gem5/ext/mcpat/basic_components.cc

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#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;
}