kristian Oelgaard wrote:
> >> I just cloned UFC, FFC and DOLFIN.
> >>
> >> When I run the
> >> dolfin/src/demo/pde/poisson/python/demo.py
> >>
> >> I get a segmentation fault when assembling the linear form
> >>
> >>  Assembling rank 1 form.
> >>  Assembling over 2048 cells.
> >>  | Assembling over cells                                           |
> >>   
> >> |-----------------------------------------------------------------|  
> >> 0.0%
> >> Segmentation fault (core dumped)
> >>
> >> Has anyone experienced the same kind of problem?
> >>
> >
> > To reproduce this, I just updated UFC, FFC and DOLFIN. Upon rebuilding
> > them (after a 'make distclean' for DOLFIN), I see the following. I
> > believe it's a slightly more verbose manifestation of the your error.
> > I'll step through it with gdb.
> >
> > # python demo.py
> >
> > <snip>
> >
> > | Assembling over cells                                           |
> > |-----------------------------------------------------------------|  
> > 0.0%
> > [0]PETSC ERROR:
> > ------------------------------------------------------------------------
> > [0]PETSC ERROR: Caught signal number 10 BUS: Bus Error, possibly  
> > illegal
> > memory access
> > [0]PETSC ERROR: Try option -start_in_debugger or - 
> > on_error_attach_debugger
> > [0]PETSC ERROR: or see
> > http://www.mcs.anl.gov/petsc/petsc-as/documentation/troubleshooting.html#Signal 
> > [0]PETSC
> > ERROR: or try http://valgrind.org on linux or man libgmalloc on  
> > Apple 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.
> > [0]PETSC ERROR: --------------------- Error Message
> > ------------------------------------
> > [0]PETSC ERROR: Signal received!
> > [0]PETSC ERROR:
> > ------------------------------------------------------------------------
> > [0]PETSC ERROR: Petsc Release Version 2.3.3, Patch 8, Fri Nov 16
> > 17:03:40 CST 2007 HG revision:  
> > 414581156e67e55c761739b0deb119f7590d0f4b
> > [0]PETSC ERROR: See docs/changes/index.html for recent updates.
> > [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
> > [0]PETSC ERROR: See docs/index.html for manual pages.
> > [0]PETSC ERROR:
> > ------------------------------------------------------------------------
> > [0]PETSC ERROR: unknown on a darwin9.2 named edfico by hnarayan Fri  
> > Feb
> > 15 10:51:27 2008
> > [0]PETSC ERROR: Libraries linked from
> > /Users/hnarayan/Work/FEniCS/petsc-2.3.3-p8/lib/darwin9.2.0-cxx-opt
> > [0]PETSC ERROR: Configure run at Wed Feb 13 20:26:19 2008
> > [0]PETSC ERROR: Configure options --with-fc=0 --with-clanguage=cxx
> > --with-debugging=0 COPTFLAGS=-O3 --with-shared=0
> > [0]PETSC ERROR:
> > ------------------------------------------------------------------------
> > [0]PETSC ERROR: User provided function() line 0 in unknown directory
> > unknown file
> > [edfico:37499] MPI_ABORT invoked on rank 0 in communicator
> > MPI_COMM_WORLD with errorcode 59
> >
> >
> > _______________________________________________
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> > DOLFIN-dev@xxxxxxxxxx
> > http://www.fenics.org/mailman/listinfo/dolfin-dev
> 
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