summaryrefslogtreecommitdiff
path: root/src/gpuwattch/noc.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/gpuwattch/noc.cc')
-rw-r--r--src/gpuwattch/noc.cc454
1 files changed, 0 insertions, 454 deletions
diff --git a/src/gpuwattch/noc.cc b/src/gpuwattch/noc.cc
deleted file mode 100644
index b7ccdb3..0000000
--- a/src/gpuwattch/noc.cc
+++ /dev/null
@@ -1,454 +0,0 @@
-/*****************************************************************************
- * 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.”
- *
- ***************************************************************************/
-/********************************************************************
- * Modified by:
- ** Jingwen Leng, Univeristy of Texas, Austin * Syed Gilani,
- *University of Wisconsin–Madison * Tayler Hetherington,
- *University of British Columbia * Ahmed ElTantawy, University of
- *British Columbia *
- ********************************************************************/
-
-#include "noc.h"
-#include <assert.h>
-#include <algorithm>
-#include <cmath>
-#include <iostream>
-#include <string>
-#include "XML_Parse.h"
-#include "cacti/basic_circuit.h"
-#include "const.h"
-#include "io.h"
-#include "parameter.h"
-
-NoC::NoC(ParseXML* XML_interface, int ithNoC_, InputParameter* interface_ip_,
- double M_traffic_pattern_, double link_len_)
- : XML(XML_interface),
- ithNoC(ithNoC_),
- interface_ip(*interface_ip_),
- router(0),
- link_bus(0),
- link_bus_exist(false),
- router_exist(false),
- M_traffic_pattern(M_traffic_pattern_) {
- /*
- * initialize, compute and optimize individual components.
- */
-
- if (XML->sys.Embedded) {
- interface_ip.wt = Global_30;
- interface_ip.wire_is_mat_type = 0;
- interface_ip.wire_os_mat_type = 1;
- } else {
- interface_ip.wt = Global;
- interface_ip.wire_is_mat_type = 2;
- interface_ip.wire_os_mat_type = 2;
- }
- set_noc_param();
- local_result = init_interface(&interface_ip);
- scktRatio = g_tp.sckt_co_eff;
-
- if (nocdynp.type) { /*
- * if NOC compute router, router links must be computed
- * separately and called from external since total chip
- * area must be known first
- */
- init_router();
- } else {
- init_link_bus(link_len_); // if bus compute bus
- }
-
- // //clock power
- // clockNetwork.init_wire_external(is_default, &interface_ip);
- // clockNetwork.clk_area =area*1.1;//10% of placement overhead.
- // rule of thumb clockNetwork.end_wiring_level =5;//toplevel metal
- // clockNetwork.start_wiring_level =5;//toplevel metal
- // clockNetwork.num_regs = corepipe.tot_stage_vector;
- // clockNetwork.optimize_wire();
-}
-
-void NoC::init_router() {
- router = new MCPAT_Router(
- nocdynp.flit_size,
- nocdynp.virtual_channel_per_port * nocdynp.input_buffer_entries_per_vc,
- nocdynp.virtual_channel_per_port, &(g_tp.peri_global),
- nocdynp.input_ports, nocdynp.output_ports, M_traffic_pattern);
- // router->print_router();
- area.set_area(area.get_area() +
- router->area.get_area() * nocdynp.total_nodes);
-
- double long_channel_device_reduction =
- longer_channel_device_reduction(Uncore_device);
- router->power.readOp.longer_channel_leakage =
- router->power.readOp.leakage * long_channel_device_reduction;
- router->buffer.power.readOp.longer_channel_leakage =
- router->buffer.power.readOp.leakage * long_channel_device_reduction;
- router->crossbar.power.readOp.longer_channel_leakage =
- router->crossbar.power.readOp.leakage * long_channel_device_reduction;
- router->arbiter.power.readOp.longer_channel_leakage =
- router->arbiter.power.readOp.leakage * long_channel_device_reduction;
- router_exist = true;
-}
-
-void NoC ::init_link_bus(double link_len_) {
- // if (nocdynp.min_ports==1 )
- if (nocdynp.type)
- link_name = "Links";
- else
- link_name = "Bus";
-
- link_len = link_len_;
- assert(link_len > 0);
-
- interface_ip.throughput = nocdynp.link_throughput / nocdynp.clockRate;
- interface_ip.latency = nocdynp.link_latency / nocdynp.clockRate;
-
- link_len /= (nocdynp.horizontal_nodes + nocdynp.vertical_nodes) / 2;
-
- if (nocdynp.total_nodes > 1)
- link_len /= 2; // All links are shared by neighbors
- link_bus = new interconnect(name, Uncore_device, 1, 1, nocdynp.flit_size,
- link_len, &interface_ip, 3, true /*pipelinable*/,
- nocdynp.route_over_perc);
-
- link_bus_tot_per_Router.area.set_area(
- link_bus_tot_per_Router.area.get_area() +
- link_bus->area.get_area() * nocdynp.global_linked_ports);
-
- area.set_area(area.get_area() +
- link_bus_tot_per_Router.area.get_area() * nocdynp.total_nodes);
- link_bus_exist = true;
-}
-void NoC::computeEnergy(bool is_tdp) {
- // power_point_product_masks
- double pppm_t[4] = {1, 1, 1, 1};
- double M = nocdynp.duty_cycle;
- // nocdynp.executionTime=XML->sys.total_cycles/(XML->sys.target_core_clockrate*1e6);//Syed
- // cout<<"NOC Total Cycles: "<<XML->sys.total_cycles<<endl;
- // cout<<"NOC Clock Rate: "<<XML->sys.target_core_clockrate<<endl;
- if (is_tdp) {
- // init stats for TDP
- stats_t.readAc.access = M;
- tdp_stats = stats_t;
- if (router_exist) {
- set_pppm(pppm_t, 1 * M, 1, 1, 1); // reset traffic pattern
- router->power = router->power * pppm_t;
- set_pppm(pppm_t, nocdynp.total_nodes, nocdynp.total_nodes,
- nocdynp.total_nodes, nocdynp.total_nodes);
- power = power + router->power * pppm_t;
- }
- if (link_bus_exist) {
- if (nocdynp.type)
- set_pppm(pppm_t, 1 * M_traffic_pattern * M * (nocdynp.min_ports - 1),
- nocdynp.global_linked_ports, nocdynp.global_linked_ports,
- nocdynp.global_linked_ports);
- // reset traffic pattern; local port do not have router links
- else
- set_pppm(pppm_t, 1 * M_traffic_pattern * M * (nocdynp.min_ports),
- nocdynp.global_linked_ports, nocdynp.global_linked_ports,
- nocdynp.global_linked_ports); // reset traffic pattern
-
- link_bus_tot_per_Router.power = link_bus->power * pppm_t;
-
- set_pppm(pppm_t, nocdynp.total_nodes, nocdynp.total_nodes,
- nocdynp.total_nodes, nocdynp.total_nodes);
- power = power + link_bus_tot_per_Router.power * pppm_t;
- }
- } else {
- rt_power.reset();
- router->buffer.rt_power.reset();
- router->crossbar.rt_power.reset();
- router->arbiter.rt_power.reset();
- router->rt_power.reset();
- // link_bus->rt_power.reset();
-
- // init stats for runtime power (RTP)
- stats_t.readAc.access = XML->sys.NoC[ithNoC].total_accesses;
- // cout<<"NOC(computeEnergy) read accesses: "<< stats_t.readAc.access<<endl;
- rtp_stats = stats_t;
- set_pppm(pppm_t, 1, 0, 0, 0);
- if (router_exist) {
- router->buffer.rt_power.readOp.dynamic =
- (router->buffer.power.readOp.dynamic +
- router->buffer.power.writeOp.dynamic) *
- rtp_stats.readAc.access;
- router->crossbar.rt_power.readOp.dynamic =
- router->crossbar.power.readOp.dynamic * rtp_stats.readAc.access;
- router->arbiter.rt_power.readOp.dynamic =
- router->arbiter.power.readOp.dynamic * rtp_stats.readAc.access;
-
- router->rt_power =
- router->rt_power +
- (router->buffer.rt_power + router->crossbar.rt_power +
- router->arbiter.rt_power) *
- pppm_t +
- router->power * pppm_lkg; // TDP power must be calculated first!
- rt_power = rt_power + router->rt_power;
- }
- if (link_bus_exist) {
- link_bus->rt_power.reset();
- set_pppm(pppm_t, rtp_stats.readAc.access, 1, 1, rtp_stats.readAc.access);
- link_bus->rt_power = link_bus->power * pppm_t;
- rt_power = rt_power + link_bus->rt_power;
- }
- }
-}
-
-void NoC::displayEnergy(uint32_t indent, int plevel, bool is_tdp) {
- string indent_str(indent, ' ');
- string indent_str_next(indent + 2, ' ');
- bool long_channel = XML->sys.longer_channel_device;
-
- double M = M_traffic_pattern * nocdynp.duty_cycle;
- /*only router as a whole has been applied the M_traffic_pattern(0.6 by
- * default) factor in router.cc; When power of crossbars, arbiters, etc need
- * to be displayed, the M_traffic_pattern factor need to be applied together
- * with McPAT's extra traffic pattern.
- * */
- if (is_tdp) {
- cout << name << endl;
- cout << indent_str << "Area = " << area.get_area() * 1e-6 << " mm^2"
- << endl;
- cout << indent_str
- << "Peak Dynamic = " << power.readOp.dynamic * nocdynp.clockRate
- << " W" << endl;
- cout << indent_str << "Subthreshold Leakage = "
- << (long_channel ? power.readOp.longer_channel_leakage
- : power.readOp.leakage)
- << " W" << endl;
- cout << indent_str << "Gate Leakage = " << power.readOp.gate_leakage << " W"
- << endl;
- cout << indent_str << "Runtime Dynamic = "
- << rt_power.readOp.dynamic / nocdynp.executionTime << " W" << endl;
- // cout << indent_str<< "Execution Time = " << nocdynp.executionTime << " s"
- // << endl;
- cout << endl;
-
- if (router_exist) {
- cout << indent_str << "Router: " << endl;
- cout << indent_str_next << "Area = " << router->area.get_area() * 1e-6
- << " mm^2" << endl;
- cout << indent_str_next << "Peak Dynamic = "
- << router->power.readOp.dynamic * nocdynp.clockRate << " W" << endl;
- cout << indent_str_next << "Subthreshold Leakage = "
- << (long_channel ? router->power.readOp.longer_channel_leakage
- : router->power.readOp.leakage)
- << " W" << endl;
- cout << indent_str_next
- << "Gate Leakage = " << router->power.readOp.gate_leakage << " W"
- << endl;
- cout << indent_str_next << "Runtime Dynamic = "
- << router->rt_power.readOp.dynamic / nocdynp.executionTime << " W"
- << endl;
- cout << endl;
- if (plevel > 2) {
- cout << indent_str << indent_str << "Virtual Channel Buffer:" << endl;
- cout << indent_str << indent_str_next << "Area = "
- << router->buffer.area.get_area() * 1e-6 * nocdynp.input_ports
- << " mm^2" << endl;
- cout << indent_str << indent_str_next << "Peak Dynamic = "
- << (router->buffer.power.readOp.dynamic +
- router->buffer.power.writeOp.dynamic) *
- nocdynp.min_ports * M * nocdynp.clockRate
- << " W" << endl;
- cout << indent_str << indent_str_next << "Subthreshold Leakage = "
- << (long_channel
- ? router->buffer.power.readOp.longer_channel_leakage *
- nocdynp.input_ports
- : router->buffer.power.readOp.leakage *
- nocdynp.input_ports)
- << " W" << endl;
- cout << indent_str << indent_str_next << "Gate Leakage = "
- << router->buffer.power.readOp.gate_leakage * nocdynp.input_ports
- << " W" << endl;
- cout << indent_str << indent_str_next << "Runtime Dynamic = "
- << router->buffer.rt_power.readOp.dynamic / nocdynp.executionTime
- << " W" << endl;
- cout << endl;
- cout << indent_str << indent_str << "Crossbar:" << endl;
- cout << indent_str << indent_str_next
- << "Area = " << router->crossbar.area.get_area() * 1e-6 << " mm^2"
- << endl;
- cout << indent_str << indent_str_next << "Peak Dynamic = "
- << router->crossbar.power.readOp.dynamic * nocdynp.clockRate *
- nocdynp.min_ports * M
- << " W" << endl;
- cout << indent_str << indent_str_next << "Subthreshold Leakage = "
- << (long_channel
- ? router->crossbar.power.readOp.longer_channel_leakage
- : router->crossbar.power.readOp.leakage)
- << " W" << endl;
- cout << indent_str << indent_str_next
- << "Gate Leakage = " << router->crossbar.power.readOp.gate_leakage
- << " W" << endl;
- cout << indent_str << indent_str_next << "Runtime Dynamic = "
- << router->crossbar.rt_power.readOp.dynamic / nocdynp.executionTime
- << " W" << endl;
- cout << endl;
- cout << indent_str << indent_str << "Arbiter:" << endl;
- cout << indent_str << indent_str_next << "Peak Dynamic = "
- << router->arbiter.power.readOp.dynamic * nocdynp.clockRate *
- nocdynp.min_ports * M
- << " W" << endl;
- cout << indent_str << indent_str_next << "Subthreshold Leakage = "
- << (long_channel
- ? router->arbiter.power.readOp.longer_channel_leakage
- : router->arbiter.power.readOp.leakage)
- << " W" << endl;
- cout << indent_str << indent_str_next
- << "Gate Leakage = " << router->arbiter.power.readOp.gate_leakage
- << " W" << endl;
- cout << indent_str << indent_str_next << "Runtime Dynamic = "
- << router->arbiter.rt_power.readOp.dynamic / nocdynp.executionTime
- << " W" << endl;
- cout << endl;
- }
- }
- if (link_bus_exist) {
- cout << indent_str << (nocdynp.type ? "Per Router " : "") << link_name
- << ": " << endl;
- cout << indent_str_next
- << "Area = " << link_bus_tot_per_Router.area.get_area() * 1e-6
- << " mm^2" << endl;
- cout << indent_str_next << "Peak Dynamic = "
- << link_bus_tot_per_Router.power.readOp.dynamic * nocdynp.clockRate
- << " W" << endl;
- cout << indent_str_next << "Subthreshold Leakage = "
- << (long_channel
- ? link_bus_tot_per_Router.power.readOp.longer_channel_leakage
- : link_bus_tot_per_Router.power.readOp.leakage)
- << " W" << endl;
- cout << indent_str_next << "Gate Leakage = "
- << link_bus_tot_per_Router.power.readOp.gate_leakage << " W" << endl;
- cout << indent_str_next << "Runtime Dynamic = "
- << link_bus->rt_power.readOp.dynamic / nocdynp.executionTime << " W"
- << endl;
- cout << endl;
- }
- } else {
- // cout << indent_str_next << "Instruction Fetch Unit Peak
- // Dynamic
- //=
- //"
- //<< ifu->rt_power.readOp.dynamic*clockRate << " W" << endl;
- // cout
- //<< indent_str_next << "Instruction Fetch Unit Subthreshold Leakage = "
- // << ifu->rt_power.readOp.leakage <<" W" << endl; cout <<
- // indent_str_next << "Instruction Fetch Unit Gate Leakage = " <<
- // ifu->rt_power.readOp.gate_leakage << " W" << endl; cout <<
- // indent_str_next
- //<< "Load Store Unit Peak Dynamic = " <<
- // lsu->rt_power.readOp.dynamic*clockRate << " W" << endl;
- // cout
- // << indent_str_next << "Load Store Unit Subthreshold Leakage = " <<
- // lsu->rt_power.readOp.leakage << " W" << endl; cout <<
- // indent_str_next
- // << "Load Store Unit Gate Leakage = " <<
- // lsu->rt_power.readOp.gate_leakage
- //<< " W" << endl; cout << indent_str_next << "Memory Management
- // Unit Peak Dynamic = " << mmu->rt_power.readOp.dynamic*clockRate << " W"
- // <<
- // endl; cout << indent_str_next << "Memory Management Unit
- // Subthreshold Leakage = " << mmu->rt_power.readOp.leakage << " W" <<
- // endl; cout
- // << indent_str_next << "Memory Management Unit Gate Leakage = " <<
- // mmu->rt_power.readOp.gate_leakage << " W" << endl; cout <<
- // indent_str_next << "Execution Unit Peak Dynamic = " <<
- // exu->rt_power.readOp.dynamic*clockRate << " W" << endl;
- // cout
- // << indent_str_next << "Execution Unit Subthreshold Leakage = " <<
- // exu->rt_power.readOp.leakage << " W" << endl; cout <<
- // indent_str_next
- // << "Execution Unit Gate Leakage = " <<
- // exu->rt_power.readOp.gate_leakage
- //<< " W" << endl;
- }
-}
-
-void NoC::set_noc_param() {
- nocdynp.type = XML->sys.NoC[ithNoC].type;
- nocdynp.clockRate = XML->sys.NoC[ithNoC].clockrate;
- nocdynp.clockRate *= 1e6;
- nocdynp.executionTime =
- XML->sys.total_cycles / (XML->sys.target_core_clockrate * 1e6);
-
- nocdynp.flit_size = XML->sys.NoC[ithNoC].flit_bits;
- if (nocdynp.type) {
- nocdynp.input_ports = XML->sys.NoC[ithNoC].input_ports;
- nocdynp.output_ports = XML->sys.NoC[ithNoC].output_ports; // later minus 1
- nocdynp.min_ports = min(nocdynp.input_ports, nocdynp.output_ports);
- nocdynp.global_linked_ports =
- (nocdynp.input_ports - 1) + (nocdynp.output_ports - 1);
- /*
- * Except local i/o ports, all ports needs links( global_linked_ports);
- * However only min_ports can be fully active simultaneously
- * since the fewer number of ports (input or output ) is the bottleneck.
- */
- } else {
- nocdynp.input_ports = 1;
- nocdynp.output_ports = 1;
- nocdynp.min_ports = min(nocdynp.input_ports, nocdynp.output_ports);
- nocdynp.global_linked_ports = 1;
- }
-
- nocdynp.virtual_channel_per_port =
- XML->sys.NoC[ithNoC].virtual_channel_per_port;
- nocdynp.input_buffer_entries_per_vc =
- XML->sys.NoC[ithNoC].input_buffer_entries_per_vc;
-
- nocdynp.horizontal_nodes = XML->sys.NoC[ithNoC].horizontal_nodes;
- nocdynp.vertical_nodes = XML->sys.NoC[ithNoC].vertical_nodes;
- nocdynp.total_nodes = nocdynp.horizontal_nodes * nocdynp.vertical_nodes;
- nocdynp.duty_cycle = XML->sys.NoC[ithNoC].duty_cycle;
- nocdynp.has_global_link = XML->sys.NoC[ithNoC].has_global_link;
- nocdynp.link_throughput = XML->sys.NoC[ithNoC].link_throughput;
- nocdynp.link_latency = XML->sys.NoC[ithNoC].link_latency;
- nocdynp.chip_coverage = XML->sys.NoC[ithNoC].chip_coverage;
- nocdynp.route_over_perc = XML->sys.NoC[ithNoC].route_over_perc;
-
- assert(nocdynp.chip_coverage <= 1);
- assert(nocdynp.route_over_perc <= 1);
-
- if (nocdynp.type)
- name = "NOC";
- else
- name = "BUSES";
-}
-
-NoC ::~NoC() {
- if (router) {
- delete router;
- router = 0;
- }
- if (link_bus) {
- delete link_bus;
- link_bus = 0;
- }
-}
generated by cgit v1.3 (git 2.53.0) at 2026-07-11 18:01:29 +0000