format training logging

deepmd/loggers/loggers.py

@@ -29,14 +29,14 @@
 )
 CFORMATTER = logging.Formatter(
     #    "%(app_name)s %(levelname)-7s |-> %(name)-45s %(message)s"
-    "%(app_name)s %(levelname)-7s %(message)s"
+    "[%(asctime)s] %(app_name)s %(levelname)-7s %(message)s"
 )
 FFORMATTER_MPI = logging.Formatter(
     "[%(asctime)s] %(app_name)s rank:%(rank)-2s %(levelname)-7s %(name)-45s %(message)s"
 )
 CFORMATTER_MPI = logging.Formatter(
     #    "%(app_name)s rank:%(rank)-2s %(levelname)-7s |-> %(name)-45s %(message)s"
-    "%(app_name)s rank:%(rank)-2s %(levelname)-7s %(message)s"
+    "[%(asctime)s] %(app_name)s rank:%(rank)-2s %(levelname)-7s %(message)s"
 )
 
 

deepmd/loggers/training.py

@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: LGPL-3.0-or-later
+from typing import (
+    Dict,
+    Optional,
+)
+
+
+def format_training_message(
+    batch: int,
+    wall_time: float,
+):
+    """Format a training message."""
+    return f"batch {batch:7d}: " f"total wall time = {wall_time:.2f} s"
+
+
+def format_training_message_per_task(
+    batch: int,
+    task_name: str,
+    rmse: Dict[str, float],
+    learning_rate: Optional[float],
+):
+    if task_name:
+        task_name += ": "
+    if learning_rate is None:
+        lr = ""
+    else:
+        lr = f", lr = {learning_rate:8.2e}"
+    # sort rmse
+    rmse = dict(sorted(rmse.items()))
+    return (
+        f"batch {batch:7d}: {task_name}"
+        f"{', '.join([f'{kk} = {vv:8.2e}' for kk, vv in rmse.items()])}"
+        f"{lr}"
+    )

deepmd/pt/train/training.py

@@ -19,6 +19,10 @@
 from deepmd.common import (
     symlink_prefix_files,
 )
+from deepmd.loggers.training import (
+    format_training_message,
+    format_training_message_per_task,
+)
 from deepmd.pt.loss import (
     DenoiseLoss,
     EnergyStdLoss,
@@ -656,33 +660,24 @@
             # Log and persist
             if _step_id % self.disp_freq == 0:
                 self.wrapper.eval()
-                msg = f"step={_step_id}, lr={cur_lr:.2e}"
 
                 def log_loss_train(_loss, _more_loss, _task_key="Default"):
                     results = {}
-                    if not self.multi_task:
-                        suffix = ""
-                    else:
-                        suffix = f"_{_task_key}"
-                    _msg = f"loss{suffix}={_loss:.4f}"
                     rmse_val = {
                         item: _more_loss[item]
                         for item in _more_loss
                         if "l2_" not in item
                     }
                     for item in sorted(rmse_val.keys()):
-                        _msg += f", {item}_train{suffix}={rmse_val[item]:.4f}"
                         results[item] = rmse_val[item]
-                    return _msg, results
+                    return results
 
                 def log_loss_valid(_task_key="Default"):
                     single_results = {}
                     sum_natoms = 0
                     if not self.multi_task:
-                        suffix = ""
                         valid_numb_batch = self.valid_numb_batch
                     else:
-                        suffix = f"_{_task_key}"
                         valid_numb_batch = self.valid_numb_batch[_task_key]
                     for ii in range(valid_numb_batch):
                         self.optimizer.zero_grad()
@@ -707,16 +702,28 @@
                                     single_results.get(k, 0.0) + v * natoms
                                 )
                     results = {k: v / sum_natoms for k, v in single_results.items()}
-                    _msg = ""
-                    for item in sorted(results.keys()):
-                        _msg += f", {item}_valid{suffix}={results[item]:.4f}"
-                    return _msg, results
+                    return results
 
                 if not self.multi_task:
-                    temp_msg, train_results = log_loss_train(loss, more_loss)
-                    msg += "\n" + temp_msg
-                    temp_msg, valid_results = log_loss_valid()
-                    msg += temp_msg
+                    train_results = log_loss_train(loss, more_loss)
+                    valid_results = log_loss_valid()
+                    log.info(
+                        format_training_message_per_task(
+                            batch=_step_id,
+                            task_name="trn",
+                            rmse=train_results,
+                            learning_rate=cur_lr,
+                        )
+                    )
+                    if valid_results is not None:
+                        log.info(
+                            format_training_message_per_task(
+                                batch=_step_id,
+                                task_name="val",
+                                rmse=valid_results,
+                                learning_rate=None,
+                            )
+                        )
                 else:
                     train_results = {_key: {} for _key in self.model_keys}
                     valid_results = {_key: {} for _key in self.model_keys}
@@ -743,13 +750,33 @@
                         valid_msg[_key], valid_results[_key] = log_loss_valid(
                             _task_key=_key
                         )
-                        msg += "\n" + train_msg[_key]
-                        msg += valid_msg[_key]
+                        log.info(
+                            format_training_message_per_task(
+                                batch=_step_id,
+                                task_name=_key + "_trn",
+                                rmse=train_results[_key],
+                                learning_rate=cur_lr,
+                            )
+                        )
+                        if valid_results is not None:
+                            log.info(
+                                format_training_message_per_task(
+                                    batch=_step_id,
+                                    task_name=_key + "_val",
+                                    rmse=valid_results[_key],
+                                    learning_rate=None,
+                                )
+                            )
 
-                train_time = time.time() - self.t0
-                self.t0 = time.time()
-                msg += f", speed={train_time:.2f} s/{self.disp_freq if _step_id else 1} batches"
-                log.info(msg)
+                current_time = time.time()
+                train_time = current_time - self.t0
+                self.t0 = current_time
+                log.info(
+                    format_training_message(
+                        batch=_step_id,
+                        wall_time=train_time,
+                    )
+                )
 
                 if fout:
                     if self.lcurve_should_print_header:

deepmd/tf/train/trainer.py

@@ -23,6 +23,10 @@
 from deepmd.common import (
     symlink_prefix_files,
 )
+from deepmd.loggers.training import (
+    format_training_message,
+    format_training_message_per_task,
+)
 from deepmd.tf.common import (
     data_requirement,
     get_precision,
@@ -774,8 +778,10 @@
                     test_time = toc - tic
                     wall_time = toc - wall_time_tic
                     log.info(
-                        "batch %7d training time %.2f s, testing time %.2f s, total wall time %.2f s"
-                        % (cur_batch, train_time, test_time, wall_time)
+                        format_training_message(
+                            batch=cur_batch,
+                            wall_time=wall_time,
+                        )
                     )
                     # the first training time is not accurate
                     if cur_batch > self.disp_freq or stop_batch < 2 * self.disp_freq:
@@ -959,6 +965,23 @@
                 for k in train_results.keys():
                     print_str += prop_fmt % (train_results[k])
             print_str += "   %8.1e\n" % cur_lr
+            log.info(
+                format_training_message_per_task(
+                    batch=cur_batch,
+                    task_name="trn",
+                    rmse=train_results,
+                    learning_rate=cur_lr,
+                )
+            )
+            if valid_results is not None:
+                log.info(
+                    format_training_message_per_task(
+                        batch=cur_batch,
+                        task_name="val",
+                        rmse=valid_results,
+                        learning_rate=None,
+                    )
+                )
         else:
             for fitting_key in train_results:
                 if valid_results[fitting_key] is not None:
@@ -974,6 +997,23 @@
                     for k in train_results[fitting_key].keys():
                         print_str += prop_fmt % (train_results[fitting_key][k])
                 print_str += "   %8.1e\n" % cur_lr_dict[fitting_key]
+                log.info(
+                    format_training_message_per_task(
+                        batch=cur_batch,
+                        task_name=f"{fitting_key}_trn",
+                        rmse=train_results[fitting_key],
+                        learning_rate=cur_lr_dict[fitting_key],
+                    )
+                )
+                if valid_results is not None:
+                    log.info(
+                        format_training_message_per_task(
+                            batch=cur_batch,
+                            task_name=f"{fitting_key}_val",
+                            rmse=valid_results[fitting_key],
+                            learning_rate=None,
+                        )
+                    )
         fp.write(print_str)
         fp.flush()