Coverage for pySDC / projects / GPU / run_experiment.py: 0%

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', 'render', 'plot_series', 'video'], 

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_MPI import controller_MPI 

39 from pySDC.implementations.controller_classes.controller_nonMPI import controller_nonMPI 

40 from pySDC.helpers.stats_helper import filter_stats 

41 

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

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

44 

45 description = config.get_description( 

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

47 ) 

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

49 

50 if args['useGPU']: 

51 from pySDC.implementations.hooks.log_timings import GPUTimings 

52 

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

54 

55 # controller = controller_MPI(controller_params, description, config.comms[0]) 

56 assert ( 

57 config.comms[0].size == 1 

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

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

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

61 

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

63 

64 config.prepare_caches(prob) 

65 

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

67 

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

69 

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

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

72 # path = f'/p/project1/ccstma/baumann7/pySDC/pySDC/projects/GPU/data/{config.get_path()}-stats-whole-run.pickle' 

73 with open(path, 'wb') as file: 

74 pickle.dump(combined_stats, file) 

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

76 

77 return uend 

78 

79 

80def plot_experiment(args, config): # pragma: no cover 

81 import gc 

82 import matplotlib.pyplot as plt 

83 

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

85 description = config.get_description() 

86 

87 P = description['problem_class'](**description['problem_params']) 

88 

89 comm = config.comm_world 

90 

91 for idx in range(args['restart_idx'], 9999, comm.size): 

92 try: 

93 fig = config.plot(P=P, idx=idx + comm.rank, n_procs_list=args['procs']) 

94 except FileNotFoundError: 

95 break 

96 

97 path = f'simulation_plots/{config.get_path(ranks=[0,0,0])}-{idx+comm.rank:06d}.png' 

98 fig.savefig(path, dpi=300, bbox_inches='tight') 

99 print(f'{comm.rank} Stored figure {path!r}', flush=True) 

100 

101 if args['mode'] == 'render': 

102 plt.pause(1e-9) 

103 

104 plt.close(fig) 

105 del fig 

106 gc.collect() 

107 

108 

109def plot_series(args, config): # pragma: no cover 

110 import numpy as np 

111 import gc 

112 import matplotlib.pyplot as plt 

113 from pySDC.helpers.plot_helper import figsize_by_journal, setup_mpl 

114 

115 setup_mpl() 

116 

117 fig, axs = plt.subplots( 

118 3, 3, figsize=figsize_by_journal("TUHH_thesis", 1.0, 1.2), sharex=True, sharey=True, layout="compressed" 

119 ) 

120 

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

122 description = config.get_description() 

123 

124 P = description['problem_class'](**description['problem_params']) 

125 

126 idxs = np.linspace(0, config.num_frames * 0.9, 9, dtype=int) 

127 

128 for idx, ax in zip(idxs, axs.flatten(), strict=True): 

129 try: 

130 _fig = config.plot(P=P, idx=idx, n_procs_list=args['procs'], ax=ax) 

131 except FileNotFoundError: 

132 break 

133 

134 plt.close(_fig) 

135 del _fig 

136 gc.collect() 

137 

138 for ax in axs.flatten(): 

139 if ax != axs[-1, 0]: 

140 ax.set_xlabel('') 

141 ax.set_ylabel('') 

142 

143 path = f'plots/{config.get_path(ranks=[0,0,0])}-series.pdf' 

144 fig.savefig(path, dpi=300) 

145 print(f'Stored figure {path!r}', flush=True) 

146 plt.show() 

147 

148 

149def make_video(args, config): # pragma: no cover 

150 comm = config.comm_world 

151 if comm.rank > 0: 

152 return None 

153 

154 import subprocess 

155 

156 path = f'simulation_plots/{config.get_path(ranks=[0,0,0])}-%06d.png' 

157 path_target = f'videos/{args["config"]}.mp4' 

158 

159 cmd = f'ffmpeg -i {path} -pix_fmt yuv420p -r 9 -s 2048:1536 -y {path_target}'.split() 

160 

161 subprocess.run(cmd) 

162 print(f'Made video {path_target!r}') 

163 

164 

165if __name__ == '__main__': 

166 from pySDC.projects.GPU.configs.base_config import get_config 

167 

168 args = parse_args() 

169 

170 config = get_config(args) 

171 

172 if args['mode'] == 'run': 

173 run_experiment(args, config) 

174 elif args['mode'] in ['plot', 'render']: # pragma: no cover 

175 plot_experiment(args, config) 

176 elif args['mode'] == 'plot_series': # pragma: no cover 

177 plot_series(args, config) 

178 elif args['mode'] == 'video': # pragma: no cover 

179 make_video(args, config)