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/*
* Copyright (c) 2009 Princeton University, and
* Regents of the University of California
* 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.
*
* Authors: Hangsheng Wang (Orion 1.0, Princeton)
* Xinping Zhu (Orion 1.0, Princeton)
* Xuning Chen (Orion 1.0, Princeton)
* Bin Li (Orion 2.0, Princeton)
* Kambiz Samadi (Orion 2.0, UC San Diego)
*/
#include <cassert>
#include <iostream>
#include "mem/ruby/network/orion/Crossbar/MatrixCrossbar.hh"
#include "mem/ruby/network/orion/TechParameter.hh"
using namespace std;
MatrixCrossbar::MatrixCrossbar(
const string& conn_type_str_,
const string& trans_type_str_,
uint32_t num_in_,
uint32_t num_out_,
uint32_t data_width_,
uint32_t num_in_seg_,
uint32_t num_out_seg_,
double len_in_wire_,
double len_out_wire_,
const TechParameter* tech_param_ptr_
) : Crossbar(
MATRIX_CROSSBAR, conn_type_str_, trans_type_str_,
num_in_, num_out_, data_width_, num_in_seg_, num_out_seg_,
0, tech_param_ptr_)
{
assert(len_in_wire_ == len_in_wire_);
assert(len_out_wire_ == len_out_wire_);
m_len_in_wire = len_in_wire_;
m_len_out_wire = len_out_wire_;
init();
}
MatrixCrossbar::~MatrixCrossbar()
{}
double MatrixCrossbar::get_dynamic_energy(bool is_max_) const
{
double e_atomic;
double e_access = 0;
e_atomic = m_e_chg_in*m_data_width*(is_max_? 1:0.5);
e_access += e_atomic;
e_atomic = m_e_chg_out*m_data_width*(is_max_? 1:0.5);
e_access += e_atomic;
e_atomic = m_e_chg_ctr;
e_access += e_atomic;
return e_access;
}
void MatrixCrossbar::init()
{
// FIXME: need accurate spacing
double CrsbarCellWidth = m_tech_param_ptr->get_CrsbarCellWidth();
double CrsbarCellHeight = m_tech_param_ptr->get_CrsbarCellHeight();
double len_in = m_num_out*m_data_width*CrsbarCellWidth;
double len_out = m_num_in*m_data_width*CrsbarCellHeight;
if(len_in > m_len_in_wire) m_len_in_wire = len_in;
if(len_out > m_len_out_wire) m_len_out_wire = len_out;
double CC3metal = m_tech_param_ptr->get_CC3metal();
m_cap_in_wire = CC3metal*m_len_in_wire;
m_cap_out_wire = CC3metal*m_len_out_wire;
double Cmetal = m_tech_param_ptr->get_Cmetal();
m_cap_ctr_wire = Cmetal*m_len_in_wire/2.0;
m_len_req_wire = m_len_in_wire;
double e_factor = m_tech_param_ptr->get_EnergyFactor();
m_e_chg_in = calc_in_cap()*e_factor;
m_e_chg_out = calc_out_cap(m_num_out)*e_factor;
//FIXME: wire length estimation, really reset?
//control signal should reset after transmission is done, so no 1/2
m_e_chg_ctr = calc_ctr_cap(m_cap_ctr_wire, 0, 0)*e_factor;
m_e_chg_int = 0;
m_i_static = calc_i_static();
return;
}
double MatrixCrossbar::calc_i_static()
{
double Woutdrvnandn = m_tech_param_ptr->get_Woutdrvnandn();
double Woutdrvnandp = m_tech_param_ptr->get_Woutdrvnandp();
double Woutdrvnorn = m_tech_param_ptr->get_Woutdrvnorn();
double Woutdrvnorp = m_tech_param_ptr->get_Woutdrvnorp();
double Wdecinvn = m_tech_param_ptr->get_Wdecinvn();
double Wdecinvp = m_tech_param_ptr->get_Wdecinvp();
double Woutdrivern = m_tech_param_ptr->get_Woutdrivern();
double Woutdriverp = m_tech_param_ptr->get_Woutdriverp();
double NAND2_TAB_0 = m_tech_param_ptr->get_NAND2_TAB(0);
double NAND2_TAB_1 = m_tech_param_ptr->get_NAND2_TAB(1);
double NAND2_TAB_2 = m_tech_param_ptr->get_NAND2_TAB(2);
double NAND2_TAB_3 = m_tech_param_ptr->get_NAND2_TAB(3);
double NOR2_TAB_0 = m_tech_param_ptr->get_NOR2_TAB(0);
double NOR2_TAB_1 = m_tech_param_ptr->get_NOR2_TAB(1);
double NOR2_TAB_2 = m_tech_param_ptr->get_NOR2_TAB(2);
double NOR2_TAB_3 = m_tech_param_ptr->get_NOR2_TAB(3);
double NMOS_TAB_0 = m_tech_param_ptr->get_NMOS_TAB(0);
double PMOS_TAB_0 = m_tech_param_ptr->get_PMOS_TAB(0);
double i_static = 0;
// tri-state buffers
i_static += ((Woutdrvnandp*(NAND2_TAB_0+NAND2_TAB_1+NAND2_TAB_2)+Woutdrvnandn*NAND2_TAB_3)/4
+ (Woutdrvnorp*NOR2_TAB_0+Woutdrvnorn*(NOR2_TAB_1+NOR2_TAB_2+NOR2_TAB_3))/4
+ Woutdrivern*NMOS_TAB_0+Woutdriverp*PMOS_TAB_0)*m_num_in*m_num_out*m_data_width;
// input driver
i_static += (Wdecinvn*NMOS_TAB_0+Wdecinvp*PMOS_TAB_0)*m_num_in*m_data_width;
// output driver
i_static += (Woutdrivern*NMOS_TAB_0+Woutdriverp*PMOS_TAB_0)*m_num_out*m_data_width;
// control siganl inverter
i_static += (Wdecinvn*NMOS_TAB_0+Wdecinvp*PMOS_TAB_0)*m_num_in*m_num_out;
return i_static;
}
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