File size: 3,037 Bytes
2251db8 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | import torch
import os
import sys
from pathlib import Path
root_path = Path(__file__).parent.parent
sys.path.append(str(root_path))
import glob
import numpy as np
import h5py
from tqdm import tqdm
from model.fengwu import Fengwu
from onescience.utils.YParams import YParams
from onescience.datapipes.climate import ERA5Datapipe
def get_stats(data_dir, channels):
"""从新版 h5 中读取变量列表与归一化参数（均值/标准差）"""
h5_files = sorted(glob.glob(os.path.join(data_dir, "data", "*.h5")))
with h5py.File(h5_files[0], "r") as f:
ds = f["fields"]
all_variables = [v.decode() if isinstance(v, bytes) else v for v in ds.attrs["variables"]]
mu = f["global_means"][:] # [1, C, 1, 1]
std = f["global_stds"][:]
channel_indices = [all_variables.index(v) for v in channels]
means = mu[:, channel_indices, :, :]
stds = std[:, channel_indices, :, :]
return means, stds
if __name__ == "__main__":
current_path = os.getcwd()
sys.path.append(current_path)
## Model config init
config_file_path = os.path.join(current_path, "conf/config.yaml")
cfg = YParams(config_file_path, "model")
## DataLoader init
cfg_data = YParams(config_file_path, "datapipe")
means, stds = get_stats(cfg_data.dataset.data_dir, cfg_data.dataset.channels)
datapipe = ERA5Datapipe(
dataset_dir=cfg_data.dataset.data_dir,
used_variables=cfg_data.dataset.channels,
used_years=cfg_data.dataset.test_time,
distributed=False,
batch_size=1,
num_workers=4,
)
test_dataloader, _ = datapipe.get_dataloader("test")
ckpt = torch.load(f"{cfg.checkpoint_dir}/model_bak.pth", map_location="cuda:0")
model = Fengwu(img_size=cfg_data.dataset.img_size,
pressure_level=cfg.pressure_level,
embed_dim=cfg.embed_dim,
patch_size=cfg.patch_size,
num_heads=cfg.num_heads,
window_size=cfg.window_size,
).to('cuda:0')
model.load_state_dict(ckpt["model_state_dict"])
model.eval()
os.makedirs('result/output/', exist_ok=True)
print(f"📂 samples will be generated to './result/output/'")
with torch.no_grad():
for data in tqdm(test_dataloader, desc="Inferring testset", unit="batch"):
invar = data[0].to("cuda:0", dtype=torch.float32)
outvar = data[1].to("cuda:0", dtype=torch.float32)
filename = data[4][-1][0]
surface = invar[:, :4, :, :]
z = invar[:, 4:41, :, :]
r = invar[:, 41:78, :, :]
u = invar[:, 78:115, :, :]
v = invar[:, 115:152, :, :]
t = invar[:, 152:189, :, :]
surface_p, z_p, r_p, u_p, v_p, t_p = model(surface, z, r, u, v, t)
pred_var = torch.concat([surface_p, z_p, r_p, u_p, v_p, t_p], dim=1).cpu().numpy()
pred_var = pred_var * stds + means
np.save(f"result/output/{filename}.npy", pred_var)
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