Coverage for pySDC / projects / RayleighBenard / run_experiment.py: 55%

1def parse_args(): 

2 import argparse 

3 

4 def cast_to_bool(me): 

5 return False if me in ['False', '0', 0] else True 

6 

7 def str_to_procs(me): 

8 procs = me.split('/') 

9 assert len(procs) == 3 

10 return [int(p) for p in procs] 

11 

12 parser = argparse.ArgumentParser() 

13 parser.add_argument('--useGPU', type=cast_to_bool, help='Toggle for GPUs', default=False) 

14 parser.add_argument( 

15 '--mode', 

16 type=str, 

17 help='Mode for this script', 

18 default=None, 

19 choices=['run', 'plot'], 

20 ) 

21 parser.add_argument('--config', type=str, help='Configuration to load', default=None) 

22 parser.add_argument('--restart_idx', type=int, help='Restart from file by index', default=0) 

23 parser.add_argument('--procs', type=str_to_procs, help='Processes in steps/sweeper/space', default='1/1/1') 

24 parser.add_argument('--res', type=int, help='Space resolution along first axis', default=-1) 

25 parser.add_argument('--dt', type=float, help='(Starting) Step size', default=-1) 

26 parser.add_argument( 

27 '--logger_level', type=int, help='Logger level on the first rank in space and in the sweeper', default=15 

28 ) 

29 parser.add_argument('-o', type=str, help='output path', default='./') 

30 

31 return vars(parser.parse_args()) 

32 

33 

34def run_experiment(args, config, **kwargs): 

35 import pickle 

36 import os 

37 

38 from pySDC.implementations.controller_classes.controller_nonMPI import controller_nonMPI 

39 from pySDC.helpers.stats_helper import filter_stats 

40 

41 type(config).base_path = args['o'] 

42 os.makedirs(f'{args["o"]}/data', exist_ok=True) 

43 

44 description = config.get_description( 

45 useGPU=args['useGPU'], MPIsweeper=args['procs'][1] > 1, res=args['res'], dt=args['dt'], **kwargs 

46 ) 

47 controller_params = config.get_controller_params(logger_level=args['logger_level']) 

48 

49 if args['useGPU']: 

50 from pySDC.implementations.hooks.log_timings import GPUTimings 

51 

52 controller_params['hook_class'].append(GPUTimings) 

53 

54 assert ( 

55 config.comms[0].size == 1 

56 ), 'Have not figured out how to do MPI controller with GPUs yet because I need NCCL for that!' 

57 controller = controller_nonMPI(num_procs=1, controller_params=controller_params, description=description) 

58 prob = controller.MS[0].levels[0].prob 

59 

60 u0, t0 = config.get_initial_condition(prob, restart_idx=args['restart_idx']) 

61 

62 config.prepare_caches(prob) 

63 

64 uend, stats = controller.run(u0=u0, t0=t0, Tend=config.Tend) 

65 

66 combined_stats = filter_stats(stats, comm=config.comm_world) 

67 

68 if config.comm_world.rank == config.comm_world.size - 1: 

69 path = f'{config.base_path}/data/{config.get_path()}-stats-whole-run.pickle' 

70 with open(path, 'wb') as file: 

71 pickle.dump(combined_stats, file) 

72 print(f'Stored stats in {path}', flush=True) 

73 

74 return uend 

75 

76 

77if __name__ == '__main__': 

78 from pySDC.projects.RayleighBenard.RBC3D_configs import get_config 

79 

80 args = parse_args() 

81 

82 config = get_config(args) 

83 

84 if args['mode'] == 'run': 

85 run_experiment(args, config) 

86 else: 

87 raise NotImplementedError