set evaluation interval

doc/doc_ch/config.md

@@ -22,7 +22,7 @@
 |      print_batch_step    |    设置打印log间隔         |       10          |                \                 |
 |      save_model_dir      |    设置模型保存路径        |  output/{算法名称}  |                \                 |
 |      save_epoch_step     |    设置模型保存间隔        |       3           |                \                 |
-|      eval_batch_step     |    设置模型评估间隔        |       2000        |                \                 |
+|      eval_batch_step     |    设置模型评估间隔        | 2000 或 [1000, 2000]        | 2000 表示每2000次迭代评估一次，[1000， 2000]表示从1000次迭代开始，每2000次评估一次   |
 |train_batch_size_per_card |  设置训练时单卡batch size    |         256         |                \                 |
 | test_batch_size_per_card |  设置评估时单卡batch size    |         256         |                \                 |
 |      image_shape         |    设置输入图片尺寸        |   [3, 32, 100]    |                \                 |

doc/doc_en/config_en.md

@@ -22,7 +22,7 @@ Take `rec_chinese_lite_train.yml` as an example
 |      print_batch_step    |    Set print log interval         |       10          |                \                 |
 |      save_model_dir      |    Set model save path        |  output/{model_name}  |                \                 |
 |      save_epoch_step     |    Set model save interval        |       3           |                \                 |
-|      eval_batch_step     |    Set the model evaluation interval        |       2000        |                \                 |
+|      eval_batch_step     |    Set the model evaluation interval        |2000 or [1000, 2000] |runing evaluation every 2000 iters or evaluation is run every 2000 iterations after the 1000th iteration  |
 |train_batch_size_per_card |  Set the batch size during training   |         256         |                \                 |
 | test_batch_size_per_card |  Set the batch size during testing    |         256         |                \                 |
 |      image_shape         |    Set input image size        |   [3, 32, 100]    |                \                 |

tools/program.py

@@ -219,6 +219,13 @@ def train_eval_det_run(config, exe, train_info_dict, eval_info_dict):
     epoch_num = config['Global']['epoch_num']
     print_batch_step = config['Global']['print_batch_step']
     eval_batch_step = config['Global']['eval_batch_step']
+    start_eval_step = 0
+    if type(eval_batch_step) == list and len(eval_batch_step) >= 2:
+        start_eval_step = eval_batch_step[0]
+        eval_batch_step = eval_batch_step[1]
+        logger.info(
+            "During the training process, after the {}th iteration, an evaluation is run every {} iterations".
+            format(start_eval_step, eval_batch_step))
     save_epoch_step = config['Global']['save_epoch_step']
     save_model_dir = config['Global']['save_model_dir']
     if not os.path.exists(save_model_dir):
@@ -246,7 +253,7 @@ def train_eval_det_run(config, exe, train_info_dict, eval_info_dict):
                 t2 = time.time()
                 train_batch_elapse = t2 - t1
                 train_stats.update(stats)
-                if train_batch_id > 0 and train_batch_id \
+                if train_batch_id > start_eval_step and train_batch_id \
                     % print_batch_step == 0:
                     logs = train_stats.log()
                     strs = 'epoch: {}, iter: {}, {}, time: {:.3f}'.format(
@@ -286,6 +293,13 @@ def train_eval_rec_run(config, exe, train_info_dict, eval_info_dict):
     epoch_num = config['Global']['epoch_num']
     print_batch_step = config['Global']['print_batch_step']
     eval_batch_step = config['Global']['eval_batch_step']
+    start_eval_step = 0
+    if type(eval_batch_step) == list and len(eval_batch_step) >= 2:
+        start_eval_step = eval_batch_step[0]
+        eval_batch_step = eval_batch_step[1]
+        logger.info(
+            "During the training process, after the {}th iteration, an evaluation is run every {} iterations".
+            format(start_eval_step, eval_batch_step))
     save_epoch_step = config['Global']['save_epoch_step']
     save_model_dir = config['Global']['save_model_dir']
     if not os.path.exists(save_model_dir):
@@ -324,7 +338,7 @@ def train_eval_rec_run(config, exe, train_info_dict, eval_info_dict):
                 train_batch_elapse = t2 - t1
                 stats = {'loss': loss, 'acc': acc}
                 train_stats.update(stats)
-                if train_batch_id > 0 and train_batch_id \
+                if train_batch_id > start_eval_step and train_batch_id \
                     % print_batch_step == 0:
                     logs = train_stats.log()
                     strs = 'epoch: {}, iter: {}, lr: {:.6f}, {}, time: {:.3f}'.format(