Created by: ccmeteorljh

paddle-version: fluid1.0 0930号编译版本 模型：models/fluid/ocr_attention 命令：

python -u train.py --batch_size 256 --model attention --total_step 320000

有时test异常，如下：

Time: 1538332948.57; Iter[13000]; Avg loss: 1.135; Avg seq err: 0.171
kpis    train_cost      1.134649
kpis    train_acc       0.828777

Time: 1538333644.09; Iter[14000]; Avg loss: 1.090; Avg seq err: 0.168
kpis    train_cost      1.090500
kpis    train_acc       0.832238

Time: 1538334340.52; Iter[15000]; Avg loss: 1.046; Avg seq err: 0.162
kpis    train_cost      1.046496
kpis    train_acc       0.837543

Time: 1538334393.92; Iter[15000]; Test seq error: 1893743600000000.0.

kpis    test_acc        -1893743556820991.000000