pharmdock并行运算的java实现

来源：互联网发布：mysql添加数据编辑：程序博客网时间：2024/06/16 22:07

上一篇用python实现的，用到map函数比较方便，用java实现起来可就没那么简单了，需要考虑线程共享数据问题、同步问题

class RunCmd implements Runnable{int index =0;//全局变量，线程共享数据，否则每个线程都会执行一次同一条命令List<File> molsList = new ArrayList<File>();public RunCmd(){File f = new File("/map/ph");getFileList(f);}private void getFileList(File f){File[] filePaths = f.listFiles();for (File mol : filePaths){if (mol.getName().endsWith("_omega2.mol2"))                        {                                molsList.add(mol);                        }}}public void run() {File file = null;while(index < molsList.size()){file=molsList.get(index);index++;System.out.println(Thread.currentThread().getName());String cmd = "···";System.out.println(cmd);try{Process p = Runtime.getRuntime().exec(cmd);p.waitFor();//在cmd执行时其他线程需要等待到其执行完毕，否则会将任务全部提交到后台}catch(IOException e){}catch(InterruptedException i){}}/*该方法会有线程间通信问题Iterator it = list.iterator();while(it.hasNext()){String cmd = "···";System.out.println(cmd);try{Runtime.getRuntime().exec(cmd);}catch(IOException e){}}*/}}class ParRun{public static void main(String[] args){RunCmd r = new RunCmd();Thread t0 = new Thread(r);Thread t1 = new Thread(r);Thread t2 = new Thread(r);Thread t3 = new Thread(r);Thread t4 = new Thread(r);Thread t5 = new Thread(r);t0.start();t1.start();t2.start();t3.start();t4.start();t5.start();}}

现在暂未考虑同步问题，以后改进

参考的文章：

http://bbs.csdn.net/topics/390773319

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