Convergence issues

[Emmanuel-324]

I have this adaptivity block in my script

[./Adaptivity]
    initial_adaptivity = 0
    refine_fraction = 0.7
    coarsen_fraction = 0.1
    max_h_level = 1
  [../]

My simulation takes a lot of time to produce any meaningful results. Is there a way i can tune this block for faster results ouput?

[GiudGiud]

Hello

No this is improving accuracy not making things cheaper to run. Do you need adaptivity?

[Emmanuel-324]

You mean it like this

[Variables]
[./nl0]
  solver_sys = nl0
[../]
[./u]
solver_sys = u_sys
[../]

[./v]
solver_sys = v_sys
[../]  

[GiudGiud]

do you have a variable called nl0? why is that there?

[Emmanuel-324]

I thought that was what you meant by this. i do not have nl0 as part of the variables in my original script

you need to specify the nonlinear system in the Variables definitions

[Emmanuel-324]

My job is running relatively faster after using MPI in my submission script. Thanks for the help.