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( 

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

27 ) 

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

29 

30 return vars(parser.parse_args()) 

31 

32 

33def run_experiment(args, config, **kwargs): 

34 import pickle 

35 import os 

36 

37 # from pySDC.implementations.controller_classes.controller_MPI import controller_MPI 

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

55 assert ( 

56 config.comms[0].size == 1 

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

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

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

60 

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

62 

63 config.prepare_caches(prob) 

64 

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

66 

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

68 

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

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

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

72 with open(path, 'wb') as file: 

73 pickle.dump(combined_stats, file) 

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

75 

76 return uend 

77 

78 

79def plot_experiment(args, config): # pragma: no cover 

80 import gc 

81 import matplotlib.pyplot as plt 

82 

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

84 description = config.get_description() 

85 

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

87 

88 comm = config.comm_world 

89 

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

91 try: 

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

93 except FileNotFoundError: 

94 break 

95 

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

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

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

99 

100 if args['mode'] == 'render': 

101 plt.pause(1e-9) 

102 

103 plt.close(fig) 

104 del fig 

105 gc.collect() 

106 

107 

108def plot_series(args, config): # pragma: no cover 

109 import numpy as np 

110 import gc 

111 import matplotlib.pyplot as plt 

112 from pySDC.helpers.plot_helper import figsize_by_journal, setup_mpl 

113 

114 setup_mpl() 

115 

116 fig, axs = plt.subplots( 

117 3, 3, figsize=figsize_by_journal("TUHH_thesis", 1.0, 1.2), sharex=True, sharey=True, layout="compressed" 

118 ) 

119 

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

121 description = config.get_description() 

122 

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

124 

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

126 

127 for idx, ax in zip(idxs, axs.flatten()): 

128 try: 

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

130 except FileNotFoundError: 

131 break 

132 

133 plt.close(_fig) 

134 del _fig 

135 gc.collect() 

136 

137 for ax in axs.flatten(): 

138 if ax != axs[-1, 0]: 

139 ax.set_xlabel('') 

140 ax.set_ylabel('') 

141 

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

143 fig.savefig(path, dpi=300) 

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

145 plt.show() 

146 

147 

148def make_video(args, config): # pragma: no cover 

149 comm = config.comm_world 

150 if comm.rank > 0: 

151 return None 

152 

153 import subprocess 

154 

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

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

157 

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

159 

160 subprocess.run(cmd) 

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

162 

163 

164if __name__ == '__main__': 

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

166 

167 args = parse_args() 

168 

169 config = get_config(args) 

170 

171 if args['mode'] == 'run': 

172 run_experiment(args, config) 

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

174 plot_experiment(args, config) 

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

176 plot_series(args, config) 

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

178 make_video(args, config)