diff --git a/ci/jenkins/scripts/build.sh b/ci/jenkins/scripts/build.sh
deleted file mode 100755
index 2ccdf4a618..0000000000
--- a/ci/jenkins/scripts/build.sh
+++ /dev/null
@@ -1,142 +0,0 @@
-#!/bin/bash
-
-SOURCE="${BASH_SOURCE[0]}"
-while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
-  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-  SOURCE="$(readlink "$SOURCE")"
-  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
-done
-SCRIPTS_DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-
-CMAKE_BUILD_DIR="${SCRIPTS_DIR}/../../../core/cmake_build"
-BUILD_TYPE="Debug"
-BUILD_UNITTEST="OFF"
-INSTALL_PREFIX="/opt/milvus"
-BUILD_COVERAGE="OFF"
-DB_PATH="/opt/milvus"
-PROFILING="OFF"
-USE_JFROG_CACHE="OFF"
-RUN_CPPLINT="OFF"
-CUSTOMIZATION="OFF" # default use ori faiss
-CUDA_COMPILER=/usr/local/cuda/bin/nvcc
-
-CUSTOMIZED_FAISS_URL="${FAISS_URL:-NONE}"
-wget -q --method HEAD ${CUSTOMIZED_FAISS_URL}
-if [ $? -eq 0 ]; then
-  CUSTOMIZATION="ON"
-else
-  CUSTOMIZATION="OFF"
-fi
-
-while getopts "o:d:t:ulcgjhx" arg
-do
-        case $arg in
-             o)
-                INSTALL_PREFIX=$OPTARG
-                ;;
-             d)
-                DB_PATH=$OPTARG
-                ;;
-             t)
-                BUILD_TYPE=$OPTARG # BUILD_TYPE
-                ;;
-             u)
-                echo "Build and run unittest cases" ;
-                BUILD_UNITTEST="ON";
-                ;;
-             l)
-                RUN_CPPLINT="ON"
-                ;;
-             c)
-                BUILD_COVERAGE="ON"
-                ;;
-             g)
-                PROFILING="ON"
-                ;;
-             j)
-                USE_JFROG_CACHE="ON"
-                ;;
-             x)
-                CUSTOMIZATION="OFF" # force use ori faiss
-                ;;
-             h) # help
-                echo "
-
-parameter:
--o: install prefix(default: /opt/milvus)
--d: db data path(default: /opt/milvus)
--t: build type(default: Debug)
--u: building unit test options(default: OFF)
--l: run cpplint, clang-format and clang-tidy(default: OFF)
--c: code coverage(default: OFF)
--g: profiling(default: OFF)
--j: use jfrog cache build directory(default: OFF)
--h: help
-
-usage:
-./build.sh -p \${INSTALL_PREFIX} -t \${BUILD_TYPE} [-u] [-l] [-r] [-c] [-g] [-j] [-h]
-                "
-                exit 0
-                ;;
-             ?)
-                echo "ERROR! unknown argument"
-        exit 1
-        ;;
-        esac
-done
-
-if [[ ! -d ${CMAKE_BUILD_DIR} ]]; then
-    mkdir ${CMAKE_BUILD_DIR}
-fi
-
-cd ${CMAKE_BUILD_DIR}
-
-# remove make cache since build.sh -l use default variables
-# force update the variables each time
-make rebuild_cache
-
-CMAKE_CMD="cmake \
--DBUILD_UNIT_TEST=${BUILD_UNITTEST} \
--DCMAKE_INSTALL_PREFIX=${INSTALL_PREFIX}
--DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
--DCMAKE_CUDA_COMPILER=${CUDA_COMPILER} \
--DBUILD_COVERAGE=${BUILD_COVERAGE} \
--DMILVUS_DB_PATH=${DB_PATH} \
--DMILVUS_ENABLE_PROFILING=${PROFILING} \
--DUSE_JFROG_CACHE=${USE_JFROG_CACHE} \
--DCUSTOMIZATION=${CUSTOMIZATION} \
--DFAISS_URL=${CUSTOMIZED_FAISS_URL} \
-.."
-echo ${CMAKE_CMD}
-${CMAKE_CMD}
-
-if [[ ${RUN_CPPLINT} == "ON" ]]; then
-    # cpplint check
-    make lint
-    if [ $? -ne 0 ]; then
-        echo "ERROR! cpplint check failed"
-        exit 1
-    fi
-    echo "cpplint check passed!"
-
-    # clang-format check
-    make check-clang-format
-    if [ $? -ne 0 ]; then
-        echo "ERROR! clang-format check failed"
-        exit 1
-    fi
-    echo "clang-format check passed!"
-
-#    # clang-tidy check
-#    make check-clang-tidy
-#    if [ $? -ne 0 ]; then
-#        echo "ERROR! clang-tidy check failed"
-#        rm -f CMakeCache.txt
-#        exit 1
-#    fi
-#    echo "clang-tidy check passed!"
-else
-    # compile and build
-    make -j8 || exit 1
-    make install || exit 1
-fi
diff --git a/ci/jenkins/step/build.groovy b/ci/jenkins/step/build.groovy
index 14d0414f4f..5b3a46818d 100644
--- a/ci/jenkins/step/build.groovy
+++ b/ci/jenkins/step/build.groovy
@@ -1,8 +1,7 @@
 timeout(time: 60, unit: 'MINUTES') {
-    dir ("ci/jenkins/scripts") {
-        sh "./build.sh -l"
+    dir ("ci/scripts") {
         withCredentials([usernamePassword(credentialsId: "${params.JFROG_CREDENTIALS_ID}", usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) {
-            sh "export JFROG_ARTFACTORY_URL='${params.JFROG_ARTFACTORY_URL}' && export JFROG_USER_NAME='${USERNAME}' && export JFROG_PASSWORD='${PASSWORD}' && ./build.sh -t ${params.BUILD_TYPE} -o /opt/milvus -d /opt/milvus -j -u -c"
+            sh "export JFROG_ARTFACTORY_URL='${params.JFROG_ARTFACTORY_URL}' && export JFROG_USER_NAME='${USERNAME}' && export JFROG_PASSWORD='${PASSWORD}' && ./build.sh -t ${params.BUILD_TYPE} -o /opt/milvus -d /opt/milvus -l -j -u -c"
         }
     }
 }
diff --git a/ci/jenkins/step/coverage.groovy b/ci/jenkins/step/coverage.groovy
index ff2e3e6fa2..75ac7b48b5 100644
--- a/ci/jenkins/step/coverage.groovy
+++ b/ci/jenkins/step/coverage.groovy
@@ -1,5 +1,5 @@
 timeout(time: 30, unit: 'MINUTES') {
-    dir ("ci/jenkins/scripts") {
+    dir ("ci/scripts") {
         sh "./coverage.sh -o /opt/milvus -u root -p 123456 -t \$POD_IP"
         // Set some env variables so codecov detection script works correctly
         withCredentials([[$class: 'StringBinding', credentialsId: "${env.PIPELINE_NAME}-codecov-token", variable: 'CODECOV_TOKEN']]) {
diff --git a/ci/scripts/build.sh b/ci/scripts/build.sh
index a8bd339ff5..444537fe6b 100755
--- a/ci/scripts/build.sh
+++ b/ci/scripts/build.sh
@@ -18,7 +18,7 @@ INSTALL_PREFIX="/opt/milvus"
 BUILD_COVERAGE="OFF"
 USE_JFROG_CACHE="OFF"
 RUN_CPPLINT="OFF"
-CPU_VERSION="ON"
+GPU_VERSION="OFF"
 WITH_MKL="OFF"
 CUDA_COMPILER=/usr/local/cuda/bin/nvcc
 
@@ -35,7 +35,7 @@ do
                 CORE_BUILD_DIR=$OPTARG # CORE_BUILD_DIR
                 ;;
              g)
-                CPU_VERSION="OFF";
+                GPU_VERSION="ON";
                 ;;
              u)
                 echo "Build and run unittest cases" ;
@@ -84,13 +84,13 @@ if [[ ! -d ${CORE_BUILD_DIR} ]]; then
     mkdir ${CORE_BUILD_DIR}
 fi
 
-pushd ${CORE_BUILD_DIR}
+cd ${CORE_BUILD_DIR}
 
 CMAKE_CMD="cmake \
 -DCMAKE_INSTALL_PREFIX=${INSTALL_PREFIX}
 -DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
 -DCMAKE_CUDA_COMPILER=${CUDA_COMPILER} \
--DMILVUS_CPU_VERSION=${CPU_VERSION} \
+-DMILVUS_GPU_VERSION=${GPU_VERSION} \
 -DBUILD_UNIT_TEST=${BUILD_UNITTEST} \
 -DBUILD_COVERAGE=${BUILD_COVERAGE} \
 -DUSE_JFROG_CACHE=${USE_JFROG_CACHE} \
@@ -100,6 +100,34 @@ ${MILVUS_CORE_DIR}"
 echo ${CMAKE_CMD}
 ${CMAKE_CMD}
 
+
+if [[ ${RUN_CPPLINT} == "ON" ]]; then
+    # cpplint check
+    make lint
+    if [ $? -ne 0 ]; then
+        echo "ERROR! cpplint check failed"
+        exit 1
+    fi
+    echo "cpplint check passed!"
+
+    # clang-format check
+    make check-clang-format
+    if [ $? -ne 0 ]; then
+        echo "ERROR! clang-format check failed"
+        exit 1
+    fi
+    echo "clang-format check passed!"
+
+#    # clang-tidy check
+#    make check-clang-tidy
+#    if [ $? -ne 0 ]; then
+#        echo "ERROR! clang-tidy check failed"
+#        rm -f CMakeCache.txt
+#        exit 1
+#    fi
+#    echo "clang-tidy check passed!"
+fi
+
 # compile and build
 make -j8 || exit 1
 make install || exit 1
diff --git a/ci/jenkins/scripts/coverage.sh b/ci/scripts/coverage.sh
similarity index 86%
rename from ci/jenkins/scripts/coverage.sh
rename to ci/scripts/coverage.sh
index 5c9d010d46..17bc08ad00 100755
--- a/ci/jenkins/scripts/coverage.sh
+++ b/ci/scripts/coverage.sh
@@ -9,18 +9,22 @@ done
 SCRIPTS_DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
 
 INSTALL_PREFIX="/opt/milvus"
-CMAKE_BUILD_DIR="${SCRIPTS_DIR}/../../../core/cmake_build"
+MILVUS_CORE_DIR="${SCRIPTS_DIR}/../../core"
+CORE_BUILD_DIR="${MILVUS_CORE_DIR}/cmake_build"
 MYSQL_USER_NAME=root
 MYSQL_PASSWORD=123456
 MYSQL_HOST='127.0.0.1'
 MYSQL_PORT='3306'
 
-while getopts "o:u:p:t:h" arg
+while getopts "o:b:u:p:t:h" arg
 do
         case $arg in
              o)
                 INSTALL_PREFIX=$OPTARG
                 ;;
+             b)
+                CORE_BUILD_DIR=$OPTARG # CORE_BUILD_DIR
+                ;;
              u)
                 MYSQL_USER_NAME=$OPTARG
                 ;;
@@ -35,13 +39,14 @@ do
 
 parameter:
 -o: milvus install prefix(default: /opt/milvus)
+-b: core code build directory
 -u: mysql account
 -p: mysql password
 -t: mysql host
 -h: help
 
 usage:
-./coverage.sh -o \${INSTALL_PREFIX} -u \${MYSQL_USER} -p \${MYSQL_PASSWORD} -t \${MYSQL_HOST} [-h]
+./coverage.sh -o \${INSTALL_PREFIX} -b \$${CORE_BUILD_DIR} -u \${MYSQL_USER} -p \${MYSQL_PASSWORD} -t \${MYSQL_HOST} [-h]
                 "
                 exit 0
                 ;;
@@ -63,12 +68,14 @@ FILE_INFO_OUTPUT="output.info"
 FILE_INFO_OUTPUT_NEW="output_new.info"
 DIR_LCOV_OUTPUT="lcov_out"
 
-DIR_GCNO="${CMAKE_BUILD_DIR}"
+DIR_GCNO="${CORE_BUILD_DIR}"
 DIR_UNITTEST="${INSTALL_PREFIX}/unittest"
 
+cd ${SCRIPTS_DIR}
+
 # delete old code coverage info files
-rm -rf lcov_out
-rm -f FILE_INFO_BASE FILE_INFO_MILVUS FILE_INFO_OUTPUT FILE_INFO_OUTPUT_NEW
+rm -rf ${DIR_LCOV_OUTPUT}
+rm -f ${FILE_INFO_BASE} ${FILE_INFO_MILVUS} ${FILE_INFO_OUTPUT} ${FILE_INFO_OUTPUT_NEW}
 
 MYSQL_DB_NAME=milvus_`date +%s%N`