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import os |
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import sys |
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import time |
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import glob |
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import h5py |
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import logging |
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import argparse |
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import numpy as np |
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from icecream import ic |
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from collections import OrderedDict |
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import torch |
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import torchvision |
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import torch.nn as nn |
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import torch.distributed as dist |
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sys.path.append(os.path.dirname(os.path.realpath(__file__)) + '/../') |
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from my_utils.YParams import YParams |
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from my_utils.data_loader import get_data_loader |
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from my_utils import logging_utils |
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logging_utils.config_logger() |
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def load_model(model, params, checkpoint_file): |
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model.zero_grad() |
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checkpoint_fname = checkpoint_file |
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checkpoint = torch.load(checkpoint_fname) |
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try: |
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new_state_dict = OrderedDict() |
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for key, val in checkpoint['model_state'].items(): |
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name = key[7:] |
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if name != 'ged': |
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new_state_dict[name] = val |
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model.load_state_dict(new_state_dict) |
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except: |
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model.load_state_dict(checkpoint['model_state']) |
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model.eval() |
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return model |
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def setup(params): |
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device = torch.cuda.current_device() if torch.cuda.is_available() else 'cpu' |
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valid_data_loader, valid_dataset = get_data_loader(params, params.test_data_path, dist.is_initialized(), train=False) |
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img_shape_x = valid_dataset.img_shape_x |
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img_shape_y = valid_dataset.img_shape_y |
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params.img_shape_x = img_shape_x |
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params.img_shape_y = img_shape_y |
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in_channels = np.array(params.in_channels) |
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out_channels = np.array(params.out_channels) |
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n_in_channels = len(in_channels) |
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n_out_channels = len(out_channels) |
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params['N_in_channels'] = n_in_channels |
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params['N_out_channels'] = n_out_channels |
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if params.normalization == 'zscore': |
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params.means = np.load(params.global_means_path) |
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params.stds = np.load(params.global_stds_path) |
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if params.nettype == 'OneForecast': |
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from models.OneForecast import OneForecast as model |
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else: |
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raise Exception("not implemented") |
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checkpoint_file = params['best_checkpoint_path'] |
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logging.info('Loading trained model checkpoint from {}'.format(checkpoint_file)) |
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model = model(params).to(device) |
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model = load_model(model, params, checkpoint_file) |
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model = model.to(device) |
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files_paths = glob.glob(params.test_data_path + "/*.h5") |
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files_paths.sort() |
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yr = 0 |
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logging.info('Loading inference data') |
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logging.info('Inference data from {}'.format(files_paths[yr])) |
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valid_data_full = h5py.File(files_paths[yr], 'r')['fields'] |
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return valid_data_full, model |
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def autoregressive_inference(params, init_condition, valid_data_full, model): |
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icd = int(init_condition) |
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device = torch.cuda.current_device() if torch.cuda.is_available() else 'cpu' |
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exp_dir = params['experiment_dir'] |
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dt = int(params.dt) |
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prediction_length = int(params.prediction_length/dt) |
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n_history = params.n_history |
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img_shape_x = params.img_shape_x |
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img_shape_y = params.img_shape_y |
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in_channels = np.array(params.in_channels) |
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out_channels = np.array(params.out_channels) |
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atmos_channels = np.array(params.atmos_channels) |
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n_in_channels = len(in_channels) |
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n_out_channels = len(out_channels) |
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seq_real = torch.zeros((prediction_length, n_out_channels, 120, 240)) |
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seq_pred = torch.zeros((prediction_length, n_out_channels, 120, 240)) |
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print('seq_real.shape', seq_real.shape, 'seq_pred.shape', seq_pred) |
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valid_data = valid_data_full[icd:(icd+prediction_length*dt+n_history*dt):dt][:, params.in_channels][:, :, :120, :] |
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valid_data = np.nan_to_num(valid_data, nan=0) |
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logging.info(f'valid_data_full: {valid_data_full.shape}') |
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logging.info(f'valid_data: {valid_data.shape}') |
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if params.normalization == 'zscore': |
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valid_data = (valid_data - params.means[:,params.in_channels])/params.stds[:,params.in_channels] |
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valid_data = torch.as_tensor(valid_data, dtype=torch.float64) |
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logging.info('Begin autoregressive inference') |
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with torch.no_grad(): |
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for i in range(valid_data.shape[0]): |
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if i==0: |
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first = valid_data[0:n_history+1] |
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ic(valid_data.shape, first.shape) |
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future = valid_data[n_history+1] |
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ic(future.shape) |
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for h in range(n_history+1): |
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seq_real[h] = first[h*n_in_channels : (h+1)*n_in_channels, :] |
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seq_pred[h] = seq_real[h] |
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first = first.to(device, dtype=torch.float) |
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future_pred = model(first) |
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else: |
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if i < prediction_length-1: |
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future = valid_data[n_history+i+1] |
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inf_one_step_start = time.time() |
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future_pred = model(future_pred.to(device, dtype=torch.float)) |
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inf_one_step_time = time.time() - inf_one_step_start |
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logging.info(f'inference one step time: {inf_one_step_time}') |
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if i < prediction_length - 1: |
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seq_pred[n_history+i+1] = future_pred |
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seq_real[n_history+i+1] = future[:] |
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print('mse', (future_pred.to(device, dtype=torch.float) - future[:].to(device, dtype=torch.float)) ** 2) |
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history_stack = seq_pred[i+1:i+2+n_history] |
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future_pred = history_stack |
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pred = torch.unsqueeze(seq_pred[i], 0) |
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tar = torch.unsqueeze(seq_real[i], 0) |
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seq_real = seq_real * params.stds[:,params.out_channels] + params.means[:,params.out_channels] |
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seq_real = seq_real.numpy() |
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seq_pred = seq_pred * params.stds[:,params.out_channels] + params.means[:,params.out_channels] |
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seq_pred = seq_pred.numpy() |
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return (np.expand_dims(seq_real[n_history:], 0), |
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np.expand_dims(seq_pred[n_history:], 0), |
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) |
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if __name__ == '__main__': |
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parser = argparse.ArgumentParser() |
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parser.add_argument("--exp_dir", default='./exp', type=str) |
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parser.add_argument("--config", default='OneForecast', type=str) |
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parser.add_argument("--run_num", default='00', type=str) |
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parser.add_argument("--prediction_length", default=41, type=int) |
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parser.add_argument("--finetune_dir", default='', type=str) |
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parser.add_argument("--ics_type", default='default', type=str) |
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parser.add_argument("--year", default=2012, type=int) |
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args = parser.parse_args() |
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config_path = os.path.join(args.exp_dir, args.config, args.run_num, 'config.yaml') |
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params = YParams(config_path, args.config) |
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params['resuming'] = False |
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params['interp'] = 0 |
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params['world_size'] = 1 |
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params['local_rank'] = 0 |
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params['prediction_length'] = args.prediction_length |
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params['year'] = args.year |
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params['ics_type'] = args.ics_type |
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params['multi_steps_finetune'] = 1 |
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torch.cuda.set_device(0) |
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torch.backends.cudnn.benchmark = True |
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if args.finetune_dir == '': |
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script_dir = os.path.dirname(os.path.abspath(__file__)) |
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exp_dir_path = os.path.join(script_dir, params.exp_dir) |
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expDir = os.path.join(exp_dir_path, args.config, str(args.run_num)) |
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else: |
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script_dir = os.path.dirname(os.path.abspath(__file__)) |
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exp_dir_path = os.path.join(script_dir, params.exp_dir) |
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expDir = os.path.join(exp_dir_path, args.config, str(args.run_num), args.finetune_dir) |
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logging.info(f'expDir: {expDir}') |
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params['experiment_dir'] = expDir |
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params['best_checkpoint_path'] = os.path.join(expDir, 'training_checkpoints/best_ckpt.tar') |
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logging_utils.log_to_file(logger_name=None, log_filename=os.path.join(expDir, 'inference.log')) |
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logging_utils.log_versions() |
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params.log() |
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if params["ics_type"] == 'default': |
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ics = np.arange(0, 1300, 1) |
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n_ics = len(ics) |
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print('init_condition:', ics) |
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logging.info("Inference for {} initial conditions".format(n_ics)) |
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valid_data_full, model = setup(params) |
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seq_pred = [] |
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seq_real = [] |
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for i, ic_ in enumerate(ics): |
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logging.info("Initial condition {} of {}".format(i+1, n_ics)) |
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seq_real, seq_pred = autoregressive_inference(params, ic_, valid_data_full, model) |
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prediction_length = seq_real[0].shape[0] |
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n_out_channels = seq_real[0].shape[1] |
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img_shape_x = seq_real[0].shape[2] |
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img_shape_y = seq_real[0].shape[3] |
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save_path = os.path.join(params['experiment_dir'], 'results.h5') |
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logging.info("Saving to {}".format(save_path)) |
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print(f'saving to {save_path}') |
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if i==0: |
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f = h5py.File(save_path, 'w') |
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f.create_dataset( |
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"ground_truth", |
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data=seq_real, |
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maxshape=[None, prediction_length, n_out_channels, img_shape_x, img_shape_y], |
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dtype=np.float32) |
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f.create_dataset( |
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"predicted", |
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data=seq_pred, |
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maxshape=[None, prediction_length, n_out_channels, img_shape_x, img_shape_y], |
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dtype=np.float32) |
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f.close() |
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else: |
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f = h5py.File(save_path, 'a') |
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f["ground_truth"].resize((f["ground_truth"].shape[0] + 1), axis = 0) |
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f["ground_truth"][-1:] = seq_real |
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f["predicted"].resize((f["predicted"].shape[0] + 1), axis = 0) |
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f["predicted"][-1:] = seq_pred |
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f.close() |
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