text: /************************************************************************************\ 
   *                                                                                  *
   * Copyright � 2014 Advanced Micro Devices, Inc.                                    *
   * Copyright (c) 2015 Mark D. Hill and David A. Wood                                *
   * All rights reserved.                                                             *
   *                                                                                  *
   * Redistribution and use in source and binary forms, with or without               *
   * modification, are permitted provided that the following are met:                 *
   *                                                                                  *
   * You must reproduce the above copyright notice.                                   *
   *                                                                                  *
   * Neither the name of the copyright holder nor the names of its contributors       *   
   * may be used to endorse or promote products derived from this software            *
   * without specific, prior, written permission from at least the copyright holder.  *
   *                                                                                  *
   * You must include the following terms in your license and/or other materials      *
   * provided with the software.                                                      * 
   *                                                                                  *  
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"      *
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE        *
   * IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT, AND FITNESS FOR A       *
   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER        *
   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,         *
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  * 
   * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS      *
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN          *
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING  *
   * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY   *
   * OF SUCH DAMAGE.                                                                  *
   *                                                                                  *
   * Without limiting the foregoing, the software may implement third party           *  
   * technologies for which you must obtain licenses from parties other than AMD.     *  
   * You agree that AMD has not obtained or conveyed to you, and that you shall       *
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   * underlying intellectual property rights related to the third party technologies. *  
   * These third party technologies are not licensed hereunder.                       *
   *                                                                                  *
   * If you use the software (in whole or in part), you shall adhere to all           *        
   * applicable U.S., European, and other export laws, including but not limited to   *
   * the U.S. Export Administration Regulations ("EAR") (15 C.F.R Sections 730-774),  *
   * and E.U. Council Regulation (EC) No 428/2009 of 5 May 2009.  Further, pursuant   *
   * to Section 740.6 of the EAR, you hereby certify that, except pursuant to a       *
   * license granted by the United States Department of Commerce Bureau of Industry   *
   * and Security or as otherwise permitted pursuant to a License Exception under     *
   * the U.S. Export Administration Regulations ("EAR"), you will not (1) export,     *
   * re-export or release to a national of a country in Country Groups D:1, E:1 or    * 
   * E:2 any restricted technology, software, or source code you receive hereunder,   * 
   * or (2) export to Country Groups D:1, E:1 or E:2 the direct product of such       *
   * technology or software, if such foreign produced direct product is subject to    * 
   * national security controls as identified on the Commerce Control List (currently * 
   * found in Supplement 1 to Part 774 of EAR).  For the most current Country Group   * 
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   * website at http://www.bis.doc.gov/.                                              *
   *                                                                                  *
  \************************************************************************************/
  
  #include <sys/time.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  double gettime() {
    struct timeval t;
    gettimeofday(&t,NULL);
    return t.tv_sec+t.tv_usec*1e-6;
  }
  