diff --git a/mobile/src/operators/kernel/cl/elementwise_add_kernel.cpp b/mobile/src/operators/kernel/cl/elementwise_add_kernel.cpp
index be051e1942ed3539c2cf2798283e67e4a28c35fc..1506956280a489ebf9631099101c1ac0f0bf03ec 100644
--- a/mobile/src/operators/kernel/cl/elementwise_add_kernel.cpp
+++ b/mobile/src/operators/kernel/cl/elementwise_add_kernel.cpp
@@ -25,17 +25,27 @@ bool ElementwiseAddKernel<GPU_CL, float>::Init(
   DLOG << "-----init add-----";
   CLImage *bias =
       reinterpret_cast<CLImage *>(const_cast<CLImage *>(param->InputY()));
-  if (!bias->isInit()) {
-    bias->InitNormalCLImage(cl_helper_.CLContext(),
-                            this->cl_helper_.CLCommandQueue());
-  }
-  DLOG << " bias: " << *bias;
   if (bias->dims().size() == 4) {
+    if (!bias->isInit()) {
+      bias->InitNormalCLImage(cl_helper_.CLContext(),
+                              this->cl_helper_.CLCommandQueue());
+    }
+    DLOG << " bias: " << *bias;
     this->cl_helper_.AddKernel("elementwise_add", "elementwise_add_kernel.cl");
   } else if (param->InputY()->dims().size() == 1) {
     if (param->Axis() == param->InputX()->dims().size() - 1) {
+      if (!bias->isInit()) {
+        bias->InitNormalCLImage(cl_helper_.CLContext(),
+                                this->cl_helper_.CLCommandQueue());
+      }
+      DLOG << " bias: " << *bias;
       this->cl_helper_.AddKernel("width_add", "channel_add_kernel.cl");
     } else if (param->Axis() == param->InputX()->dims().size() - 3) {
+      if (!bias->isInit()) {
+        bias->InitCLImage(cl_helper_.CLContext(),
+                          this->cl_helper_.CLCommandQueue());
+      }
+      DLOG << " bias: " << *bias;
       this->cl_helper_.AddKernel("channel_add", "channel_add_kernel.cl");
     } else {
       DLOG << "error:bias dims is error";
diff --git a/mobile/tools/python/fluidtools/run.py b/mobile/tools/python/fluidtools/run.py
index 2bf704fb8d119b657ba114fc90c01f92020bc7ce..06ffdd11b986cd3afcff5c12a5a9daf8d674d049 100644
--- a/mobile/tools/python/fluidtools/run.py
+++ b/mobile/tools/python/fluidtools/run.py
@@ -285,8 +285,9 @@ def save_all_op_output(feed_kv=None):
     for fetch in fetches:
         fetch_names.append(fetch.name)
     feed_names = feeds
-    for fetch_name in fetch_names:
-        output_var_filter.append(fetch_name)
+    if len(output_var_filter) > 0:
+        for fetch_name in fetch_names:
+            output_var_filter.append(fetch_name)
     for i in range(len(ops)):
         op = ops[i]
         var_name = None
diff --git a/mobile/tools/shell/change_mobile_namespace.sh b/mobile/tools/shell/change_mobile_namespace.sh
new file mode 100755
index 0000000000000000000000000000000000000000..5de87448446a4b7bdd9b82085d1853b148fc416e
--- /dev/null
+++ b/mobile/tools/shell/change_mobile_namespace.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# set -o xtrace
+
+extension=$1
+
+convert () {
+    perl -pi -e "s/namespace paddle_mobile/namespace paddle_mobile_${1}/g" "${2}"
+    perl -pi -e "s/paddle_mobile::/paddle_mobile_${1}::/g" "${2}"
+}
+
+revert () {
+    perl -pi -e "s/namespace paddle_mobile_[\w]*/namespace paddle_mobile/g" "${2}"
+    perl -pi -e "s/paddle_mobile_[\w]*::/paddle_mobile::/g" "${2}"
+}
+
+if [[ $2 == "revert" ]]; then
+    for file in $(find src -name "*\.*")
+    do
+        echo "reverting ${file}"
+        revert $extension $file
+    done
+    for file in $(find test -name "*\.*")
+    do
+        echo "reverting ${file}"
+        revert $extension $file
+    done
+else
+    for file in $(find src -name "*\.*")
+    do
+        echo "converting ${file}"
+        convert $extension $file
+    done
+    # for file in $(find test -name "*\.*")
+    # do
+    #     echo "converting ${file}"
+    #     convert $extension $file
+    # done
+fi