Hi, So I was planning to solve a problem which distributes a mesh and its submesh to different processes. I am aware that the FEniCS in-built SubMesh function is not yet compatible with mpi. However, I have been busy trying to find a way around it. I tried doing it myself and mapping dofs and verti…

I would suggest using MeshView, see for instance: https://bitbucket.org/fenics-project/dolfin/src/master/python/demo/undocumented/meshview-3D2D/demo_meshview-3D2D.py

Thank you. This sure seems like it will solve my problem. But is this a part of the 2019 stable version of FEniCS? Because I have it and it says this function doesn’t exist.

No, it is part of the master branch of fenics, Which can be installed with either docker (the dev/lastest image) or with apt-get as explained in this post No module named 'dolfin' ubuntu 20.04

Thank you again Dokken. We are trying to get this to work on a cluster through Singularity. Our cluster expert has tried building from multiple branches that include meshview, including the latest ‘master’ branch, and ‘cecile/mixed-dimensional’ , they fail at an identical place while compiling dolfi…

You sure you’ve got the right version of FFC (and implicity ufc)?

We have tried a few different iterations with the same results, but perhaps it’s not picking up the correct version. pip3 install fenics">=2019.1.0,<2019.2.0" As well as: add-apt-repository ppa:fenics-packages/fenics && \ apt-get update && \ apt-get -y install fenics pip3 install fenics Do yo…

Why are you installing fenics with pip3? I have made a script below that shows the minimal instructions you need (Using a clean ubuntu 20.04 container) docker run -it --rm ubuntu:20.04 apt-get update apt-get install -y sudo sudo apt-get install -y software-properties-common sudo add-apt-reposi…

Hello, I’ve been working with nami attempting to install fenics with multimesh on our hpc cluster. Thank you for the support to date. Due to kernel compatibility issues, we’re running rhel6, the latest ubuntu we’re able to containerize is xenial (16.04). I tried the suggested steps and installed f…

If you use singularity, can’t you use singularity and docker images? [image] Singularity and Docker | Singularity with this image: [image] Quay

In general, yes, however the fenics docker image is based off of a kernel that is too new for our rhel6 compute nodes.

Use of Submesh in parallel

lewis December 2, 2020, 11:47pm 14

Which fenics branch should I pull to include meshview? I tried ‘2019.1.0.post0’ but it doesn’t seem to include it and ‘cecile/mixed-dimensional’ is still giving me compile errors.

Problem with interpolating and mixed function over a submesh in parallel

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Defining subdomain variational formulation	6	945	June 18, 2020
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Use of Submesh in parallel

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