modify GPU default config(#5089)

PaddleNLP/legacy/pretrain_language_models/BERT/README.md

@@ -202,6 +202,7 @@ DATA_PATH=/path/to/xnli/data/
 CKPT_PATH=/path/to/save/checkpoints/
 
 python -u run_classifier.py --task_name ${TASK_NAME} \
+                   --use_cuda false \
                    --use_xpu true \
                    --do_train true \
                    --do_val true \

PaddleNLP/legacy/pretrain_language_models/BERT/run_classifier.py

@@ -100,7 +100,7 @@ run_type_g.add_arg("profiler_path",                str,    './', "the profiler o
 run_type_g.add_arg("is_profiler",                  int,    0,     "the profiler switch. (used for benchmark)")
 run_type_g.add_arg("max_iter",                     int,    0,     "the max batch nums to train. (used for benchmark)")
 
-run_type_g.add_arg("use_cuda",                     bool,   False,  "If set, use GPU for training.")
+run_type_g.add_arg("use_cuda",                     bool,   True,  "If set, use GPU for training.")
 run_type_g.add_arg("use_xpu",                      bool,   False,  "If set, use XPU for training.")
 run_type_g.add_arg("use_fast_executor",            bool,   False, "If set, use fast parallel executor (in experiment).")
 run_type_g.add_arg("shuffle",                      bool,   True,  "")