!10297 Fix typos in CRNN and remove the support of GPU

From: @c_34
Reviewed-by: @wuxuejian,@liangchenghui
Signed-off-by: @liangchenghui

model_zoo/official/cv/crnn/README.md

@@ -160,15 +160,15 @@ max_text_length": 23,                     # max number of digits in each
 
 ### [Training](#contents)
 
-- Run `run_standalone_train.sh` for non-distributed training of CRNN model, either on Ascend or on GPU.
+- Run `run_standalone_train.sh` for non-distributed training of CRNN model, only support Ascend now.
 
 ``` bash
-bash run_standalone_train.sh [DATASET_NAME] [DATASET_PATH] [PLATFORM]
+bash run_standalone_train.sh [DATASET_NAME] [DATASET_PATH] [PLATFORM](optional)
 ```
 
 #### [Distributed Training](#contents)
 
-- Run `run_distribute_train.sh` for distributed training of WarpCTC model on Ascend.
+- Run `run_distribute_train.sh` for distributed training of CRNN model on Ascend.
 
 ``` bash
 bash run_distribute_train.sh [DATASET_NAME] [RANK_TABLE_FILE] [DATASET_PATH]
@@ -188,7 +188,7 @@ Epoch time: 2743.688s, per step time: 0.097s
 - Run `run_eval.sh` for evaluation.
 
 ``` bash
-bash run_eval.sh [DATASET_NAME] [DATASET_PATH] [CHECKPOINT_PATH] [PLATFORM]
+bash run_eval.sh [DATASET_NAME] [DATASET_PATH] [CHECKPOINT_PATH] [PLATFORM](optional)
 ```
 
 Check the `eval/log.txt` and you will get outputs as following:
@@ -232,7 +232,7 @@ result: {'CRNNAccuracy': (0.806)}
 | Dataset             | SVT                         | IIIT5K                      |
 | batch_size          | 1                           | 1                           |
 | outputs             | ACC                         | ACC                         |
-| Accuracy            | 80.9%                       | 80.6%                       |
+| Accuracy            | 80.8%                       | 79.7%                       |
 | Model for inference | 83M (.ckpt file)            | 83M (.ckpt file)            |
 
 ## [Description of Random Situation](#contents)

model_zoo/official/cv/crnn/scripts/run_eval.sh

@@ -14,8 +14,8 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 4 ]; then
-  echo "Usage: sh run_eval.sh [DATASET_NAME] [DATASET_PATH] [CHECKPOINT_PATH] [PLATFORM]"
+if [ $# != 4 ] && [ $# != 3 ]; then
+  echo "Usage: sh run_eval.sh [DATASET_NAME] [DATASET_PATH] [CHECKPOINT_PATH] [PLATFORM](optional) "
   exit 1
 fi
 
@@ -30,7 +30,12 @@ get_real_path() {
 DATASET_NAME=$1
 PATH1=$(get_real_path $2)
 PATH2=$(get_real_path $3)
-PLATFORM=$4
+
+if [ $# == 4 ]; then
+  PLATFORM=$4
+else
+  PLATFORM="Ascend"
+fi
 
 if [ ! -d $PATH1 ]; then
   echo "error: DATASET_PATH=$PATH1 is not a directory"

model_zoo/official/cv/crnn/scripts/run_standalone_train.sh

@@ -14,8 +14,8 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 3 ]; then
-  echo "Usage: sh run_standalone_train.sh [DATASET_NAME] [DATASET_PATH] [PLATFORM]"
+if [ $# != 3 ] && [ $# != 2 ]; then
+  echo "Usage: sh run_standalone_train.sh [DATASET_NAME] [DATASET_PATH] [PLATFORM](optional)"
   exit 1
 fi
 
@@ -29,7 +29,11 @@ get_real_path() {
 
 DATASET_NAME=$1
 PATH1=$(get_real_path $2)
-PLATFORM=$3
+if [ $# == 3 ]; then
+  PLATFORM=$3
+else
+  PLATFORM="Ascend"
+fi
 
 if [ ! -d $PATH1 ]; then
   echo "error: DATASET_PATH=$PATH1 is not a directory"
@@ -58,7 +62,7 @@ run_gpu() {
 if [ -d "train" ]; then
     rm -rf ./train
 fi
-WORKDIR=./train$(DEVICE_ID)
+WORKDIR=./train${DEVICE_ID}
 mkdir $WORKDIR
 cp ../*.py $WORKDIR
 cp -r ../src $WORKDIR

model_zoo/official/cv/crnn/train.py

@@ -34,8 +34,8 @@ set_seed(1)
 parser = argparse.ArgumentParser(description="crnn training")
 parser.add_argument("--run_distribute", action='store_true', help="Run distribute, default is false.")
 parser.add_argument('--dataset_path', type=str, default=None, help='Dataset path, default is None')
-parser.add_argument('--platform', type=str, default='Ascend', choices=['Ascend', 'GPU'],
-                    help='Running platform, choose from Ascend, GPU, and default is Ascend.')
+parser.add_argument('--platform', type=str, default='Ascend', choices=['Ascend'],
+                    help='Running platform, only support Ascend now. Default is Ascend.')
 parser.add_argument('--model', type=str, default='lowercase', help="Model type, default is lowercase")
 parser.add_argument('--dataset', type=str, default='synth', choices=['synth', 'ic03', 'ic13', 'svt', 'iiit5k'])
 parser.set_defaults(run_distribute=False)
@@ -92,7 +92,7 @@ if __name__ == '__main__':
     model = Model(net)
     # define callbacks
     callbacks = [LossMonitor(), TimeMonitor(data_size=step_size)]
-    if config.save_checkpoint:
+    if config.save_checkpoint and rank == 0:
         config_ck = CheckpointConfig(save_checkpoint_steps=config.save_checkpoint_steps,
                                      keep_checkpoint_max=config.keep_checkpoint_max)
         save_ckpt_path = os.path.join(config.save_checkpoint_path, 'ckpt_' + str(rank) + '/')