Sorry the last statement is wrong. Leaving partition_agnostic=true with a SerialMesh doesn’t return the same assertion error, but the vector written and the vector read are not the same when I print them. The values seem to be in different order.
Miguel A. Salazar de Troya Graduate Scholar, Lawrence Livermore National Laboratory Ph.D. Candidate, University of Illinois at Urbana-Champaign T1878 Rm: 112 Ext: 2-6411 L-code: 288 On 1/14/16, 9:17 AM, "Salazar De Troya, Miguel" <salazardet...@llnl.gov> wrote: >Leaving partition_agnostic=true gives me the same assertion error on >SerialMesh as well. > >Sincerely, > >Miguel A. Salazar de Troya >Graduate Scholar, Lawrence Livermore National Laboratory >Ph.D. Candidate, University of Illinois at Urbana-Champaign >T1878 >Rm: 112 >Ext: 2-6411 >L-code: 288 > > > > >On 1/14/16, 8:24 AM, "Salazar De Troya, Miguel" <salazardet...@llnl.gov> >wrote: > >>In that case, what would be the compatible way to restart the mesh if I >>still leave partition_agnostic=false? What would be the way to fix the >>code? Leaving partition_agnostic=true doesn¹t avoid the assertion either >>for me. >> >>Sincerely, >> >>Miguel A. Salazar de Troya >>Graduate Scholar, Lawrence Livermore National Laboratory >>Ph.D. Candidate, University of Illinois at Urbana-Champaign >>T1878 >>Rm: 112 >>Ext: 2-6411 >>L-code: 288 >> >> >> >> >>On 1/13/16, 3:08 PM, "Roy Stogner" <royst...@ices.utexas.edu> wrote: >> >>> >>>On Wed, 13 Jan 2016, Roy Stogner wrote: >>> >>>> On Tue, 12 Jan 2016, Salazar De Troya, Miguel wrote: >>>> >>>>> I¹m attaching a simple code that illustrates the problem. I open a >>>>> mesh (l_problem.xda) and perform a uniform refinement (if I don¹t, >>>>> there are no problems), then I create an ExplicitSystem and assign >>>>> random values to its solution. I print the solution for verification >>>>> purposes. I save both the equation system and the refined mesh. Then >>>>> I rerun the code reading the saved data and the saved mesh and print >>>>> the solution to compare it with the previous run. Running the code >>>>> in parallel, if my mesh is SerialMesh, both solutions coincide, >>>>> however if my mesh is plain Mesh, I get this assertion error: >>>>> >>>>> >>>>> Assertion `cnt < io_buffer.size()' failed. >>>>> >>>>> cnt = 12755 >>>>> >>>>> io_buffer.size() = 12755 >>>>> >>>>> >>>>> The program would be run with the following flags >>>>> >>>>> mpirun n 2 ./program uniref 1 read_sol 0 > output1.txt >>>>> >>>>> >>>>> Rerun: >>>>> >>>>> mpirun n 2 ./program uniref 1 read_sol 1 > output2.txt >>>> >>>> Thanks! >>>> >>>> I can reproduce this with the latest libMesh. I'll see if I can >>>> bisect it. >>> >>>I can't go back far enough to bisect it (it fails the same way with at >>>least 0.9.3), but I've found why I hadn't seen it before: when editing >>>your code to be compatible with 0.9.2.2, I discovered that the failure >>>only occurs when you set partition_agnostic=false in the >>>EquationSystems::write() call. If you tell libMesh not to renumber >>>the restart solution consistently with how it renumbers the restart >>>mesh, I'm not at all surprised when assertions fail afterwards. >>>--- >>>Roy >> >> >>------------------------------------------------------------------------- >>- >>---- >>Site24x7 APM Insight: Get Deep Visibility into Application Performance >>APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>Monitor end-to-end web transactions and take corrective actions now >>Troubleshoot faster and improve end-user experience. Signup Now! >>http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 >>_______________________________________________ >>Libmesh-users mailing list >>Libmesh-users@lists.sourceforge.net >>https://lists.sourceforge.net/lists/listinfo/libmesh-users > ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
