On Thu, 15 Apr 2010, Boyce Griffith wrote:
> > > On 4/15/10 11:27 AM, Roy Stogner wrote: >> What version and configuration of PETSc? > > PETSc 3.0.0-p9 running on OS X 10.5 using gcc 4.4.2 and OpenMPI 1.3.3. > > PETSc was compiled at optimization level -O3 using --with-debugging=0. So the problem is OS, compiler, and MPI implementation independent. Still a slim chance it's PETSc (I've only reproduced it on 3.0.0, couldn't get it to crop up with a brief test using 3.1) but I'd bet it's us. >> I'd appreciate it. Also if you do manage to reproduce the problem in >> a simple test case, let me know. ex21 is currently hard-coded to use >> a 3D L-shaped domain, the error doesn't occur until after a few >> refinement steps, and by that time the size of the send_list (where >> the problem mostly likely is) is up in the thousands and hard to >> examine manually. > > Where is the relevant send_list --- within EquationSystems::reinit()? It's constructed by a DofMap function that gets called from there, and it's used by the failing localize() that also gets called from in there. > This error is cropping up after several refinement steps for me too (usually > many), but the total number of nodes in the problem is not too huge, so it > might be a little easier to diagnose. Thanks. I'm going to add some more parameters to ex21.in, see if this still crops up in 2D or 1D. It was a low priority when I thought it might just be a bug in my PETSc install, but if it's not? I'd been hoping to release a libMesh 0.6.5 soon and this needs to be fixed first. --- Roy ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
