In order to save computing hours, you may want to terminate all of the load servers, but keep the GUI console open. In this case the load servers are terminated except for the server running the JMeter GUI console, therefore the load results are still available for viewing and uploading to the website. To terminate only the load servers, click on Terminate All But Console button on the right-hand menu: 
When you no longer need to view the JMeter GUI console, click on Terminate All button in order to terminate the remaining server.