From a4a321028023cb9d65d533adaa3b6c2c3b49eee2 Mon Sep 17 00:00:00 2001 From: Tayler Hetherington Date: Thu, 13 Dec 2012 10:30:09 -0800 Subject: Renaming src/mcpat -> src/gpuwattch [git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 14798] --- src/mcpat/array.cc | 301 ----------------------------------------------------- 1 file changed, 301 deletions(-) delete mode 100644 src/mcpat/array.cc (limited to 'src/mcpat/array.cc') diff --git a/src/mcpat/array.cc b/src/mcpat/array.cc deleted file mode 100644 index a67e857..0000000 --- a/src/mcpat/array.cc +++ /dev/null @@ -1,301 +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.” - * - ***************************************************************************/ - -#define GLOBALVAR -#include "cacti/area.h" -#include "decoder.h" -#include "parameter.h" -#include "array.h" -#include -#include -#include -#include "globalvar.h" - -using namespace std; - -ArrayST::ArrayST(const InputParameter *configure_interface, - string _name, - enum Device_ty device_ty_, - bool opt_local_, - enum Core_type core_ty_, - bool _is_default) -:l_ip(*configure_interface), - name(_name), - device_ty(device_ty_), - opt_local(opt_local_), - core_ty(core_ty_), - is_default(_is_default) - { - - if (l_ip.cache_sz<64) l_ip.cache_sz=64; - l_ip.error_checking();//not only do the error checking but also fill some missing parameters - optimize_array(); - -} - - -void ArrayST::compute_base_power() - { - //l_ip.out_w =l_ip.line_sz*8; - local_result=cacti_interface(&l_ip); - - } - -void ArrayST::optimize_array() -{ - list candidate_solutions(0); - list::iterator candidate_iter, min_dynamic_energy_iter; - - uca_org_t * temp_res = 0; - local_result.valid=false; - - double throughput=l_ip.throughput, latency=l_ip.latency; - double area_efficiency_threshold = 20.0; - bool throughput_overflow=true, latency_overflow=true; - compute_base_power(); - - if ((local_result.cycle_time - throughput) <= 1e-10 ) - throughput_overflow=false; - if ((local_result.access_time - latency)<= 1e-10) - latency_overflow=false; - - if (opt_for_clk && opt_local) - { - if (throughput_overflow || latency_overflow) - { - l_ip.ed=0; - - l_ip.delay_wt = 100;//Fixed number, make sure timing can be satisfied. - l_ip.cycle_time_wt = 1000; - - l_ip.area_wt = 10;//Fixed number, This is used to exhaustive search for individual components. - l_ip.dynamic_power_wt = 10;//Fixed number, This is used to exhaustive search for individual components. - l_ip.leakage_power_wt = 10; - - l_ip.delay_dev = 1000000;//Fixed number, make sure timing can be satisfied. - l_ip.cycle_time_dev = 100; - - l_ip.area_dev = 1000000;//Fixed number, This is used to exhaustive search for individual components. - l_ip.dynamic_power_dev = 1000000;//Fixed number, This is used to exhaustive search for individual components. - l_ip.leakage_power_dev = 1000000; - - throughput_overflow=true; //Reset overflow flag before start optimization iterations - latency_overflow=true; - - temp_res = &local_result; //Clean up the result for optimized for ED^2P - temp_res->cleanup(); - } - - - while ((throughput_overflow || latency_overflow)&&l_ip.cycle_time_dev > 10)// && l_ip.delay_dev > 10 - { - compute_base_power(); - - l_ip.cycle_time_dev-=10;//This is the time_dev to be used for next iteration - - // from best area to worst area -->worst timing to best timing - if ((((local_result.cycle_time - throughput) <= 1e-10 ) && (local_result.access_time - latency)<= 1e-10)|| - (local_result.data_array2->area_efficiency < area_efficiency_threshold && l_ip.assoc == 0)) - { //if no satisfiable solution is found,the most aggressive one is left - candidate_solutions.push_back(local_result); - //output_data_csv(candidate_solutions.back()); - if (((local_result.cycle_time - throughput) <= 1e-10) && ((local_result.access_time - latency)<= 1e-10)) - //ensure stop opt not because of cam - { - throughput_overflow=false; - latency_overflow=false; - } - - } - else - { - //TODO: whether checking the partial satisfied results too, or just change the mark??? - if ((local_result.cycle_time - throughput) <= 1e-10) - throughput_overflow=false; - if ((local_result.access_time - latency)<= 1e-10) - latency_overflow=false; - - if (l_ip.cycle_time_dev > 10) - { //if not >10 local_result is the last result, it cannot be cleaned up - temp_res = &local_result; //Only solutions not saved in the list need to be cleaned up - temp_res->cleanup(); - } - } -// l_ip.cycle_time_dev-=10; -// l_ip.delay_dev-=10; - - } - - - if (l_ip.assoc > 0) - { - //For array structures except CAM and FA, Give warning but still provide a result with best timing found - if (throughput_overflow==true) - cout<< "Warning: " << name<<" array structure cannot satisfy throughput constraint." << endl; - if (latency_overflow==true) - cout<< "Warning: " << name<<" array structure cannot satisfy latency constraint." << endl; - } - -// else -// { -// /*According to "Content-Addressable Memory (CAM) Circuits and -// Architectures": A Tutorial and Survey -// by Kostas Pagiamtzis et al. -// CAM structures can be heavily pipelined and use look-ahead techniques, -// therefore timing can be relaxed. But McPAT does not model the advanced -// techniques. If continue optimizing, the area efficiency will be too low -// */ -// //For CAM and FA, stop opt if area efficiency is too low -// if (throughput_overflow==true) -// cout<< "Warning: " <<" McPAT stopped optimization on throughput for "<< name -// <<" array structure because its area efficiency is below "< (candidate_iter)->power.readOp.dynamic) - { - min_dynamic_energy = (candidate_iter)->power.readOp.dynamic; - min_dynamic_energy_iter = candidate_iter; - local_result = *(min_dynamic_energy_iter); - //TODO: since results are reordered results and l_ip may miss match. Therefore, the final output spread sheets may show the miss match. - - } - else - { - candidate_iter->cleanup() ; - } - - } - - - } - candidate_solutions.clear(); - } - - double long_channel_device_reduction = longer_channel_device_reduction(device_ty,core_ty); - - double macro_layout_overhead = g_tp.macro_layout_overhead; - double chip_PR_overhead = g_tp.chip_layout_overhead; - double total_overhead = macro_layout_overhead*chip_PR_overhead; - local_result.area *= total_overhead; - - //maintain constant power density - double pppm_t[4] = {total_overhead,1,1,total_overhead}; - - double sckRation = g_tp.sckt_co_eff; - local_result.power.readOp.dynamic *= sckRation; - local_result.power.writeOp.dynamic *= sckRation; - local_result.power.searchOp.dynamic *= sckRation; - local_result.power.readOp.leakage *= l_ip.nbanks; - local_result.power.readOp.longer_channel_leakage = - local_result.power.readOp.leakage*long_channel_device_reduction; - local_result.power = local_result.power* pppm_t; - - local_result.data_array2->power.readOp.dynamic *= sckRation; - local_result.data_array2->power.writeOp.dynamic *= sckRation; - local_result.data_array2->power.searchOp.dynamic *= sckRation; - local_result.data_array2->power.readOp.leakage *= l_ip.nbanks; - local_result.data_array2->power.readOp.longer_channel_leakage = - local_result.data_array2->power.readOp.leakage*long_channel_device_reduction; - local_result.data_array2->power = local_result.data_array2->power* pppm_t; - - - if (!(l_ip.pure_cam || l_ip.pure_ram || l_ip.fully_assoc) && l_ip.is_cache) - { - local_result.tag_array2->power.readOp.dynamic *= sckRation; - local_result.tag_array2->power.writeOp.dynamic *= sckRation; - local_result.tag_array2->power.searchOp.dynamic *= sckRation; - local_result.tag_array2->power.readOp.leakage *= l_ip.nbanks; - local_result.tag_array2->power.readOp.longer_channel_leakage = - local_result.tag_array2->power.readOp.leakage*long_channel_device_reduction; - local_result.tag_array2->power = local_result.tag_array2->power* pppm_t; - } - - -} - -void ArrayST::leakage_feedback(double temperature) -{ - // Update the temperature. l_ip is already set and error-checked in the creator function. - l_ip.temp = (unsigned int)round(temperature/10.0)*10; - - // This corresponds to cacti_interface() in the initialization process. Leakage power is updated here. - reconfigure(&l_ip,&local_result); - - // Scale the power values. This is part of ArrayST::optimize_array(). - double long_channel_device_reduction = longer_channel_device_reduction(device_ty,core_ty); - - double macro_layout_overhead = g_tp.macro_layout_overhead; - double chip_PR_overhead = g_tp.chip_layout_overhead; - double total_overhead = macro_layout_overhead*chip_PR_overhead; - - double pppm_t[4] = {total_overhead,1,1,total_overhead}; - - double sckRation = g_tp.sckt_co_eff; - local_result.power.readOp.dynamic *= sckRation; - local_result.power.writeOp.dynamic *= sckRation; - local_result.power.searchOp.dynamic *= sckRation; - local_result.power.readOp.leakage *= l_ip.nbanks; - local_result.power.readOp.longer_channel_leakage = local_result.power.readOp.leakage*long_channel_device_reduction; - local_result.power = local_result.power* pppm_t; - - local_result.data_array2->power.readOp.dynamic *= sckRation; - local_result.data_array2->power.writeOp.dynamic *= sckRation; - local_result.data_array2->power.searchOp.dynamic *= sckRation; - local_result.data_array2->power.readOp.leakage *= l_ip.nbanks; - local_result.data_array2->power.readOp.longer_channel_leakage = local_result.data_array2->power.readOp.leakage*long_channel_device_reduction; - local_result.data_array2->power = local_result.data_array2->power* pppm_t; - - if (!(l_ip.pure_cam || l_ip.pure_ram || l_ip.fully_assoc) && l_ip.is_cache) - { - local_result.tag_array2->power.readOp.dynamic *= sckRation; - local_result.tag_array2->power.writeOp.dynamic *= sckRation; - local_result.tag_array2->power.searchOp.dynamic *= sckRation; - local_result.tag_array2->power.readOp.leakage *= l_ip.nbanks; - local_result.tag_array2->power.readOp.longer_channel_leakage = local_result.tag_array2->power.readOp.leakage*long_channel_device_reduction; - local_result.tag_array2->power = local_result.tag_array2->power* pppm_t; - } -} - -ArrayST:: ~ArrayST() -{ - local_result.cleanup(); -} -- cgit v1.3