Roberto, you are setting boundary ids only for locally owned cells. I assume this means your constraint matrix will be inconsistent because of that.
Can you check what happens if you use the correct boundary indices on all processors? On Fri, Apr 13, 2018 at 1:42 PM, Roberto Porcù <robbbert...@gmail.com> wrote: > Dear Lucas, > > thanks very much for replying. > I tried to solve the same problem without rotating the domain. I rotated the > problem. > > Unfortunately the issue is still there. > I attach the new images. > I also attach the source code again because I realized that the previous one > had a misplaced bracket > and was giving an error at compile time. I attached the wrong version of the > file. > > Thanks again. > Best, > > Roberto > > > On Friday, April 13, 2018 at 7:54:54 AM UTC-4, Lucas Campos wrote: >> >> Dear Roberto, >> >> I think the problem is that you are using GridTools::transform (via >> GridTools::rotate), in a distributed triangulation. This should not be done, >> as noted here: >> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.dealii.org_8.5.0_doxygen_deal.II_namespaceGridTools.html-23a212e99cf0d923cebfa04f1d23fa60b04&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=pll_qCI8ZY-oMy-zFQG7zFp22DLzRo2a2Ceab7GJi0w&s=1eMxV5ztZtXMT485FFJZjkZ8LwrDi-oe5Ycd-W4Jisk&e= >> >> If this is indeed the root of the issue, I see two options: >> >> 1. Rotate your problem, rather than your triangulation, 90 degrees. >> 2. You can create a temporary local normal triangulation, rotate it, and >> finally copy into the distributed triangulation. That is, something in the >> lines of >> >>>> >>>> Triangulation<2> tri_tmp; >>>> >>>> GridGenerator::hyper_cube_slit(tri_tmp, -1, 1, false); >>>> >>>> GridTools::rotate(-M_PI/2, tri_tmp); >>>> >>>> >>>> triangultion.copy_triangulation(tri_tmp); >>>> >>>> triangulation.refine_global (6); >> >> Bests, >> Lucas >> On Thursday, 12 April 2018 00:54:05 UTC+2, Roberto Porcù wrote: >>> >>> Dear all, >>> >>> in the reply to my first post I forgot the code. >>> I attach it to this reply. >>> >>> Best >>> >>> Roberto P. >>> >>> >>> On Tuesday, February 20, 2018 at 7:27:37 PM UTC-5, Roberto Porcù wrote: >>>> >>>> Dear all, >>>> >>>> I'm solving a linear elasticity problem on a cracked domain created by >>>> means >>>> of the GridGenerator::hyper_cube_slit function. >>>> When I solve it in serial everything works fine. >>>> When I solve it in parallel I get a problem on a node which is on one >>>> of the slit boundaries as it is possible to see from the attached >>>> pictures. >>>> I don't understand why that is happening because I wrote other parallel >>>> codes in deal.II >>>> and everything was always working fine. I've checked my code many times, >>>> also comparing It to the tutorials. >>>> I am supposing there is something related to the slit. >>>> >>>> Thanks in advance, >>>> Roberto > > -- > The deal.II project is located at > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.dealii.org_&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=pll_qCI8ZY-oMy-zFQG7zFp22DLzRo2a2Ceab7GJi0w&s=Ns11WFvY9U3IcCB0ymEKp-tE6Iff3DP8lbDGxOnhCBM&e= > For mailing list/forum options, see > https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_forum_dealii-3Fhl-3Den&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=pll_qCI8ZY-oMy-zFQG7zFp22DLzRo2a2Ceab7GJi0w&s=qVHJw_tDWv64VtypVSFBOXa6ybTVwKCWW2kPJBFfg7A&e= > --- > You received this message because you are subscribed to the Google Groups > "deal.II User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to dealii+unsubscr...@googlegroups.com. > For more options, visit > https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_optout&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=pll_qCI8ZY-oMy-zFQG7zFp22DLzRo2a2Ceab7GJi0w&s=5RwG8zsOEnb0fnEnubbOjcSxVuVxHZHUvkkDs3H09Wo&e=. -- Timo Heister http://www.math.clemson.edu/~heister/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
