src/cpu/pred/multiperspective_perceptron_8KB.cc

   1 /*
   2  * Copyright 2019 Texas A&M University
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are met:
   6  *
   7  * 1. Redistributions of source code must retain the above copyright notice,
   8  *    this list of conditions and the following disclaimer.
   9  *
  10  * 2. Redistributions in binary form must reproduce the above copyright notice,
  11  *    this list of conditions and the following disclaimer in the documentation
  12  *    and/or other materials provided with the distribution.
  13  *
  14  * 3. Neither the name of the copyright holder nor the names of its
  15  *    contributors may be used to endorse or promote products derived from this
  16  *    software without specific prior written permission.
  17  *
  18  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  *  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  *  Author: Daniel A. Jiménez
  31  *  Adapted to gem5 by: Javier Bueno Hedo
  32  *
  33  */
  34
  35 /*
  36  * Multiperspective Perceptron Predictor (by Daniel A. Jiménez)
  37  * - 8KB version
  38  */
  39
  40 #include "cpu/pred/multiperspective_perceptron_8KB.hh"
  41
  42 MultiperspectivePerceptron8KB::MultiperspectivePerceptron8KB(
  43         const MultiperspectivePerceptron8KBParams *p)
  44     : MultiperspectivePerceptron(p)
  45 {
  46 }
  47
  48 void
  49 MultiperspectivePerceptron8KB::createSpecs() {
  50     addSpec(new BIAS(2.40625, 0, 6, *this));
  51     addSpec(new GHIST(0, 19, 1.4375, 0, 6, *this));
  52     addSpec(new GHIST(0, 65, 1.0, 0, 6, *this));
  53     addSpec(new GHIST(21, 64, 1.0, 0, 6, *this));
  54     addSpec(new GHIST(75, 150, 1.0625, 0, 6, *this));
  55     addSpec(new GHISTMODPATH(0, 7, 3, 1.625, 0, 6, *this));
  56     addSpec(new GHISTPATH(11, 2, -1, 1.25, 0, 6, *this));
  57     addSpec(new GHISTPATH(15, 4, -1, 1.125, 0, 6, *this));
  58     addSpec(new GHISTPATH(31, 1, -1, 1.40625, 0, 6, *this));
  59     addSpec(new GHISTPATH(7, 1, -1, 1.5, 600, 6, *this));
  60     addSpec(new IMLI(4, 1.28125, 375, 6, *this));
  61     addSpec(new LOCAL(-1, 1.5625, 512, 6, *this));
  62     addSpec(new RECENCY(14, 4, -1, 1.25, 0, 6, *this));
  63     addSpec(new RECENCYPOS(31, 1.875, 0, 6, *this));
  64     addSpec(new SGHISTPATH(0, 4, 3, 1.65625, 0, 6, *this));
  65     addSpec(new SGHISTPATH(1, 2, 5, 2.53125, 0, 5, *this));
  66 }
  67
  68     MultiperspectivePerceptron8KB*
  69 MultiperspectivePerceptron8KBParams::create()
  70 {
  71     return new MultiperspectivePerceptron8KB(this);
  72 }