Thanks for the feedback.
I have tried changing the value of refinement_algorithm in
dolfin_parameters.xml to each of the three allowed values. Unfortunately, each
time, when I run d1_p2d.py, I get the following message:
Reading DOLFIN parameters from file "dolfin_parameters.xml".
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
/usr/lib/python2.7/dist-packages/IPython/utils/py3compat.pyc in execfile(fname,
*where)
202 else:
203 filename = fname
--> 204 __builtin__.execfile(filename, *where)
/home/marinov/Desktop/ongoing_projects/my_work_with_fenics/examples-1.0/stationary/poisson/d1_p2D.py
in <module>()
11
12 # Create mesh and define function space
---> 13 mesh = UnitSquare(6, 4)
14 #mesh = UnitCube(6, 4, 5)
15 V = FunctionSpace(mesh, 'Lagrange', 1)
NameError: name 'UnitSquare' is not defined
Do you have any suggestions as to how I can fix this?
________________________________________
From: [email protected] [[email protected]] on behalf of Johannes
Ring [[email protected]]
Sent: Thursday, April 16, 2015 2:03 PM
To: Kaloyan Dimitrov Marinov
Cc: [email protected]
Subject: Re: [FEniCS-support] Installation instructions for FEniCS on an Ubuntu
machine
[Please keep fenics-support in Cc]
On Thu, Apr 16, 2015 at 1:53 PM, Kaloyan Dimitrov Marinov <[email protected]> wrote:
> Dear Johannes,
>
> Thank you for your message, and my apologies for replying so late.
>
> I'd like to begin by mentioning that my operating system is a 64-bit Ubuntu
> 14.04 LTS. After a few trials and errors, I removed Anaconda from my system
> (as described here:
> http://stackoverflow.com/questions/28283695/revert-ubuntu-14-04-to-default-python-after-uninstalling-anaconda).
> Then, as described on http://fenicsproject.org/download/ubuntu_details.html,
> I ran the following commands in a terminal:
>
> sudo add-apt-repository ppa:fenics-packages/fenics
> sudo apt-get update
> sudo apt-get install fenics
> sudo apt-get dist-upgrade
>
>
> In 1) below, I state my current issue. In 2) below, I give the output of the
> command "dpkg -l | grep dolfin":
>
> 1) When I start ipython and execute "run d1_p2D.py", I get the following
> message:
>
> Reading DOLFIN parameters from file "dolfin_parameters.xml".
> terminate called after throwing an instance of 'std::runtime_error'
> what():
>
> *** -------------------------------------------------------------------------
> *** DOLFIN encountered an error. If you are not able to resolve this issue
> *** using the information listed below, you can ask for help at
> ***
> *** [email protected]
> ***
> *** Remember to include the error message listed below and, if possible,
> *** include a *minimal* running example to reproduce the error.
> ***
> *** -------------------------------------------------------------------------
> *** Error: Unable to assign parameter value.
> *** Reason: Illegal value for parameter "refinement_algorithm". Allowed
> values are: [plaza, plaza_with_parent_facets, regular_cut].
Try to open dolfin_parameters.xml and replace the value for
refinement_algorithm with one of the above values.
> *** Where: This error was encountered inside Parameter.cpp.
> *** Process: unknown
> ***
> *** DOLFIN version: 1.5.0
> *** Git changeset: unknown
> *** -------------------------------------------------------------------------
>
> Aborted (core dumped)
>
> 2) The output of the command "dpkg -l | grep dolfin" is as follows:
>
> ii dolfin-bin
> 1.5.0+dfsg-1~ppa3~trusty1 all Executable
> scripts for DOLFIN
> ii dolfin-doc
> 1.5.0+dfsg-1~ppa3~trusty1 all
> Documentation and demo programs for DOLFIN
> ii libdolfin-dev
> 1.5.0+dfsg-1~ppa3~trusty1 amd64 Shared links
> and header files for DOLFIN
> rc libdolfin1.3 1.3.0+dfsg-2
> amd64 Shared libraries for DOLFIN
> ii libdolfin1.5
> 1.5.0+dfsg-1~ppa3~trusty1 amd64 Shared
> libraries for DOLFIN
> ii python-dolfin
> 1.5.0+dfsg-1~ppa3~trusty1 amd64 Python
> interface for DOLFIN
This looks fine.
Johannes
>
> If you could kindly help me resolve the DOLFIN-related issue described in 1),
> I would be very grateful.
>
> Many thanks in advance,
> Kaloyan
>
> ________________________________________
> From: [email protected] [[email protected]] on behalf of Johannes
> Ring [[email protected]]
> Sent: Thursday, April 09, 2015 12:58 PM
> To: Kaloyan Dimitrov Marinov
> Cc: [email protected]
> Subject: Re: [FEniCS-support] Installation instructions for FEniCS on an
> Ubuntu machine
>
> On Wed, Apr 8, 2015 at 2:48 PM, Kaloyan Dimitrov Marinov <[email protected]> wrote:
>> Dear Sir/Madam,
>>
>> My name is Kaloyan Marinov, and I am writing to you with a question about
>> the example d1_p2D.py from the FEniCS tutorial on
>> http://fenicsproject.org/documentation/tutorial/index.html.
>>
>> I have Python on an Ubuntu machine, and I installed FEniCS according to the
>> instructions on http://fenicsproject.org/download/ubuntu_details.html; I
>> also added the FEniCS Personal Package Archive (PPA) to my system.
>>
>> When I run d1_p2D.py using the Interactive Python console, I get
>>
>> ImportError: No module named 'dolfin'
>>
>> but, according to my Synaptic Package Manager, I do have python-dolfin,
>> dolfin-bin, and dolfin-doc. Do you have any suggestions on how I can resolve
>> this issue?
>
> Can you show us the output from the the following command?
>
> dpkg -l | grep dolfin
>
> Johannes
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