Hopper_tfm_3d crash,report DT<DT min

MFiX
#1

When I run the Mfix default case Hopper_tfm_3d, after running for a while, the program will report an error,DT<DT min.

error report
error report1823×1279 594 KB

I’m using DMP in parallel,x=1,y=2,x=1.I didn’t change any of the Settings in the case.How can I solve this problem?

#2

I am not able to reproduce. It runs fine on my machine. I am using gnu/8.4.0 and openmpi/4.0.3_gnu8.4. You may need to upgrade your FORTRAN compiler and mpi library.

#3

I recommend GNU Fortran 12, which I use for all development and testing.

What compiler are you using?

Also note that there is some randomization used in particle seeding so results may not be the same from run to run, which adds some difficulty when troubleshooting. Does this crash happen every time or is it sporadic?

#4

I built the solver using the mpi90 compiler. I am running CENTOS 7.9.2009 on an AMD EPYC 7H12 processor. Every time I run this case, I get an error and crash while solving it.

#5

Please go to main menu, click “Submit bug report” and upload the resulting ZIP file