Coverage for pySDC/projects/Monodomain/hooks/HookClass_post_iter_info.py: 100%

1import time 

2from pySDC.core.Hooks import hooks 

3 

4 

5class post_iter_info_hook(hooks): 

6 """ 

7 Hook class to write additional iteration information to the command line. 

8 It is used to print the final residual, after u[0] has been updated with the new value from the previous step. 

9 This residual is the one used to check the convergence of the iteration and when running in parallel is different from 

10 the one printed at IT_FINE. 

11 """ 

12 

13 def __init__(self): 

14 super(post_iter_info_hook, self).__init__() 

15 

16 def post_iteration(self, step, level_number): 

17 """ 

18 Overwrite default routine called after each iteration. 

19 It calls the default routine and then writes the residual to the command line. 

20 We call this the residual at IT_END. 

21 """ 

22 super().post_iteration(step, level_number) 

23 self.__t1_iteration = time.perf_counter() 

24 

25 L = step.levels[level_number] 

26 

27 self.logger.info( 

28 "Process %2i on time %8.6f at stage %15s: ----------- Iteration: %2i --------------- " "residual: %12.8e", 

29 step.status.slot, 

30 L.time, 

31 "IT_END", 

32 step.status.iter, 

33 L.status.residual, 

34 )