Question #662105 on Yade changed: https://answers.launchpad.net/yade/+question/662105
Robert Caulk posted a new comment: Hey Luc, I receive the same error as you after running the simulation out :-( I think this: CHOLMOD warning: matrix not positive definite something went wrong in Cholesky factorization, use LDLt as fallback this time1 suggests improper boundary conditions. So I think you have a problem with one of these: ,boundaryUseMaxMin=[0,0,0,0,0,0] # what is this for? should we have [0,0,1,1,0,0] because of the top and bottom walls? ,wallIds=[-1,-1,1,0,-1,-1] # top wall id=0, bottom wall id=0 I am unsure how boundary conditions should be properly assigned for periodic simulations that do not use 6 walls, but my quick glance at the source code makes me think the -1 for wall ids is preventing yade from adding boundary conditions to those sides of the cube. I will try to look a bit deeper at it this weekend. Cheers, Robert -- You received this question notification because your team yade-users is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
