diff options
Diffstat (limited to 'src/mem/ruby/network/orion/Crossbar/Crossbar.cc')
| -rw-r--r-- | src/mem/ruby/network/orion/Crossbar/Crossbar.cc | 393 |
1 files changed, 0 insertions, 393 deletions
diff --git a/src/mem/ruby/network/orion/Crossbar/Crossbar.cc b/src/mem/ruby/network/orion/Crossbar/Crossbar.cc deleted file mode 100644 index 5f0f2206d..000000000 --- a/src/mem/ruby/network/orion/Crossbar/Crossbar.cc +++ /dev/null @@ -1,393 +0,0 @@ -/* - * Copyright (c) 2009 Princeton University - * Copyright (c) 2009 The 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/Crossbar.hh" -#include "mem/ruby/network/orion/Crossbar/MatrixCrossbar.hh" -#include "mem/ruby/network/orion/Crossbar/MultreeCrossbar.hh" -#include "mem/ruby/network/orion/OrionConfig.hh" -#include "mem/ruby/network/orion/TechParameter.hh" - -using namespace std; - -Crossbar::Crossbar( - CrossbarModel xbar_model_, - 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_, - uint32_t degree_, - const TechParameter* tech_param_ptr_ - ) -{ - m_xbar_model = xbar_model_; - if (m_xbar_model != NO_MODEL) - { - assert((num_in_ == num_in_) && (num_in_ != 0)); - assert((num_out_ == num_out_) && (num_out_ != 0)); - assert((data_width_ == data_width_) && (data_width_ != 0)); - assert(num_in_seg_ == num_in_seg_); - assert(num_out_seg_ == num_out_seg_); - - set_conn_type(conn_type_str_); - set_trans_type(trans_type_str_); - m_num_in = num_in_; - m_num_out = num_out_; - m_num_in_seg = num_in_seg_; - m_num_out_seg = num_out_seg_; - m_data_width = data_width_; - m_degree = degree_; - m_tech_param_ptr = tech_param_ptr_; - } - else - { - cerr << "ERROR at " << __FILE__ << " " << __LINE__ << endl; - } -} - -Crossbar::~Crossbar() -{} - -double Crossbar::get_static_power() const -{ - double vdd = m_tech_param_ptr->get_vdd(); - double SCALE_S = m_tech_param_ptr->get_SCALE_S(); - return (m_i_static*vdd*SCALE_S); -} - -void Crossbar::print_all() const -{ - cout << "Crossbar" << endl; - cout << "\t" << "Traversal = " << get_dynamic_energy(false) << endl; - cout << "\t" << "Static power = " << get_static_power() << endl; - return; -} - -void Crossbar::set_conn_type(const string& conn_type_str_) -{ - if (conn_type_str_ == string("TRANS_GATE")) - { - m_conn_type = TRANS_GATE; - } - else if (conn_type_str_ == string("TRISTATE_GATE")) - { - m_conn_type = TRISTATE_GATE; - } - else - { - cerr << "Invalid connect type: '" << conn_type_str_ << "'. Use TRANS_GATE as default." << endl; - m_conn_type = TRANS_GATE; - } - return; -} - -void Crossbar::set_trans_type(const string& trans_type_str_) -{ - if (trans_type_str_ == string("NP_GATE")) - { - m_trans_type = NP_GATE; - } - else if (trans_type_str_ == string("N_GATE")) - { - m_trans_type = N_GATE; - } - else - { - cerr << "Invalid trans type: '" << trans_type_str_ << "'. Use N_GATE as default." << endl; - m_trans_type = N_GATE; - } -} - -double Crossbar::calc_in_cap() -{ - double total_cap = 0; - - // part 1: wire cap - total_cap += m_cap_in_wire; - - double trans_cap = 0; - // part 2: drain cap of transmission gate or gate cap of tri-state gate - if (m_conn_type == TRANS_GATE) - { - //FIXME: resizing strategy - double Wmemcellr = m_tech_param_ptr->get_Wmemcellr(); - double nsize = Wmemcellr; - double Wdecinvn = m_tech_param_ptr->get_Wdecinvn(); - double Wdecinvp = m_tech_param_ptr->get_Wdecinvp(); - double psize = nsize*Wdecinvp/Wdecinvn; - trans_cap = m_tech_param_ptr->calc_draincap(nsize, TechParameter::NCH, 1); - if (m_trans_type == NP_GATE) - { - trans_cap += m_tech_param_ptr->calc_draincap(psize, TechParameter::PCH, 1); - } - } - else if (m_conn_type == TRISTATE_GATE) - { - 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(); - trans_cap = m_tech_param_ptr->calc_gatecap(Woutdrvnandn+Woutdrvnandp, 0) - + m_tech_param_ptr->calc_gatecap(Woutdrvnorn+Woutdrvnorp, 0); - } - total_cap += trans_cap*m_num_out; - - // segmented crossbar - if (m_num_in_seg > 1) - { - total_cap *= (m_num_in_seg+1)/(m_num_in_seg*2); - // input capacitance of tri-state buffer - 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(); - total_cap += (m_num_in_seg+2)*(m_num_in_seg-1)/(m_num_in_seg*2)*(m_tech_param_ptr->calc_gatecap(Woutdrvnandn+Woutdrvnandp, 0)+m_tech_param_ptr->calc_gatecap(Woutdrvnorn+Woutdrvnorp, 0)); - // output capacitance of tri-state buffer - double Woutdrivern = m_tech_param_ptr->get_Woutdrivern(); - double Woutdriverp = m_tech_param_ptr->get_Woutdriverp(); - total_cap += (m_num_in_seg-1)/2*(m_tech_param_ptr->calc_draincap(Woutdrivern, TechParameter::NCH, 1)+m_tech_param_ptr->calc_draincap(Woutdriverp, TechParameter::PCH, 1)); - } - - // part 3: input driver - //FIXME: how to specify timing - double period = m_tech_param_ptr->get_period(); - double psize = m_tech_param_ptr->calc_driver_psize(total_cap, period/3.0); - double Wdecinvn = m_tech_param_ptr->get_Wdecinvn(); - double Wdecinvp = m_tech_param_ptr->get_Wdecinvp(); - double nsize = psize*Wdecinvn/Wdecinvp; - total_cap += m_tech_param_ptr->calc_draincap(nsize, TechParameter::NCH, 1)+m_tech_param_ptr->calc_draincap(psize, TechParameter::PCH, 1)+m_tech_param_ptr->calc_gatecap(nsize+psize, 0); - - return total_cap/2.0; -} - -double Crossbar::calc_out_cap(uint32_t num_in_) -{ - double total_cap = 0; - - // part 1: wire cap - total_cap += m_cap_out_wire; - - double trans_cap = 0; - // part 2: drain cap of transmission gate or tri-state gate - if (m_conn_type == TRANS_GATE) - { - // FIXME: resizing strategy - double Wmemcellr = m_tech_param_ptr->get_Wmemcellr(); - double nsize = Wmemcellr; - double Wdecinvn = m_tech_param_ptr->get_Wdecinvn(); - double Wdecinvp = m_tech_param_ptr->get_Wdecinvp(); - double psize = nsize*Wdecinvp/Wdecinvn; - - trans_cap = m_tech_param_ptr->calc_draincap(nsize, TechParameter::NCH, 1); - if (m_trans_type == NP_GATE) - { - trans_cap += m_tech_param_ptr->calc_draincap(psize, TechParameter::PCH, 1); - } - } - else if (m_conn_type == TRISTATE_GATE) - { - double Woutdrivern = m_tech_param_ptr->get_Woutdrivern(); - double Woutdriverp = m_tech_param_ptr->get_Woutdriverp(); - trans_cap = m_tech_param_ptr->calc_draincap(Woutdrivern, TechParameter::NCH, 1)+m_tech_param_ptr->calc_draincap(Woutdriverp, TechParameter::PCH, 1); - } - total_cap += trans_cap*num_in_; - - // segmented crossbar - if (m_num_out_seg > 1) - { - total_cap *= (m_num_out_seg+1)/(m_num_out_seg*2); - // input capacitance of tri-state buffer - 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(); - total_cap += (m_num_out_seg+2)*(m_num_out_seg-1)/(m_num_out_seg*2)*(m_tech_param_ptr->calc_gatecap(Woutdrvnandn+Woutdrvnandp, 0)+m_tech_param_ptr->calc_gatecap(Woutdrvnorn+Woutdrvnorp, 0)); - // output capacitance of tri-state buffer - double Woutdrivern = m_tech_param_ptr->get_Woutdrivern(); - double Woutdriverp = m_tech_param_ptr->get_Woutdriverp(); - total_cap += (m_num_out_seg-1)/2*(m_tech_param_ptr->calc_draincap(Woutdrivern, TechParameter::NCH, 1)+m_tech_param_ptr->calc_draincap(Woutdriverp, TechParameter::PCH, 1)); - } - - // part 3: output driver - double Woutdrivern = m_tech_param_ptr->get_Woutdrivern(); - double Woutdriverp = m_tech_param_ptr->get_Woutdriverp(); - total_cap += m_tech_param_ptr->calc_draincap(Woutdrivern, TechParameter::NCH, 1)+m_tech_param_ptr->calc_draincap(Woutdriverp, TechParameter::PCH, 1)+m_tech_param_ptr->calc_gatecap(Woutdrivern+Woutdriverp, 0); - - return total_cap/2.0; -} - -double Crossbar::calc_int_cap() -{ - double total_cap = 0; - - if (m_conn_type == TRANS_GATE) - { - // part 1: drain cap of transmission gate - //FIXME: Wmemcellr and resize - double Wmemcellr = m_tech_param_ptr->get_Wmemcellr(); - double nsize = Wmemcellr; - double trans_cap = m_tech_param_ptr->calc_draincap(nsize, TechParameter::NCH, 1); - if (m_trans_type == NP_GATE) - { - double Wdecinvn = m_tech_param_ptr->get_Wdecinvn(); - double Wdecinvp = m_tech_param_ptr->get_Wdecinvp(); - double psize = nsize*Wdecinvp/Wdecinvn; - trans_cap += m_tech_param_ptr->calc_draincap(psize, TechParameter::PCH, 1); - } - total_cap += trans_cap*(m_degree+1); - } - else if (m_conn_type == TRISTATE_GATE) - { - // part 1: drain cap of tri-state gate - double Woutdrivern = m_tech_param_ptr->get_Woutdrivern(); - double Woutdriverp = m_tech_param_ptr->get_Woutdriverp(); - - double trans_cap = (m_tech_param_ptr->calc_draincap(Woutdrivern, TechParameter::NCH, 1)+m_tech_param_ptr->calc_draincap(Woutdriverp, TechParameter::PCH, 1))*m_degree; - // part 2: gate cap of tri-state gate - 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(); - trans_cap += m_tech_param_ptr->calc_gatecap(Woutdrvnandn+Woutdrvnandp, 0)+m_tech_param_ptr->calc_gatecap(Woutdrvnorn+Woutdrvnorp, 0); - total_cap += trans_cap; - } - - return total_cap/2.0; -} - -double Crossbar::calc_ctr_cap(double cap_wire_, bool prev_ctr_, bool next_ctr_) -{ - double total_cap = 0; - - // part 1: wire cap - total_cap += cap_wire_; - - double trans_cap = 0; - // part 2: gate cap of transmission gate or tri-state gate - if (m_conn_type == TRANS_GATE) - { - //FIXME Wmemcellr and resize - double Wmemcellr = m_tech_param_ptr->get_Wmemcellr(); - double nsize = Wmemcellr; - trans_cap = m_tech_param_ptr->calc_gatecap(nsize, 0); - if (m_trans_type == NP_GATE) - { - double Wdecinvn = m_tech_param_ptr->get_Wdecinvn(); - double Wdecinvp = m_tech_param_ptr->get_Wdecinvp(); - double psize = nsize*Wdecinvp/Wdecinvn; - trans_cap += m_tech_param_ptr->calc_gatecap(psize, 0); - } - } - else if (m_conn_type == TRISTATE_GATE) - { - 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(); - trans_cap = m_tech_param_ptr->calc_gatecap(Woutdrvnandn+Woutdrvnandp, 0) - + m_tech_param_ptr->calc_gatecap(Woutdrvnorn+Woutdrvnorp, 0); - } - total_cap += trans_cap*m_data_width; - - // part 3: inverter - if (!((m_conn_type == TRANS_GATE) && (m_trans_type == N_GATE) && (!prev_ctr_))) - { - double Wdecinvn = m_tech_param_ptr->get_Wdecinvn(); - double Wdecinvp = m_tech_param_ptr->get_Wdecinvp(); - total_cap += m_tech_param_ptr->calc_draincap(Wdecinvn, TechParameter::NCH, 1)+m_tech_param_ptr->calc_draincap(Wdecinvp, TechParameter::PCH, 1) - + m_tech_param_ptr->calc_gatecap(Wdecinvn+Wdecinvp, 0); - } - - double WdecNORn = m_tech_param_ptr->get_WdecNORn(); - double WdecNORp = m_tech_param_ptr->get_WdecNORp(); - // part 4: drain cap of previous level control signal - if (prev_ctr_) - { - // FIXME: need actual size, use decoder data for now - total_cap += m_degree*m_tech_param_ptr->calc_draincap(WdecNORn, TechParameter::NCH, 1) - +m_tech_param_ptr->calc_draincap(WdecNORp, TechParameter::PCH, m_degree); - } - - // part 5: gate cap of next level control signal - if (next_ctr_) - { - // FIXME: need actual size, use decoder data for now - total_cap += m_tech_param_ptr->calc_gatecap(WdecNORn+WdecNORp, m_degree*40+20); - } - - return total_cap; -} - -Crossbar* Crossbar::create_crossbar( - const string& xbar_model_str_, - uint32_t num_in_, - uint32_t num_out_, - uint32_t data_width_, - const OrionConfig* orion_cfg_ptr_ - ) -{ - if (xbar_model_str_ == string("MATRIX_CROSSBAR")) - { - const string& conn_type_str = orion_cfg_ptr_->get<string>("CROSSBAR_CONNECT_TYPE"); - const string& trans_type_str = orion_cfg_ptr_->get<string>("CROSSBAR_TRANS_GATE_TYPE"); - uint32_t num_in_seg = orion_cfg_ptr_->get<uint32_t>("CROSSBAR_NUM_IN_SEG"); - uint32_t num_out_seg = orion_cfg_ptr_->get<uint32_t>("CROSSBAR_NUM_OUT_SEG"); - double len_in_wire = orion_cfg_ptr_->get<double>("CROSSBAR_LEN_IN_WIRE"); - double len_out_wire = orion_cfg_ptr_->get<double>("CROSSBAR_LEN_OUT_WIRE"); - const TechParameter* tech_param_ptr = orion_cfg_ptr_->get_tech_param_ptr(); - return new MatrixCrossbar(conn_type_str, trans_type_str, - num_in_, num_out_, data_width_, num_in_seg, num_out_seg, - len_in_wire, len_out_wire, tech_param_ptr); - } - else if (xbar_model_str_ == string("MULTREE_CROSSBAR")) - { - const string& conn_type_str = orion_cfg_ptr_->get<string>("CROSSBAR_CONNECT_TYPE"); - const string& trans_type_str = orion_cfg_ptr_->get<string>("CROSSBAR_TRANS_GATE_TYPE"); - uint32_t degree = orion_cfg_ptr_->get<uint32_t>("CROSSBAR_MUX_DEGREE"); - const TechParameter* tech_param_ptr = orion_cfg_ptr_->get_tech_param_ptr(); - return new MultreeCrossbar(conn_type_str, trans_type_str, - num_in_, num_out_, data_width_, degree, tech_param_ptr); - } - else - { - cerr << "WARNING: No Crossbar model" << endl; - return (Crossbar*)NULL; - } -} |