The OpenSees Community

Hi,

What is the following error, and how can I fix it?

Warning Mumps Parallel Solver :: Solve(void) -Error 13 returned in substitution dmumps

and after a couple of warnings, job aborts:

Thanks for your help

looks like a memory issue (http://mumps.enseeiht.fr/doc/userguide_4.10.0.pdf) .. how big is the model?

Hi Frank,

All in all, I have 553 nonlinear elements with 2352 cross-sections (integration points), and 100 fibers at each cross-section plus 1728 ShellMITC4.

This is only a 3-story RC building, and I am going to work on larger models!

Thanks for your help,

it's not a large model .. have you tried a different solver in sequential mode to see if it solves the problem (it could be your model is bad)?

Hi Frank,

Yes! I have tried on sequential OpenSees using UmfPack. It works fine, and no problem occurs even if I run it in a loop for 1000 of times. However, sequential approach takes a lot of time. Could it be a systematic problem of our machine?! Others are working on linux, and I am working on Windows. The machine i am running my simulations on has both linux and Windows. However, Windows is not the main OS.

Then again, I would like to emphasize that this problem happens randomly in the loop of analysis. What I mean is that it suns the model for a couple of times, and then such a problem happens. The only different between these analyses are input variables! It is a Sensitivity Analysis.

i think there is an internal problem with Mumps somewhere, i have examples that work and ones that don't .. it only pops up when the Mumps solver is called more than once in a script (say for gravity and then transient) .. if i delete the lines that cause the problems i get a large memory leak and the next error that pops up when we want to use Mumps is that we run out of memory.