From: Roy Stogner <roystgnr@ic...>  20111215 14:36:10

I can't seem to reproduce it easily, myself! BuildBot is showing a failure every time with my default build: loadmodules intel tbb mpich2/1.2.1 mklpecos petsc slepc trilinos glpk vtk &&./configure enableeverything but it's showing success with literally every other build I've configured it to try. They're all being run with "LIBMESH_RUN='mpirun np 2'", even. The failing build and the success build seem to differ starting early: FAILURE:  Basis dimension: 5  Performing RB solves on training set Maximum (absolute) error bound is 0.946406 Performing truth solve at parameter: mu[0] = 0 mu[1] = 1 SUCCESS:  Basis dimension: 5  Performing RB solves on training set Maximum (absolute) error bound is 0.946406 Performing truth solve at parameter: mu[0] = 1 mu[1] = 0 but I've no idea what causes the difference.  Roy On Thu, 15 Dec 2011, David Knezevic wrote: > hmm, I can't seem to reproduce this error...? > > > > On 12/14/2011 10:38 PM, Roy Stogner wrote: >> >> We're hitting this with my plain standard enableeverything build, >> too: >> >> ... >> >>  Basis dimension: 19  >> Performing RB solves on training set >> Maximum (absolute) error bound is 0.199127 >> >> Performing truth solve at parameter: >> mu[0] = 0.5 >> mu[1] = 1 >> >> Enriching the RB space >> Updating RB matrices >> >>  Basis dimension: 20  >> Performing RB solves on training set >> Maximum (absolute) error bound is 0.198364 >> >> Maximum number of basis functions reached: Nmax = 20. >> Perform one more Greedy iteration for error bounds. >> Performing truth solve at parameter: >> mu[0] = 1 >> mu[1] = 0.5 >> >> Enriching the RB space >> Updating RB matrices >> >>  Basis dimension: 20  >> Performing RB solves on training set >> Maximum (absolute) error bound is 0.198364 >> >> Extra Greedy iteration finished. >> In RBEvaluation::write_offline_data_to_files, directory eim_data >> already exists, overwriting contents. >> Assertion `theta_q_f[i] != NULL' failed. >> [0] src/reduced_basis/rb_theta_expansion.C, line 89, compiled Dec 14 >> 2011 at 20:58:16 >> terminate called after throwing an instance of 'libMesh::LogicError' >> what(): Error in libMesh internal logic >> make[2]: *** [run] Aborted >> make[2]: Leaving directory >> `/workspace/buildbot/slave/libmeshtrunk/build/examples/reduced_basis/reduced_basis_ex4' > > 