dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Mon, Mar 17, 2008 at 06:07:05PM +0000, Garth N. Wells wrote:
> 
> 
> Garth N. Wells wrote:
> > 
> > Anders Logg wrote:
> >> On Mon, Mar 17, 2008 at 05:18:03PM +0000, Garth N. Wells wrote:
> >>> I'm having a tough time getting the demos to work again :(.
> >>>
> >>> Disabling PETSc, I can plot using pyDOLFIN, but running a cpp demo (like 
> >>> poisson) I get
> >>>
> >>> *** glibc detected *** python: free(): invalid next size (fast): 
> >>> 0x084667f0 ***
> >>>
> >>> when the demo tries to plot. Any ideas?
> >> Same here:
> >>
> >> *** glibc detected *** python: free(): invalid next size (fast):
> >> 0x084fdbf8 ***
> >>
> >> If you write
> >>
> >>   ls -lrt /tmp/*.py
> >>
> >> you'll see the Python script that is run when calling plot() from C++.
> >>
> >> Here's what it looks like:
> >>
> >>   from dolfin import *
> >>
> >>   object = Function("/tmp/filepjlanT.xml")
> >>   plot(object)
> >>
> >> Running just this script reproduces the error one gets when running
> >> the Poisson demo. From the trace it looks like something goes wrong in
> >> DiscreteFunction::interpolate() when DOLFIN is compiled with PETSc.
> >>
> > 
> > I'm getting the error with PETSc disabled.
> > 
> > When I enable PETSc, I get a message that plotting is not configured.
> > 
> >> I looked at it briefly but couldn't figure it out.
> >>
> >
> 
> Looks like the problem was introduced by
> 
>    http://www.fenics.org/hg/dolfin?cs=2576b428fd0e
> 
> I haven't had a look at the details.
> 
> Garth

My fault then. The problem is definitely in
DiscreteFunction::interpolate() to get the vertex values.

I'll see if I can find it.

-- 
Anders


> > I'll take a look.
> > 
> > Garth
> > 
> >>> Also, what's the plan with PETSc? Will '-Wl,-rpath' be added when 
> >>> creating the library? Because it not there now and because I don't want 
> >>> to add the PETSc directory to LD_CONFIFG, at the moment I can't run any 
> >>> of the demos when using PETSc.
> >> Same here.
> >>
> > 
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