To send tasks to all remote nodes, you need to get the remote cluster group and then create a compute object from the remote compute group. The code will look as follows, but you need a remote Apache Ignite server instance to verify the code's execution:

package com.packt;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCluster;
import org.apache.ignite.IgniteCompute;
import org.apache.ignite.Ignition;
import org.apache.ignite.cluster.ClusterGroup;
import org.apache.ignite.configuration.IgniteConfiguration;

public class RemoteNodes {
 public static void main(String[] args) {
     IgniteConfiguration cfg = new IgniteConfiguration();
     cfg.setPeerClassLoadingEnabled(true);
     try (Ignite ignite = Ignition.start(cfg)) {
         IgniteCluster cluster = ignite.cluster();
 
         //Get remote server group
         ClusterGroup forRemotes = cluster.forRemotes();
 
         //Get a compute task for remote servers
        IgniteCompute compute = ignite.compute(forRemotes);
 
         //broadcast the computation to remote nodes
         compute.broadcast(() -> {
             System.out.println("Only remote nodes");
         });
     }
  }
}