liboffloadmic/runtime/offload_timer_target.cpp

   1 /*
   2     Copyright (c) 2014 Intel Corporation.  All Rights Reserved.
   3
   4     Redistribution and use in source and binary forms, with or without
   5     modification, are permitted provided that the following conditions
   6     are met:
   7
   8       * Redistributions of source code must retain the above copyright
   9         notice, this list of conditions and the following disclaimer.
  10       * Redistributions in binary form must reproduce the above copyright
  11         notice, this list of conditions and the following disclaimer in the
  12         documentation and/or other materials provided with the distribution.
  13       * Neither the name of Intel Corporation nor the names of its
  14         contributors may be used to endorse or promote products derived
  15         from this software without specific prior written permission.
  16
  17     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20     A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21     HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23     LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 */
  29
  30
  31 #include "offload_timer.h"
  32 #include "offload_target.h"
  33
  34 #ifdef __INTEL_COMPILER
  35 #include <ia32intrin.h>
  36 #else // __INTEL_COMPILER
  37 #include <x86intrin.h>
  38 #endif // __INTEL_COMPILER
  39
  40
  41
  42 int timer_enabled = 0;
  43
  44 #ifdef TIMING_SUPPORT
  45
  46 #if defined(LINUX) || defined(FREEBSD)
  47 static __thread OffloadTargetTimerData timer_data;
  48 #else // WINNT
  49 static __declspec(thread) OffloadTargetTimerData timer_data;
  50 #endif // defined(LINUX) || defined(FREEBSD)
  51
  52
  53 void offload_timer_start(
  54     OffloadTargetPhase p_type
  55 )
  56 {
  57     timer_data.phases[p_type].start = _rdtsc();
  58 }
  59
  60 void offload_timer_stop(
  61     OffloadTargetPhase p_type
  62 )
  63 {
  64     timer_data.phases[p_type].total += _rdtsc() -
  65                                        timer_data.phases[p_type].start;
  66 }
  67
  68 void offload_timer_init()
  69 {
  70     memset(&timer_data, 0, sizeof(OffloadTargetTimerData));
  71 }
  72
  73 void offload_timer_fill_target_data(
  74     void *buf
  75 )
  76 {
  77     uint64_t *data = (uint64_t*) buf;
  78
  79     timer_data.frequency = mic_frequency;
  80     memcpy(data++, &(timer_data.frequency), sizeof(uint64_t));
  81
  82     for (int i = 0; i < c_offload_target_max_phase; i++) {
  83         memcpy(data++, &(timer_data.phases[i].total), sizeof(uint64_t));
  84     }
  85 }
  86
  87 #endif // TIMING_SUPPORT