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[Gerd Wachsmuth <gerd.wachsmuth@xxxxxxxxxxxxxxxxxxxxxxxxx>]

Public bug reported:

Following setup:

I have a mesh (with FunctionSpace V) and a submesh (with FunctionSpace
W). Assembling a linear form on V over this subdomain involving a
coefficient from W will fail.

I think the problem is that Dolfin would like to evaluate the function
from W at the boundary of the subdomain. Maybe due to rounding errors
this point lies outside the subdomain and the evaluation fails.

It does not happen, if W is a CG or DG space.

** Affects: dolfin
     Importance: Undecided
         Status: New

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Assembling over subdomain fails
https://bugs.launchpad.net/bugs/660334
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Status in DOLFIN: New

Bug description:
Following setup:

I have a mesh (with FunctionSpace V) and a submesh (with FunctionSpace W). Assembling a linear form on V over this subdomain involving a coefficient from W will fail.

I think the problem is that Dolfin would like to evaluate the function from W at the boundary of the subdomain. Maybe due to rounding errors this point lies outside the subdomain and the evaluation fails.

It does not happen, if W is a CG or DG space.