diff --git a/examples/aishell/asr0/local/test.sh b/examples/aishell/asr0/local/test.sh
index 778c7142e..df628af86 100755
--- a/examples/aishell/asr0/local/test.sh
+++ b/examples/aishell/asr0/local/test.sh
@@ -22,7 +22,7 @@ fi
 
 if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
     # format the reference test file
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test.raw \
         --trans_ref data/manifest.test.text
 
@@ -39,20 +39,20 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
     fi
 
     # format the hyp file
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.rsl \
         --trans_hyp ${ckpt_prefix}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/${MAIN_ROOT}/${MAIN_ROOT}/${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test.text ${ckpt_prefix}.rsl.text > ${ckpt_prefix}.error
 fi
 
 if [ ${stage} -le 101 ] && [ ${stop_stage} -ge 101 ]; then
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test.raw \
         --trans_ref_sclite data/manifest.test.text.sclite
 
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.rsl \
         --trans_hyp_sclite ${ckpt_prefix}.rsl.text.sclite
 
diff --git a/examples/aishell/asr1/local/test.sh b/examples/aishell/asr1/local/test.sh
index 8487e9904..2f55f48a8 100755
--- a/examples/aishell/asr1/local/test.sh
+++ b/examples/aishell/asr1/local/test.sh
@@ -34,7 +34,7 @@ fi
 
 if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
     # format the reference test file
-    python utils/format_rsl.py \
+    python ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test.raw \
         --trans_ref data/manifest.test.text
 
@@ -63,10 +63,10 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
 
         fi
         # format the hyp file
-        python utils/format_rsl.py \
+        python ${MAIN_ROOT}/utils/format_rsl.py \
             --origin_hyp ${output_dir}/${type}.rsl \
             --trans_hyp ${output_dir}/${type}.rsl.text
-        python utils/compute-wer.py --char=1 --v=1 \
+        python ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
             data/manifest.test.text ${output_dir}/${type}.rsl.text > ${output_dir}/${type}.error 
 
     done
@@ -89,10 +89,10 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
             echo "Failed in evaluation!"
             exit 1
         fi
-        python utils/format_rsl.py \
+        python ${MAIN_ROOT}/utils/format_rsl.py \
             --origin_hyp ${output_dir}/${type}.rsl \
             --trans_hyp ${output_dir}/${type}.rsl.text
-        python utils/compute-wer.py --char=1 --v=1 \
+        python ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
             data/manifest.test.text ${output_dir}/${type}.rsl.text > ${output_dir}/${type}.error 
     done
 fi
@@ -100,13 +100,13 @@ fi
 if [ ${stage} -le 101 ] && [ ${stop_stage} -ge 101 ]; then
     echo "using sclite to compute cer..."
     # format the reference test file for sclite
-    python utils/format_rsl.py \
+    python ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test.raw \
         --trans_ref_sclite data/manifest.test.text.sclite
     
     output_dir=${ckpt_prefix}
     for type in attention ctc_greedy_search ctc_prefix_beam_search attention_rescoring; do
-        python utils/format_rsl.py \
+        python ${MAIN_ROOT}/utils/format_rsl.py \
             --origin_hyp ${output_dir}/${type}.rsl \
             --trans_hyp_sclite ${output_dir}/${type}.rsl.text.sclite
 
diff --git a/examples/aishell/asr3/local/test.sh b/examples/aishell/asr3/local/test.sh
index 91e1c5457..b3a4cf5d2 100755
--- a/examples/aishell/asr3/local/test.sh
+++ b/examples/aishell/asr3/local/test.sh
@@ -22,7 +22,7 @@ source ${MAIN_ROOT}/utils/parse_options.sh || exit 1;
 #    exit 1
 #fi
 
-python3 utils/format_rsl.py \
+python3 ${MAIN_ROOT}/utils/format_rsl.py \
     --origin_ref data/manifest.test.raw \
     --trans_ref data/manifest.test.text
 
@@ -43,11 +43,11 @@ for type in ctc_greedy_search; do
         echo "Failed in evaluation!"
         exit 1
     fi
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.${type}.rsl \
         --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
     echo "decoding ${type} done."
 done
@@ -68,11 +68,11 @@ for type in ctc_prefix_beam_search; do
         echo "Failed in evaluation!"
         exit 1
     fi
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.${type}.rsl \
         --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
     echo "decoding ${type} done."
 done
diff --git a/examples/librispeech/asr0/local/test.sh b/examples/librispeech/asr0/local/test.sh
index 728569d1f..d6258f5c8 100755
--- a/examples/librispeech/asr0/local/test.sh
+++ b/examples/librispeech/asr0/local/test.sh
@@ -22,7 +22,7 @@ fi
 
 if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
     # format the reference test file
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test-clean.raw \
         --trans_ref data/manifest.test-clean.text
 
@@ -38,20 +38,20 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
         exit 1
     fi
 
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.rsl \
         --trans_hyp ${ckpt_prefix}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test-clean.text ${ckpt_prefix}.rsl.text > ${ckpt_prefix}.error
 fi
 
 if [ ${stage} -le 101 ] && [ ${stop_stage} -ge 101 ]; then
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test-clean.raw \
         --trans_ref_sclite data/manifest.test.text-clean.sclite
 
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.rsl \
         --trans_hyp_sclite ${ckpt_prefix}.rsl.text.sclite
 
diff --git a/examples/librispeech/asr1/local/test.sh b/examples/librispeech/asr1/local/test.sh
index 03cef9a62..491c8ae77 100755
--- a/examples/librispeech/asr1/local/test.sh
+++ b/examples/librispeech/asr1/local/test.sh
@@ -43,7 +43,7 @@ echo "chunk mode ${chunk_mode}"
 
 if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
     # format the reference test file
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test-clean.raw \
         --trans_ref data/manifest.test-clean.text
 
@@ -68,11 +68,11 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
             echo "Failed in evaluation!"
             exit 1
         fi
-        python3 utils/format_rsl.py \
+        python3 ${MAIN_ROOT}/utils/format_rsl.py \
             --origin_hyp ${ckpt_prefix}.${type}.rsl \
             --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-        python3 utils/compute-wer.py --char=1 --v=1 \
+        python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
             data/manifest.test-clean.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
         echo "decoding ${type} done."
     done
@@ -98,7 +98,7 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
             echo "Failed in evaluation!"
             exit 1
         fi
-        python3 utils/format_rsl.py \
+        python3 ${MAIN_ROOT}/utils/format_rsl.py \
             --origin_hyp ${ckpt_prefix}.${type}.rsl \
             --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
@@ -125,25 +125,25 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
             echo "Failed in evaluation!"
             exit 1
         fi
-        python3 utils/format_rsl.py \
+        python3 ${MAIN_ROOT}/utils/format_rsl.py \
             --origin_hyp ${ckpt_prefix}.${type}.rsl \
             --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-        python3 utils/compute-wer.py --char=1 --v=1 \
+        python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
             data/manifest.test-clean.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
         echo "decoding ${type} done."
     done
 fi
 
 if [ ${stage} -le 101 ] && [ ${stop_stage} -ge 101 ]; then
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_ref data/manifest.test-clean.raw \
         --trans_ref_sclite data/manifest.test.text-clean.sclite
 
 
     output_dir=${ckpt_prefix}
     for type in attention ctc_greedy_search ctc_prefix_beam_search attention_rescoring; do
-        python utils/format_rsl.py \
+        python ${MAIN_ROOT}/utils/format_rsl.py \
             --origin_hyp ${output_dir}/${type}.rsl \
             --trans_hyp_sclite ${output_dir}/${type}.rsl.text.sclite
 
diff --git a/examples/librispeech/asr3/local/test.sh b/examples/librispeech/asr3/local/test.sh
index ccc0d84de..c59376771 100755
--- a/examples/librispeech/asr3/local/test.sh
+++ b/examples/librispeech/asr3/local/test.sh
@@ -24,7 +24,7 @@ source ${MAIN_ROOT}/utils/parse_options.sh || exit 1;
 #    exit 1
 #fi
 
-python3 utils/format_rsl.py \
+python3 ${MAIN_ROOT}/utils/format_rsl.py \
     --origin_ref data/manifest.test-clean.raw \
     --trans_ref data/manifest.test-clean.text
 
@@ -45,11 +45,11 @@ for type in ctc_greedy_search; do
         echo "Failed in evaluation!"
         exit 1
     fi
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.${type}.rsl \
         --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test-clean.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
     echo "decoding ${type} done."
 done
@@ -70,11 +70,11 @@ for type in ctc_prefix_beam_search; do
         echo "Failed in evaluation!"
         exit 1
     fi
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.${type}.rsl \
         --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test-clean.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
     echo "decoding ${type} done."
 done
diff --git a/examples/librispeech/asr4/local/test.sh b/examples/librispeech/asr4/local/test.sh
index dfbd56ac2..8c17bd350 100755
--- a/examples/librispeech/asr4/local/test.sh
+++ b/examples/librispeech/asr4/local/test.sh
@@ -23,7 +23,7 @@ source ${MAIN_ROOT}/utils/parse_options.sh || exit 1;
 #    exit 1
 #fi
 
-python3 utils/format_rsl.py \
+python3 ${MAIN_ROOT}/utils/format_rsl.py \
     --origin_ref data/manifest.test-clean.raw \
     --trans_ref data/manifest.test-clean.text
 
@@ -44,11 +44,11 @@ for type in ctc_greedy_search; do
         echo "Failed in evaluation!"
         exit 1
     fi
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.${type}.rsl \
         --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test-clean.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
     echo "decoding ${type} done."
 done
@@ -69,11 +69,11 @@ for type in ctc_prefix_beam_search; do
         echo "Failed in evaluation!"
         exit 1
     fi
-    python3 utils/format_rsl.py \
+    python3 ${MAIN_ROOT}/utils/format_rsl.py \
         --origin_hyp ${ckpt_prefix}.${type}.rsl \
         --trans_hyp ${ckpt_prefix}.${type}.rsl.text
 
-    python3 utils/compute-wer.py --char=1 --v=1 \
+    python3 ${MAIN_ROOT}/utils/compute-wer.py --char=1 --v=1 \
         data/manifest.test-clean.text ${ckpt_prefix}.${type}.rsl.text > ${ckpt_prefix}.${type}.error
     echo "decoding ${type} done."
 done
diff --git a/paddlespeech/s2t/exps/deepspeech2/model.py b/paddlespeech/s2t/exps/deepspeech2/model.py
index 710757115..7660e5fbc 100644
--- a/paddlespeech/s2t/exps/deepspeech2/model.py
+++ b/paddlespeech/s2t/exps/deepspeech2/model.py
@@ -421,7 +421,6 @@ class DeepSpeech2ExportTester(DeepSpeech2Tester):
         else:
             raise Exception("wrong model type")
 
-        self.predictor.clear_intermediate_tensor()
         self.predictor.try_shrink_memory()
 
         #replace the <space> with ' '
diff --git a/paddlespeech/s2t/models/ds2/deepspeech2.py b/paddlespeech/s2t/models/ds2/deepspeech2.py
index b7ee80a7d..050a79185 100644
--- a/paddlespeech/s2t/models/ds2/deepspeech2.py
+++ b/paddlespeech/s2t/models/ds2/deepspeech2.py
@@ -398,14 +398,15 @@ class DeepSpeech2InferModel(DeepSpeech2Model):
                     paddle.static.InputSpec(
                         shape=[None, None, self.encoder.feat_size
                                ],  #[B, chunk_size, feat_dim]
-                        dtype='float32'),
+                        dtype='float32', ),
                     paddle.static.InputSpec(shape=[None],
                                             dtype='int64'),  # audio_length, [B]
                     paddle.static.InputSpec(
                         shape=[None, None, None], dtype='float32'),
                     paddle.static.InputSpec(
                         shape=[None, None, None], dtype='float32')
-                ])
+                ],
+                full_graph=True)
         elif self.encoder.rnn_direction == "bidirect":
             static_model = paddle.jit.to_static(
                 self,
@@ -415,7 +416,8 @@ class DeepSpeech2InferModel(DeepSpeech2Model):
                         dtype='float32'),  # audio, [B,T,D]
                     paddle.static.InputSpec(shape=[None],
                                             dtype='int64'),  # audio_length, [B]
-                ])
+                ],
+                full_graph=True)
         else:
             raise Exception("wrong model type")
         return static_model