ds2 default using 4gpu; new result of ds2

examples/aishell/s0/README.md

@@ -4,7 +4,8 @@
 
 | Model | release | Config | Test set | Loss | CER |  
 | --- | --- | --- | --- | --- | --- |  
-| DeepSpeech2 | 2.1.0 | conf/deepspeech2.yaml + spec aug | test | 7.483316898345947 | 0.077860 |  
-| DeepSpeech2 | 2.1.0 | conf/deepspeech2.yaml | test | 7.299022197723389 | 0.078671 |
-| DeepSpeech2 | 2.0.0 | conf/deepspeech2.yaml | test | - | 0.078977 |  
-| DeepSpeech2 | 1.8.5 | - | test | - | 0.080447 |  
+| DeepSpeech2 58.4M | 2.1.0 | conf/deepspeech2.yaml + spec aug + new datapipe | test | 6.396368026733398 | 0.068382 |  
+| DeepSpeech2 58.4M | 2.1.0 | conf/deepspeech2.yaml + spec aug | test | 7.483316898345947 | 0.077860 |  
+| DeepSpeech2 58.4M | 2.1.0 | conf/deepspeech2.yaml | test | 7.299022197723389 | 0.078671 |
+| DeepSpeech2 58.4M | 2.0.0 | conf/deepspeech2.yaml | test | - | 0.078977 |  
+| DeepSpeech2 58.4M | 1.8.5 | - | test | - | 0.080447 |  

examples/aishell/s0/run.sh

@@ -2,7 +2,7 @@
 set -e
 source path.sh
 
-gpus=0
+gpus=0,1,2,3
 stage=0
 stop_stage=100
 conf_path=conf/deepspeech2.yaml