added stages

Jenkins/release-pipeline/Jenkinsfile

@@ -13,8 +13,10 @@
 // limitations under the License.
 
 pipeline {
+    agent none
+    
     triggers {
-        pollSCM '*/5 * * * *'
+        pollSCM 'H/5 * * * *'
     }
     environment {
         MY_BUILD_ID = "${JOB_BASE_NAME}-${BUILD_NUMBER}"
@@ -23,6 +25,7 @@ pipeline {
         RESULT_DIR = "${WORKSPACE}\\results"
         LLVM_DIR = "${WORKSPACE}\\llvm-project"        
     }
+    stages {
         stage("build and test on Windows and Linux"){
             parallel {
                 stage("Linux"){
@@ -136,4 +139,5 @@ pipeline {
             }
         }
 
+    }
 }