Looking for help running model using gmsh external mesh

[Dschnell232]

Hello,

I have generated multiple external meshes using gmsh and think I have figured out how to generate the mesh, convert it to version 2.2 and then pull the correct files using the python script. I can successfully run the xmeshfem2D command from there.

However, once I run the xspecfem2D command I run into multiple issues. From reviewing the run, it looks like everything goes smoothly until the program gets to the time evolution loop. I am currently trying to work through the following error.

Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation in...
at compute_forces_viscoelastic.F90:675
at iterate_time.F90:284
at specfem2D.F90:411
at specfem2D.F90:379

Does anyone have any advice on how to go about addressing these errors?

Thank you

[Dschnell232]

Update: I have been advised on how to resolve the issue. CFL needed to be reduced by reducing dT.