diff --git a/log.py b/log.py
new file mode 100644
index 0000000..f3c7e6e
--- /dev/null
+++ b/log.py
@@ -0,0 +1,117 @@
+import datetime
+import json
+import logging
+import os
+import sys
+import time as time_
+from typing import Any
+from typing import Dict
+from typing import Optional
+from typing import Tuple
+from typing import Union
+
+
+def _get_logger():
+    log_level = os.environ.get("LOG_LEVEL", "INFO").upper()
+
+    log = logging.getLogger("__name__")
+    log.setLevel(log_level)
+    log.propagate = False
+
+    node_name = os.getenv("NODE_NAME", "jeeves-hpc-gpu00")
+
+    fmt = f"[%(levelname)s][%(asctime)s][{node_name}][%(filename)s:%(lineno)d:%(process)d] - %(message)s"
+    formatter = logging.Formatter(fmt, datefmt="%Y-%m-%d %H:%M:%S")
+
+    handler = logging.StreamHandler(sys.stdout)
+    handler.setLevel(log_level)
+    handler.setFormatter(formatter)
+
+    log.addHandler(handler)
+
+    return log
+
+
+# 日志句柄
+logger = _get_logger()
+
+
+class LogManager:
+    def __init__(self, path: str):
+        if not os.path.exists(path):
+            os.makedirs(path)
+        self.path = path
+
+        now = self.get_log_time()
+        latest_log: Union[Dict[str, Any], None] = None
+        for _ in range(15):
+            log_name = self.get_log_name(now)
+            if os.path.exists(log_name):
+                with open(log_name, "r") as flog:
+                    lines = flog.readlines()
+                    if lines:
+                        latest_log = json.loads(lines[-1])
+                break
+            now -= datetime.timedelta(days=1)
+
+        if latest_log is None:
+            self.global_token_pass = 0
+        else:
+            self.global_token_pass = latest_log["token pass"]
+
+    def get_log_time(self) -> datetime.datetime:
+        return datetime.datetime.utcnow() + datetime.timedelta(hours=16)
+
+    def get_log_name(self, now: Optional[datetime.datetime] = None):
+        if now is None:
+            now = self.get_log_time()
+        return os.path.join(self.path, "log.%s.txt" % now.strftime("%Y%m%d"))
+
+    def write(
+        self,
+        time: float,
+        iteration: int,
+        loss: float,
+        lr: float,
+        lr_scale: float,
+        time_usage: Dict[str, float],
+        mem_usage: Dict[str, Tuple[float, float]],
+        avg_time: float,
+        token_max: float,
+        token_pass: float,
+        throughout: float,
+        grad_norm: float,
+        mask_max: float,
+        num_gpus: int,
+        task_loss: Dict[str, float],
+        model_inspect: Optional[Any] = None,
+    ):
+        with open(self.get_log_name(), "a") as fp:
+            while True:
+                try:
+                    ret = {
+                        "time": time,
+                        "iter": iteration,
+                        "loss": loss,
+                        "lr": lr,
+                        "lr scale": int(lr_scale),
+                        "time usage": time_usage,
+                        "mem usage": mem_usage,
+                        "avg time (s)": avg_time,
+                        "token/max": token_max,
+                        "token pass": token_pass + self.global_token_pass,
+                        "throughout (token/s)": throughout,
+                        "grad_norm": grad_norm,
+                        "mask/max": mask_max,
+                        "num_gpus": num_gpus,
+                        "task_loss": task_loss,
+                    }
+                    if model_inspect is not None:
+                        ret["model_inspect"] = model_inspect
+                    print(ret)
+                    fp.write(json.dumps(ret) + "\n")
+                    break
+                except Exception as e:
+                    print(e)
+                    print("Error: writing info list!")
+                    time_.sleep(10)