Can we tell Jenkins to execute half of my test in a one slave and other half in another slave machine

Question

Is there any way to set up a Jenkins job where it will execute part of the test cases in a Node A and other part of the tests in Node B. Technically, I need to reduce my test executing time executing tests in parallel on two different servers (Agents).

In the worst case, I was planing to make two jobs which will run two different text.xml files and those XML files will contain different test classes.

Answer 1

In a Jenkins pipeline you can run stages parallel:

    pipeline {
    agent none
    stages {
        stage('Run Tests') {
            parallel {
                stage('Test On agentA') {
                    agent {
                        label "agentA"
                    }
                    steps {
                        sh "run-testsA.sh"
                    }
                    post {
                        always {
                            junit "**/TEST-*.xml"
                        }
                    }
                }
                stage('Test On agentB') {
                    agent {
                        label "agentB"
                    }
                    steps {
                        sh "run-testsB.sh"
                    }
                    post {
                        always {
                            junit "**/TEST-*.xml"
                        }
                    }
                }
            }
        }
    }
}

https://www.jenkins.io/blog/2017/09/25/declarative-1/