Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-10 Thread Timo Heister
> I'm going to refingure my deal.ii to this. Hopefully I can migrate all my > design to this asap. I'm sure I can report you some performance analysis etc > later on. That would be interesting to see. Keep in mind that this is still quite far from being usable, though. Right now I can create mesh

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-10 Thread Yi-Chung Chen
Thank you, Timo. I'm going to refingure my deal.ii to this. Hopefully I can migrate all my design to this asap. I'm sure I can report you some performance analysis etc later on. Regards YC Chen On Thursday, February 9, 2017 at 9:33:05 PM UTC, Timo Heister wrote: > > see > https://urldefense.

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-10 Thread Yi-Chung Chen
Hi Wolfgang, Thank you for reply. Unfortunately, google does not allow me to attach large meshes here (file is too big? > 300MB for a 3D mesh with dofs 2.5M in .msh). Is there any other way? I would like to share it with you. Here I attach the website of our project here, MTA

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-09 Thread Timo Heister
see https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_dealii_dealii_pull_3956&d=CwIBaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=Kumuf8l3Od3XM93KDoNo2AFeuWqKbGvpUufysXzdnAE&s=847Vw5LGq1DTVk1pUvZNIpjoFirAOxRIkxnlS0VHYC8&e= for the

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-08 Thread Timo Heister
> Are you willing to share that code, Timo? Yes, we will be creating a PR for that soon. > I suspect that if implemented right, it should not be terribly difficult to > do refinement of the mesh, but because you can't repartition the coarse > mesh, it will quickly become unbalanced if processors

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-07 Thread Wolfgang Bangerth
Yi-Chung, I'm willing to work on this part. Please let me know how should I start it. I believe this code will help the community. No doubt! Thank you for your offer of help! I'm going to comment in more detail below, but will point out that for all major development, it is always helpful to

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-07 Thread Wolfgang Bangerth
Timo (and Yi-Chung): One of my students is working on the initial step to get towards being able to handle very large distributed triangulations. The main limitation will be (for now), that the partitioning is static and needs to happen in an offline process (so you can't really

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-02 Thread Yi-Chung Chen
Hi Timo, Thank you for your information. On Wednesday, February 1, 2017 at 6:38:23 PM UTC, Timo Heister wrote: > > > I believe that it would not be impossible to develop this, but it will > probably not be a small exercise. You would have to develop a fair share of > code, and gain an understa

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-02 Thread Yi-Chung Chen
Hi Wolfgang, On Tuesday, January 31, 2017 at 10:57:35 PM UTC, Wolfgang Bangerth wrote: > > > Yi-Chung, > > > Thank you for your prompt reply. I was wondeirng if I can integrate > > other partition tools, such as metis or parmetis to handle the fully > > distributed triangulation. I can develo

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-01 Thread Timo Heister
> I believe that it would not be impossible to develop this, but it will > probably not be a small exercise. You would have to develop a fair share of > code, and gain an understanding of parts of the library you don't usually get > to see if you use deal.II. > > If you're willing to do this, we

Re: [deal.II] Fully distributed triangulation (level 0)

2017-01-31 Thread Wolfgang Bangerth
Yi-Chung, Thank you for your prompt reply. I was wondeirng if I can integrate other partition tools, such as metis or parmetis to handle the fully distributed triangulation. I can develop that part by myself (or with some help from the community). Do you have any suggestions? I believe that i

Re: [deal.II] Fully distributed triangulation (level 0)

2017-01-31 Thread Yi-Chung Chen
Hi Wolfgang, Thank you for your prompt reply. I was wondeirng if I can integrate other partition tools, such as metis or parmetis to handle the fully distributed triangulation. I can develop that part by myself (or with some help from the community). Do you have any suggestions? My following

Re: [deal.II] Fully distributed triangulation (level 0)

2017-01-31 Thread Wolfgang Bangerth
YC, I have a project requiring to read in a large coarse mesh from gmsh to deal.ii 1M dofs. Most of cells have their own characteristics, which means I cannot combine them and create a coarse mesh. Currently, I implemented it by using shared memory triangulation for parallelization. Since I w

[deal.II] Fully distributed triangulation (level 0)

2017-01-31 Thread Yi-Chung Chen
Hi all, I have a project requiring to read in a large coarse mesh from gmsh to deal.ii > 1M dofs. Most of cells have their own characteristics, which means I cannot combine them and create a coarse mesh. Currently, I implemented it by using shared memory triangulation for parallelization. S