pipeline with node label parameter is not running in parallel

[padmasr...@googlemail.com]

Groovy script below, is used to start parallel build based on labels..so I have used nodeLabelParameter to pass label.

when I start build , build job: 'NodeLabel' is not running in parallel...though there are many free executors for that label.. one build is running at a time and others are waiting in queue and running one by one..kindly help me to resolve this issue...

//It will get nameLocation from other function..

def stepsForParallel = [:]

for (int i=0;i<nameLocation.size();i++ ) {

        String[] keyvalue;

        keyvalue = nameLocation[i].split(':')

        def name = keyvalue[1]

        def location = keyvalue[0]

    stepsForParallel[i] = transformIntoStep(name,location)

}

parallel stepsForParallel

def transformIntoStep(name,location) {

    return {

        

        build job: 'NodeLabel',

                parameters: [[$class: 'NodeParameterValue', name: 'labelName', labels: ["$location"], nodeEligibility: [$class: 'AllNodeEligibility']],[$class: 'StringParameterValue', name: 'buildname', value: name]]

      

    }

}