code_saturne User's Forum

Hello,
Same issue with CS4 RC1. I solved the problem by reinstalling the OS and the complete CS 3.0.6 & SalomeMeca suite...

I think I cracked something when I installed CS4 RC1 aside to CS3.0.6...

Well, I was too fast to post... Still the same problem, after 4063 iterations.

Hello,

Well if someone can help me it would be nice. I still use CS3.0.6, I remove the undefined and the free inlet and imposed the appropriate flow rates, and for the outlet the flowrate is negative off course, but I still have

Signal SIGFPE (exception en virgule flottante) intercepté !

Pile d'appels :
1: 0x7f38ab026810 <ompi_op_base_sum_double+0x20> (libmpi.so.1)
2: 0x7f38a4569f18 <ompi_coll_tuned_allreduce_intra_recursivedoubling+0x4a8> (mca_coll_tuned.so)
3: 0x7f38aafffeee <PMPI_Allreduce+0x16e> (libmpi.so.1)
4: 0x7f38ac1dc61f <parsom_+0x2f> (libsaturne.so.0)
5: 0x7f38ac3bf972 <vitens_+0x932> (libsaturne.so.0)
6: 0x7f38ac2993b7 <resopv_+0x2247> (libsaturne.so.0)
7: 0x7f38ac272603 <navstv_+0x2e03> (libsaturne.so.0)
8: 0x7f38ac2aba00 <tridim_+0x43e0> (libsaturne.so.0)
9: 0x7f38ac18d257 <caltri_+0x2e87> (libsaturne.so.0)
10: 0x7f38ac164975 <cs_run+0xa35> (libsaturne.so.0)
11: 0x7f38ac163e2a <main+0x14a> (libsaturne.so.0)
12: 0x7f38abb53ec5 <__libc_start_main+0xf5> (libc.so.6)
13: 0x400789 <> (cs_solver)
Fin de la pile

after 1014 iterations... for reminder I reinstall everything properly using the automatic installation from a new Xubuntu 14.04 new installation... I am quite lost.

Ok, even if the system was balanced in terms of mass flow, I removed the outlet flow rate, and leave at it should be : free outlet. Even if this is not my real case as I am dealing with exhaust flow rate and the intlet flow rate is a conséquence... In this case the calculation goes to the end of the process (8000 iterations). So the solver at one moment does not like to have either an overconstraint problem even if balanced, and it does not like as well to have a free inlet. I have difficulties to understand why it crashes after a while instead of at the begining of the calculation.

Now that my problem is solved I have to deal with CS4 installation as it does not goes beyon first iteration, but this is another topic.