001 /* 002 * HostInfo.java 003 * 004 * Created on May 12, 2003, 11:59 AM 005 * 006 * This file is part of the STAR Scheduler. 007 * Copyright (c) 2002-2006 STAR Collaboration - Brookhaven National Laboratory 008 * 009 * STAR Scheduler is free software; you can redistribute it and/or modify 010 * it under the terms of the GNU General Public License as published by 011 * the Free Software Foundation; either version 2 of the License, or 012 * (at your option) any later version. 013 * 014 * STAR Scheduler is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 017 * GNU General Public License for more details. 018 * 019 * You should have received a copy of the GNU General Public License 020 * along with STAR Scheduler; if not, write to the Free Software 021 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 022 */ 023 024 package gov.bnl.star.offline.scheduler.monitor; 025 026 /** 027 * 028 * @author Gabriele Carcassi 029 */ 030 public interface HostInfo { 031 /** Returns the full name of the machine. For example, rcas6023.rcf.bnl.gov */ 032 String getHostName(); 033 /** Average number of jobs in the run queue (of the OS) in the past minute. */ 034 double getLoad1m(); 035 /** Average number of jobs in the run queue (of the OS) in the past 5 minutes. */ 036 double getLoad5m(); 037 /** Average number of jobs in the run queue (of the OS) in the past 15 minutes. */ 038 double getLoad15m(); 039 /** Number of CPUs on the machine. */ 040 int getProcessorCount(); 041 /** The speed of the processor in MHz. */ 042 double getProcessorSpeed(); 043 /** Returns the total memory available in KBytes. */ 044 double getMemorySize(); 045 /** Returns the available free memory in KBytes. */ 046 double getMemoryAvailable(); 047 }