Added max_sample_ arguments (#10551)

* reverted changes of logging and saving metrics

* added max_sample arguments

* fixed code

* white space diff

* reformetting code

* reformatted code

examples/language-modeling/run_clm.py

@@ -114,6 +114,21 @@ class DataTrainingArguments:
         default=None,
         metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
+
     block_size: Optional[int] = field(
         default=None,
         metadata={
@@ -346,6 +361,7 @@ def main():
     #
     # To speed up this part, we use multiprocessing. See the documentation of the map method for more information:
     # https://huggingface.co/docs/datasets/package_reference/main_classes.html#datasets.Dataset.map
+
     lm_datasets = tokenized_datasets.map(
         group_texts,
         batched=True,
@@ -353,12 +369,26 @@ def main():
         load_from_cache_file=not data_args.overwrite_cache,
     )
 
+    if training_args.do_train:
+        if "train" not in tokenized_datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = lm_datasets["train"]
+        if data_args.max_train_samples is not None:
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+
+    if training_args.do_eval:
+        if "validation" not in tokenized_datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = lm_datasets["validation"]
+        if data_args.max_val_samples is not None:
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+
     # Initialize our Trainer
     trainer = Trainer(
         model=model,
         args=training_args,
-        train_dataset=lm_datasets["train"] if training_args.do_train else None,
-        eval_dataset=lm_datasets["validation"] if training_args.do_eval else None,
+        train_dataset=train_dataset if training_args.do_train else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
         tokenizer=tokenizer,
         # Data collator will default to DataCollatorWithPadding, so we change it.
         data_collator=default_data_collator,
@@ -377,24 +407,28 @@ def main():
 
         metrics = train_result.metrics
 
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
         trainer.log_metrics("train", metrics)
         trainer.save_metrics("train", metrics)
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
 
-        eval_output = trainer.evaluate()
+        metrics = trainer.evaluate()
 
-        perplexity = math.exp(eval_output["eval_loss"])
-        results["perplexity"] = perplexity
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
+        perplexity = math.exp(metrics["eval_loss"])
+        metrics["perplexity"] = perplexity
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
-
-    return results
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
 
 def _mp_fn(index):

examples/language-modeling/run_mlm.py

@@ -146,6 +146,20 @@ class DataTrainingArguments:
             "If False, will pad the samples dynamically when batching to the maximum length in the batch."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
 
     def __post_init__(self):
         if self.dataset_name is None and self.train_file is None and self.validation_file is None:
@@ -380,6 +394,7 @@ def main():
         #
         # To speed up this part, we use multiprocessing. See the documentation of the map method for more information:
         # https://huggingface.co/docs/datasets/package_reference/main_classes.html#datasets.Dataset.map
+
         tokenized_datasets = tokenized_datasets.map(
             group_texts,
             batched=True,
@@ -387,6 +402,20 @@ def main():
             load_from_cache_file=not data_args.overwrite_cache,
         )
 
+    if training_args.do_train:
+        if "train" not in tokenized_datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = tokenized_datasets["train"]
+        if data_args.max_train_samples is not None:
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+
+    if training_args.do_eval:
+        if "validation" not in tokenized_datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = tokenized_datasets["validation"]
+        if data_args.max_val_samples is not None:
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+
     # Data collator
     # This one will take care of randomly masking the tokens.
     data_collator = DataCollatorForLanguageModeling(tokenizer=tokenizer, mlm_probability=data_args.mlm_probability)
@@ -395,8 +424,8 @@ def main():
     trainer = Trainer(
         model=model,
         args=training_args,
-        train_dataset=tokenized_datasets["train"] if training_args.do_train else None,
-        eval_dataset=tokenized_datasets["validation"] if training_args.do_eval else None,
+        train_dataset=train_dataset if training_args.do_train else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
         tokenizer=tokenizer,
         data_collator=data_collator,
     )
@@ -413,24 +442,28 @@ def main():
         trainer.save_model()  # Saves the tokenizer too for easy upload
         metrics = train_result.metrics
 
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
         trainer.log_metrics("train", metrics)
         trainer.save_metrics("train", metrics)
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
 
-        eval_output = trainer.evaluate()
+        metrics = trainer.evaluate()
 
-        perplexity = math.exp(eval_output["eval_loss"])
-        results["perplexity"] = perplexity
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
+        perplexity = math.exp(metrics["eval_loss"])
+        metrics["perplexity"] = perplexity
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
-
-    return results
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
 
 def _mp_fn(index):

examples/language-modeling/run_plm.py

@@ -143,6 +143,20 @@ class DataTrainingArguments:
             "If False, will pad the samples dynamically when batching to the maximum length in the batch."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
 
     def __post_init__(self):
         if self.dataset_name is None and self.train_file is None and self.validation_file is None:
@@ -358,6 +372,7 @@ def main():
         #
         # To speed up this part, we use multiprocessing. See the documentation of the map method for more information:
         # https://huggingface.co/docs/datasets/package_reference/main_classes.html#datasets.Dataset.map
+
         tokenized_datasets = tokenized_datasets.map(
             group_texts,
             batched=True,
@@ -365,6 +380,20 @@ def main():
             load_from_cache_file=not data_args.overwrite_cache,
         )
 
+    if training_args.do_train:
+        if "train" not in tokenized_datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = tokenized_datasets["train"]
+        if data_args.max_train_samples is not None:
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+
+    if training_args.do_eval:
+        if "validation" not in tokenized_datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = tokenized_datasets["validation"]
+        if data_args.max_val_samples is not None:
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+
     # Data collator
     data_collator = DataCollatorForPermutationLanguageModeling(
         tokenizer=tokenizer,
@@ -376,8 +405,8 @@ def main():
     trainer = Trainer(
         model=model,
         args=training_args,
-        train_dataset=tokenized_datasets["train"] if training_args.do_train else None,
-        eval_dataset=tokenized_datasets["validation"] if training_args.do_eval else None,
+        train_dataset=train_dataset if training_args.do_train else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
         tokenizer=tokenizer,
         data_collator=data_collator,
     )
@@ -394,24 +423,28 @@ def main():
         trainer.save_model()  # Saves the tokenizer too for easy upload
         metrics = train_result.metrics
 
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
         trainer.log_metrics("train", metrics)
         trainer.save_metrics("train", metrics)
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
 
-        eval_output = trainer.evaluate()
+        metrics = trainer.evaluate()
 
-        perplexity = math.exp(eval_output["eval_loss"])
-        results["perplexity"] = perplexity
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
+        perplexity = math.exp(metrics["eval_loss"])
+        metrics["perplexity"] = perplexity
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
-
-    return results
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
 
 def _mp_fn(index):

examples/multiple-choice/run_swag.py

@@ -116,6 +116,20 @@ class DataTrainingArguments:
             "efficient on GPU but very bad for TPU."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
 
     def __post_init__(self):
         if self.train_file is not None:
@@ -328,12 +342,31 @@ def main():
         # Un-flatten
         return {k: [v[i : i + 4] for i in range(0, len(v), 4)] for k, v in tokenized_examples.items()}
 
-    tokenized_datasets = datasets.map(
-        preprocess_function,
-        batched=True,
-        num_proc=data_args.preprocessing_num_workers,
-        load_from_cache_file=not data_args.overwrite_cache,
-    )
+    if training_args.do_train:
+        train_dataset = datasets["train"]
+        if "train" not in datasets:
+            raise ValueError("--do_train requires a train dataset")
+        if data_args.max_train_samples is not None:
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+        train_dataset = train_dataset.map(
+            preprocess_function,
+            batched=True,
+            num_proc=data_args.preprocessing_num_workers,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
+
+    if training_args.do_eval:
+        if "validation" not in datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = datasets["validation"]
+        if data_args.max_val_samples is not None:
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+        eval_dataset = eval_dataset.map(
+            preprocess_function,
+            batched=True,
+            num_proc=data_args.preprocessing_num_workers,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
 
     # Data collator
     data_collator = (
@@ -352,8 +385,8 @@ def main():
     trainer = Trainer(
         model=model,
         args=training_args,
-        train_dataset=tokenized_datasets["train"] if training_args.do_train else None,
-        eval_dataset=tokenized_datasets["validation"] if training_args.do_eval else None,
+        train_dataset=train_dataset if training_args.do_train else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
         tokenizer=tokenizer,
         data_collator=data_collator,
         compute_metrics=compute_metrics,
@@ -371,21 +404,25 @@ def main():
         trainer.save_model()  # Saves the tokenizer too for easy upload
         metrics = train_result.metrics
 
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
         trainer.log_metrics("train", metrics)
         trainer.save_metrics("train", metrics)
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
 
-        results = trainer.evaluate()
+        metrics = trainer.evaluate()
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
-
-    return results
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
 
 def _mp_fn(index):

examples/multiple-choice/run_tf_multiple_choice.py

@@ -206,10 +206,14 @@ def main():
 
         result = trainer.evaluate()
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
+        output_eval_file = os.path.join(training_args.output_dir, "eval_results.txt")
+        with open(output_eval_file, "w") as writer:
+            logger.info("***** Eval results *****")
+            for key, value in result.items():
+                logger.info("  %s = %s", key, value)
+                writer.write("%s = %s\n" % (key, value))
 
-        results.update(result)
+            results.update(result)
 
     return results
 

examples/question-answering/run_qa.py

@@ -118,6 +118,20 @@ class DataTrainingArguments:
             "be faster on GPU but will be slower on TPU)."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
     version_2_with_negative: bool = field(
         default=False, metadata={"help": "If true, some of the examples do not have an answer."}
     )
@@ -360,13 +374,23 @@ def main():
         return tokenized_examples
 
     if training_args.do_train:
-        train_dataset = datasets["train"].map(
+        if "train" not in datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = datasets["train"]
+        if data_args.max_train_samples is not None:
+            # We will select sample from whole data if agument is specified
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+        # Create train feature from dataset
+        train_dataset = train_dataset.map(
             prepare_train_features,
             batched=True,
             num_proc=data_args.preprocessing_num_workers,
             remove_columns=column_names,
             load_from_cache_file=not data_args.overwrite_cache,
         )
+        if data_args.max_train_samples is not None:
+            # Number of samples might increase during Feature Creation, We select only specified max samples
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
 
     # Validation preprocessing
     def prepare_validation_features(examples):
@@ -411,13 +435,23 @@ def main():
         return tokenized_examples
 
     if training_args.do_eval:
-        validation_dataset = datasets["validation"].map(
+        if "validation" not in datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = datasets["validation"]
+        if data_args.max_val_samples is not None:
+            # We will select sample from whole data
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+        # Validation Feature Creation
+        eval_dataset = eval_dataset.map(
             prepare_validation_features,
             batched=True,
             num_proc=data_args.preprocessing_num_workers,
             remove_columns=column_names,
             load_from_cache_file=not data_args.overwrite_cache,
         )
+        if data_args.max_val_samples is not None:
+            # During Feature creation dataset samples might increase, we will select required samples again
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
 
     # Data collator
     # We have already padded to max length if the corresponding flag is True, otherwise we need to pad in the data
@@ -462,7 +496,7 @@ def main():
         model=model,
         args=training_args,
         train_dataset=train_dataset if training_args.do_train else None,
-        eval_dataset=validation_dataset if training_args.do_eval else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
         eval_examples=datasets["validation"] if training_args.do_eval else None,
         tokenizer=tokenizer,
         data_collator=data_collator,
@@ -482,20 +516,25 @@ def main():
         trainer.save_model()  # Saves the tokenizer too for easy upload
 
         metrics = train_result.metrics
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
         trainer.log_metrics("train", metrics)
         trainer.save_metrics("train", metrics)
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
-        results = trainer.evaluate()
+        metrics = trainer.evaluate()
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
 
-    return results
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
 
 def _mp_fn(index):

examples/question-answering/run_qa_beam_search.py

@@ -117,6 +117,20 @@ class DataTrainingArguments:
             "be faster on GPU but will be slower on TPU)."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
     version_2_with_negative: bool = field(
         default=False, metadata={"help": "If true, some of the examples do not have an answer."}
     )
@@ -373,13 +387,23 @@ def main():
         return tokenized_examples
 
     if training_args.do_train:
-        train_dataset = datasets["train"].map(
+        if "train" not in datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = datasets["train"]
+        if data_args.max_train_samples is not None:
+            # Select samples from Dataset, This will help to decrease processing time
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+        # Create Training Features
+        train_dataset = train_dataset.map(
             prepare_train_features,
             batched=True,
             num_proc=data_args.preprocessing_num_workers,
             remove_columns=column_names,
             load_from_cache_file=not data_args.overwrite_cache,
         )
+        if data_args.max_train_samples is not None:
+            # Select samples from dataset again since Feature Creation might increase number of features
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
 
     # Validation preprocessing
     def prepare_validation_features(examples):
@@ -448,13 +472,23 @@ def main():
         return tokenized_examples
 
     if training_args.do_eval:
-        validation_dataset = datasets["validation"].map(
+        if "validation" not in datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = datasets["validation"]
+        if data_args.max_val_samples is not None:
+            # Selecting Eval Samples from Dataset
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+        # Create Features from Eval Dataset
+        eval_dataset = eval_dataset.map(
             prepare_validation_features,
             batched=True,
             num_proc=data_args.preprocessing_num_workers,
             remove_columns=column_names,
             load_from_cache_file=not data_args.overwrite_cache,
         )
+        if data_args.max_val_samples is not None:
+            # Selecting Samples from Dataset again since Feature Creation might increase samples size
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
 
     # Data collator
     # We have already padded to max length if the corresponding flag is True, otherwise we need to pad in the data
@@ -501,7 +535,7 @@ def main():
         model=model,
         args=training_args,
         train_dataset=train_dataset if training_args.do_train else None,
-        eval_dataset=validation_dataset if training_args.do_eval else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
         eval_examples=datasets["validation"] if training_args.do_eval else None,
         tokenizer=tokenizer,
         data_collator=data_collator,
@@ -521,20 +555,26 @@ def main():
         trainer.save_model()  # Saves the tokenizer too for easy upload
 
         metrics = train_result.metrics
+
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
         trainer.log_metrics("train", metrics)
         trainer.save_metrics("train", metrics)
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
-        results = trainer.evaluate()
+        metrics = trainer.evaluate()
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
 
-    return results
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
 
 def _mp_fn(index):

examples/seq2seq/run_seq2seq.py

@@ -601,7 +601,6 @@ def main():
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
 
@@ -614,6 +613,7 @@ def main():
         trainer.log_metrics("eval", metrics)
         trainer.save_metrics("eval", metrics)
 
+    # predict
     if training_args.do_predict:
         logger.info("*** Test ***")
 
@@ -640,8 +640,6 @@ def main():
                 with open(output_test_preds_file, "w") as writer:
                     writer.write("\n".join(test_preds))
 
-    return results
-
 
 def _mp_fn(index):
     # For xla_spawn (TPUs)

examples/test_examples.py

@@ -15,6 +15,7 @@
 
 
 import argparse
+import json
 import logging
 import os
 import sys
@@ -64,6 +65,17 @@ def get_setup_file():
     return args.f
 
 
+def get_results(output_dir):
+    results = {}
+    path = os.path.join(output_dir, "all_results.json")
+    if os.path.exists(path):
+        with open(path, "r") as f:
+            results = json.load(f)
+    else:
+        raise ValueError(f"can't find {path}")
+    return results
+
+
 def is_cuda_and_apex_available():
     is_using_cuda = torch.cuda.is_available() and torch_device == "cuda"
     return is_using_cuda and is_apex_available()
@@ -98,7 +110,8 @@ class ExamplesTests(TestCasePlus):
             testargs.append("--fp16")
 
         with patch.object(sys, "argv", testargs):
-            result = run_glue.main()
+            run_glue.main()
+            result = get_results(tmp_dir)
             self.assertGreaterEqual(result["eval_accuracy"], 0.75)
 
     @require_torch_non_multi_gpu_but_fix_me
@@ -130,7 +143,8 @@ class ExamplesTests(TestCasePlus):
             testargs.append("--no_cuda")
 
         with patch.object(sys, "argv", testargs):
-            result = run_clm.main()
+            run_clm.main()
+            result = get_results(tmp_dir)
             self.assertLess(result["perplexity"], 100)
 
     @require_torch_non_multi_gpu_but_fix_me
@@ -156,7 +170,8 @@ class ExamplesTests(TestCasePlus):
             testargs.append("--no_cuda")
 
         with patch.object(sys, "argv", testargs):
-            result = run_mlm.main()
+            run_mlm.main()
+            result = get_results(tmp_dir)
             self.assertLess(result["perplexity"], 42)
 
     @require_torch_non_multi_gpu_but_fix_me
@@ -185,7 +200,8 @@ class ExamplesTests(TestCasePlus):
             testargs.append("--no_cuda")
 
         with patch.object(sys, "argv", testargs):
-            result = run_ner.main()
+            run_ner.main()
+            result = get_results(tmp_dir)
             self.assertGreaterEqual(result["eval_accuracy"], 0.75)
             self.assertGreaterEqual(result["eval_precision"], 0.75)
             self.assertLess(result["eval_loss"], 0.5)
@@ -214,7 +230,8 @@ class ExamplesTests(TestCasePlus):
         """.split()
 
         with patch.object(sys, "argv", testargs):
-            result = run_squad.main()
+            run_squad.main()
+            result = get_results(tmp_dir)
             self.assertGreaterEqual(result["f1"], 30)
             self.assertGreaterEqual(result["exact"], 30)
 
@@ -241,7 +258,8 @@ class ExamplesTests(TestCasePlus):
         """.split()
 
         with patch.object(sys, "argv", testargs):
-            result = run_swag.main()
+            run_swag.main()
+            result = get_results(tmp_dir)
             self.assertGreaterEqual(result["eval_accuracy"], 0.8)
 
     @require_torch_non_multi_gpu_but_fix_me
@@ -288,8 +306,8 @@ class ExamplesTests(TestCasePlus):
         """.split()
 
         with patch.object(sys, "argv", testargs):
-            result = run_seq2seq.main()
-
+            run_seq2seq.main()
+            result = get_results(tmp_dir)
             self.assertGreaterEqual(result["eval_rouge1"], 10)
             self.assertGreaterEqual(result["eval_rouge2"], 2)
             self.assertGreaterEqual(result["eval_rougeL"], 7)
@@ -323,5 +341,6 @@ class ExamplesTests(TestCasePlus):
         """.split()
 
         with patch.object(sys, "argv", testargs):
-            result = run_seq2seq.main()
+            run_seq2seq.main()
+            result = get_results(tmp_dir)
             self.assertGreaterEqual(result["eval_bleu"], 30)

examples/text-classification/run_glue.py

@@ -89,6 +89,27 @@ class DataTrainingArguments:
             "If False, will pad the samples dynamically when batching to the maximum length in the batch."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
+    max_test_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of test examples to this "
+            "value if set."
+        },
+    )
     train_file: Optional[str] = field(
         default=None, metadata={"help": "A csv or a json file containing the training data."}
     )
@@ -353,12 +374,41 @@ def main():
             result["label"] = [(label_to_id[l] if l != -1 else -1) for l in examples["label"]]
         return result
 
-    datasets = datasets.map(preprocess_function, batched=True, load_from_cache_file=not data_args.overwrite_cache)
+    if training_args.do_train:
+        if "train" not in datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = datasets["train"]
+        if data_args.max_train_samples is not None:
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+        train_dataset = train_dataset.map(
+            preprocess_function,
+            batched=True,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
 
-    train_dataset = datasets["train"]
-    eval_dataset = datasets["validation_matched" if data_args.task_name == "mnli" else "validation"]
-    if data_args.task_name is not None or data_args.test_file is not None:
+    if training_args.do_eval:
+        if "validation" not in datasets and "validation_matched" not in datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = datasets["validation_matched" if data_args.task_name == "mnli" else "validation"]
+        if data_args.max_val_samples is not None:
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+        eval_dataset = eval_dataset.map(
+            preprocess_function,
+            batched=True,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
+
+    if training_args.do_predict or data_args.task_name is not None or data_args.test_file is not None:
+        if "test" not in datasets and "test_matched" not in datasets:
+            raise ValueError("--do_predict requires a test dataset")
         test_dataset = datasets["test_matched" if data_args.task_name == "mnli" else "test"]
+        if data_args.max_test_samples is not None:
+            test_dataset = test_dataset.select(range(data_args.max_test_samples))
+        test_dataset = test_dataset.map(
+            preprocess_function,
+            batched=True,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
 
     # Log a few random samples from the training set:
     for index in random.sample(range(len(train_dataset)), 3):
@@ -417,6 +467,10 @@ def main():
 
         train_result = trainer.train(resume_from_checkpoint=checkpoint)
         metrics = train_result.metrics
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
 
         trainer.save_model()  # Saves the tokenizer too for easy upload
 
@@ -425,7 +479,6 @@ def main():
         trainer.save_state()
 
     # Evaluation
-    eval_results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
 
@@ -437,12 +490,13 @@ def main():
             eval_datasets.append(datasets["validation_mismatched"])
 
         for eval_dataset, task in zip(eval_datasets, tasks):
-            eval_result = trainer.evaluate(eval_dataset=eval_dataset)
+            metrics = trainer.evaluate(eval_dataset=eval_dataset)
 
-            trainer.log_metrics("eval", eval_result)
-            trainer.save_metrics("eval", eval_result)
+            max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+            metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
 
-            eval_results.update(eval_result)
+            trainer.log_metrics("eval", metrics)
+            trainer.save_metrics("eval", metrics)
 
     if training_args.do_predict:
         logger.info("*** Test ***")
@@ -471,7 +525,6 @@ def main():
                         else:
                             item = label_list[item]
                             writer.write(f"{index}\t{item}\n")
-    return eval_results
 
 
 def _mp_fn(index):

examples/text-classification/run_tf_glue.py

@@ -247,10 +247,18 @@ def main():
     results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
+
         result = trainer.evaluate()
-        trainer.log_metrics("eval", result)
-        trainer.save_metrics("eval", result)
-        results.update(result)
+        output_eval_file = os.path.join(training_args.output_dir, "eval_results.txt")
+
+        with open(output_eval_file, "w") as writer:
+            logger.info("***** Eval results *****")
+
+            for key, value in result.items():
+                logger.info("  %s = %s", key, value)
+                writer.write("%s = %s\n" % (key, value))
+
+            results.update(result)
 
     return results
 

examples/text-classification/run_tf_text_classification.py

@@ -294,9 +294,16 @@ def main():
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
         result = trainer.evaluate()
-        trainer.log_metrics("eval", result)
-        trainer.save_metrics("eval", result)
-        results.update(result)
+        output_eval_file = os.path.join(training_args.output_dir, "eval_results.txt")
+
+        with open(output_eval_file, "w") as writer:
+            logger.info("***** Eval results *****")
+
+            for key, value in result.items():
+                logger.info("  %s = %s", key, value)
+                writer.write("%s = %s\n" % (key, value))
+
+            results.update(result)
 
     return results
 

examples/text-classification/run_xnli.py

@@ -73,6 +73,27 @@ class DataTrainingArguments:
             "If False, will pad the samples dynamically when batching to the maximum length in the batch."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
+    max_test_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of test examples to this "
+            "value if set."
+        },
+    )
     server_ip: Optional[str] = field(default=None, metadata={"help": "For distant debugging."})
     server_port: Optional[str] = field(default=None, metadata={"help": "For distant debugging."})
 
@@ -238,12 +259,23 @@ def main():
             truncation=True,
         )
 
-    train_dataset = train_dataset.map(
-        preprocess_function, batched=True, load_from_cache_file=not data_args.overwrite_cache
-    )
-    eval_dataset = eval_dataset.map(
-        preprocess_function, batched=True, load_from_cache_file=not data_args.overwrite_cache
-    )
+    if training_args.do_train:
+        if data_args.max_train_samples is not None:
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+        train_dataset = train_dataset.map(
+            preprocess_function,
+            batched=True,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
+
+    if training_args.do_eval:
+        if data_args.max_val_samples is not None:
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+        eval_dataset = eval_dataset.map(
+            preprocess_function,
+            batched=True,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
 
     # Log a few random samples from the training set:
     for index in random.sample(range(len(train_dataset)), 3):
@@ -288,6 +320,10 @@ def main():
             model_path = None
         train_result = trainer.train(model_path=model_path)
         metrics = train_result.metrics
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
 
         trainer.save_model()  # Saves the tokenizer too for easy upload
 
@@ -296,15 +332,15 @@ def main():
         trainer.save_state()
 
     # Evaluation
-    eval_results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
-        eval_result = trainer.evaluate(eval_dataset=eval_dataset)
-        trainer.log_metrics("eval", eval_result)
-        trainer.save_metrics("eval", eval_result)
-        eval_results.update(eval_result)
+        metrics = trainer.evaluate(eval_dataset=eval_dataset)
 
-    return eval_results
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
+
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
 
 if __name__ == "__main__":

examples/token-classification/run_ner.py

@@ -117,6 +117,27 @@ class DataTrainingArguments:
             "efficient on GPU but very bad for TPU."
         },
     )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of training examples to this "
+            "value if set."
+        },
+    )
+    max_val_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of validation examples to this "
+            "value if set."
+        },
+    )
+    max_test_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": "For debugging purposes or quicker training, truncate the number of test examples to this "
+            "value if set."
+        },
+    )
     label_all_tokens: bool = field(
         default=False,
         metadata={
@@ -321,12 +342,44 @@ def main():
         tokenized_inputs["labels"] = labels
         return tokenized_inputs
 
-    tokenized_datasets = datasets.map(
-        tokenize_and_align_labels,
-        batched=True,
-        num_proc=data_args.preprocessing_num_workers,
-        load_from_cache_file=not data_args.overwrite_cache,
-    )
+    if training_args.do_train:
+        if "train" not in datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = datasets["train"]
+        if data_args.max_train_samples is not None:
+            train_dataset = train_dataset.select(range(data_args.max_train_samples))
+        train_dataset = train_dataset.map(
+            tokenize_and_align_labels,
+            batched=True,
+            num_proc=data_args.preprocessing_num_workers,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
+
+    if training_args.do_eval:
+        if "validation" not in datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = datasets["validation"]
+        if data_args.max_val_samples is not None:
+            eval_dataset = eval_dataset.select(range(data_args.max_val_samples))
+        eval_dataset = eval_dataset.map(
+            tokenize_and_align_labels,
+            batched=True,
+            num_proc=data_args.preprocessing_num_workers,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
+
+    if training_args.do_predict:
+        if "test" not in datasets:
+            raise ValueError("--do_predict requires a test dataset")
+        test_dataset = datasets["test"]
+        if data_args.max_test_samples is not None:
+            test_dataset = test_dataset.select(range(data_args.max_test_samples))
+        test_dataset = test_dataset.map(
+            tokenize_and_align_labels,
+            batched=True,
+            num_proc=data_args.preprocessing_num_workers,
+            load_from_cache_file=not data_args.overwrite_cache,
+        )
 
     # Data collator
     data_collator = DataCollatorForTokenClassification(tokenizer, pad_to_multiple_of=8 if training_args.fp16 else None)
@@ -371,8 +424,8 @@ def main():
     trainer = Trainer(
         model=model,
         args=training_args,
-        train_dataset=tokenized_datasets["train"] if training_args.do_train else None,
-        eval_dataset=tokenized_datasets["validation"] if training_args.do_eval else None,
+        train_dataset=train_dataset if training_args.do_train else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
         tokenizer=tokenizer,
         data_collator=data_collator,
         compute_metrics=compute_metrics,
@@ -390,25 +443,31 @@ def main():
         metrics = train_result.metrics
         trainer.save_model()  # Saves the tokenizer too for easy upload
 
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
         trainer.log_metrics("train", metrics)
         trainer.save_metrics("train", metrics)
         trainer.save_state()
 
     # Evaluation
-    results = {}
     if training_args.do_eval:
         logger.info("*** Evaluate ***")
 
-        results = trainer.evaluate()
+        metrics = trainer.evaluate()
 
-        trainer.log_metrics("eval", results)
-        trainer.save_metrics("eval", results)
+        max_val_samples = data_args.max_val_samples if data_args.max_val_samples is not None else len(eval_dataset)
+        metrics["eval_samples"] = min(max_val_samples, len(eval_dataset))
+
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
 
     # Predict
     if training_args.do_predict:
         logger.info("*** Predict ***")
 
-        test_dataset = tokenized_datasets["test"]
         predictions, labels, metrics = trainer.predict(test_dataset)
         predictions = np.argmax(predictions, axis=2)
 
@@ -428,8 +487,6 @@ def main():
                 for prediction in true_predictions:
                     writer.write(" ".join(prediction) + "\n")
 
-    return results
-
 
 def _mp_fn(index):
     # For xla_spawn (TPUs)