FAQ

How do I set up the libraries?

If you haven't already, please check out Getting_started#Compiling_libraries.

Sometimes the curl library is necessary, sometimes not. Try commenting adding/commenting out -lcurl

Where do I get initial conditions for a simulation?

The best initial condition is almost always to restart from a run with as similar parameters as possible. See Database.

If such a state-file is not to hand, try utils/ic.f90. Artificial initial conditions tend to suffer far greater transients. Be prepared to use smaller timesteps and possible greater resolution to overcome the transient.

I get 'matrix inversion error 1'

An error in a #define prevented serial use with openpipeflow-1.10, which was a significant update to the double parallelisation! Please update to openpipeflow-1.11 or later in this case.