content: /*
   * The MIT License (MIT)
   *
   * Copyright (c) 2011-2020 Broad Institute, Aiden Lab, Rice University, Baylor College of Medicine
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   *  THE SOFTWARE.
   */
  
  package juicebox.tools.dev;
  
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  
  public class ParallelizedJuicerTools {
  
      public static void launchParallelizedCode(Runnable runnable) {
          launchParallelizedCode(Runtime.getRuntime().availableProcessors(), runnable);
      }
  
      public static void launchParallelizedCode(int numCPUThreads, Runnable runnable) {
          ExecutorService executor = Executors.newFixedThreadPool(numCPUThreads);
          for (int l = 0; l < numCPUThreads; l++) {
              Runnable worker = new Runnable() {
                  @Override
                  public void run() {
                      runnable.run();
                  }
              };
              executor.execute(worker);
          }
          executor.shutdown();
  
          // Wait until all threads finish
          while (!executor.isTerminated()) {
          }
      }
  }
  