> On 18 Oct 2018, at 19:37, Max Orok <[email protected]> wrote: > > Hello all, > > I am trying to model a large, tricky problem in Gmsh. > Smaller cases succeed individually but larger cases are much more difficult. > Does anyone have tips on "all-out" extreme meshing for cases that seem > intractable? > > The small files start with "test_tube_with_stopper" and the larger files > start with "test_tube_small_box" > > A brep is attached for the large case as the Boolean Delete took around 5 > hours! It was sped up by setting the option "Geometry.OCCParallel=1" however. >
Boolean operations in OpenCASCADE can indeed become quite slow for large models. There's not much we can do about this, except switching to a more efficient CAD kernel. We have plans to natively support Parasolid in the future; unfortunately this won't be available as open source, due to Parasolid licensing constraints. To speed up the meshing part, recompile Gmsh from source with -DENABLE_OPENMP=1. You can then specify the number of threads for 1D and 2D meshing with the "-nt" command line option. Parallel 3D meshing will be coming soon. Christophe > Thank you for your time! > > Sincerely, > Max > -- > Max Orok > Contractor > www.mevex.com > > > test_tube_small_box_w_air.brep > test_tube_small_box_w_air.geo > test_tube_small_box_w_air.stp > > <test_tube_with_stopper.geo><test_tube_with_stopper.stp>_______________________________________________ > gmsh mailing list > [email protected] > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine Free software: http://gmsh.info | http://getdp.info | http://onelab.info _______________________________________________ gmsh mailing list [email protected] http://onelab.info/mailman/listinfo/gmsh
