Attempt to read file pointer fplog = nullptr with AWH
Mdp-option 'awh1-equilibrate-histogram=yes' and multiple ranks per simulation leads to segmentation fault. Running a debugger on a core file shows an attempt to write to a null fplog if equilibrateHistogram=True.
#6 Updated by Viveca Lindahl about 1 year ago
Mark Abraham wrote:
It looks like we probably tested AWH with multiple ranks per simulation, but not with -multidir? AFAIK
-multidir walker-0shouldn't run because there's only one replica.
I'm guessing it's the 'awh1-equilibrate-histogram=yes' that isn't tested. The bug is not related to the single-walker multidir afaiu. It's a somewhat "degenerate" case, but should surely not be disallowed (fail), and is convenient for automatically generating a run setup.