gem5/ext/mcpat/basic_components.cc

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/*****************************************************************************
* McPAT
* SOFTWARE LICENSE AGREEMENT
* Copyright 2012 Hewlett-Packard Development Company, L.P.
* All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* 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 AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER 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.
*
***************************************************************************/
#include <cassert>
#include <cmath>
#include <iostream>
#include "basic_components.h"
double longer_channel_device_reduction(
enum Device_ty device_ty,
enum Core_type core_ty)
{
double longer_channel_device_percentage_core;
double longer_channel_device_percentage_uncore;
double longer_channel_device_percentage_llc;
double long_channel_device_reduction;
longer_channel_device_percentage_llc = 1.0;
longer_channel_device_percentage_uncore = 0.82;
if (core_ty==OOO)
{
longer_channel_device_percentage_core = 0.56;//0.54 Xeon Tulsa //0.58 Nehelam
//longer_channel_device_percentage_uncore = 0.76;//0.85 Nehelam
}
else
{
longer_channel_device_percentage_core = 0.8;//0.8;//Niagara
//longer_channel_device_percentage_uncore = 0.9;//Niagara
}
if (device_ty==Core_device)
{
long_channel_device_reduction = (1- longer_channel_device_percentage_core)
+ longer_channel_device_percentage_core * g_tp.peri_global.long_channel_leakage_reduction;
}
else if (device_ty==Uncore_device)
{
long_channel_device_reduction = (1- longer_channel_device_percentage_uncore)
+ longer_channel_device_percentage_uncore * g_tp.peri_global.long_channel_leakage_reduction;
}
else if (device_ty==LLC_device)
{
long_channel_device_reduction = (1- longer_channel_device_percentage_llc)
+ longer_channel_device_percentage_llc * g_tp.peri_global.long_channel_leakage_reduction;
}
else
{
cout<<"unknown device category"<<endl;
exit(0);
}
return long_channel_device_reduction;
}
statsComponents operator+(const statsComponents & x, const statsComponents & y)
{
statsComponents z;
z.access = x.access + y.access;
z.hit = x.hit + y.hit;
z.miss = x.miss + y.miss;
return z;
}
statsComponents operator*(const statsComponents & x, double const * const y)
{
statsComponents z;
z.access = x.access*y[0];
z.hit = x.hit*y[1];
z.miss = x.miss*y[2];
return z;
}
statsDef operator+(const statsDef & x, const statsDef & y)
{
statsDef z;
z.readAc = x.readAc + y.readAc;
z.writeAc = x.writeAc + y.writeAc;
z.searchAc = x.searchAc + y.searchAc;
return z;
}
statsDef operator*(const statsDef & x, double const * const y)
{
statsDef z;
z.readAc = x.readAc*y;
z.writeAc = x.writeAc*y;
z.searchAc = x.searchAc*y;
return z;
}