mathexpr_powermodel.cc revision 11972
111527Sdavid.guillen@arm.com/* 211967Sandreas.sandberg@arm.com * Copyright (c) 2016-2017 ARM Limited 311527Sdavid.guillen@arm.com * All rights reserved 411527Sdavid.guillen@arm.com * 511527Sdavid.guillen@arm.com * The license below extends only to copyright in the software and shall 611527Sdavid.guillen@arm.com * not be construed as granting a license to any other intellectual 711527Sdavid.guillen@arm.com * property including but not limited to intellectual property relating 811527Sdavid.guillen@arm.com * to a hardware implementation of the functionality of the software 911527Sdavid.guillen@arm.com * licensed hereunder. You may use the software subject to the license 1011527Sdavid.guillen@arm.com * terms below provided that you ensure that this notice is replicated 1111527Sdavid.guillen@arm.com * unmodified and in its entirety in all distributions of the software, 1211527Sdavid.guillen@arm.com * modified or unmodified, in source code or in binary form. 1311527Sdavid.guillen@arm.com * 1411527Sdavid.guillen@arm.com * Redistribution and use in source and binary forms, with or without 1511527Sdavid.guillen@arm.com * modification, are permitted provided that the following conditions are 1611527Sdavid.guillen@arm.com * met: redistributions of source code must retain the above copyright 1711527Sdavid.guillen@arm.com * notice, this list of conditions and the following disclaimer; 1811527Sdavid.guillen@arm.com * redistributions in binary form must reproduce the above copyright 1911527Sdavid.guillen@arm.com * notice, this list of conditions and the following disclaimer in the 2011527Sdavid.guillen@arm.com * documentation and/or other materials provided with the distribution; 2111527Sdavid.guillen@arm.com * neither the name of the copyright holders nor the names of its 2211527Sdavid.guillen@arm.com * contributors may be used to endorse or promote products derived from 2311527Sdavid.guillen@arm.com * this software without specific prior written permission. 2411527Sdavid.guillen@arm.com * 2511527Sdavid.guillen@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2611527Sdavid.guillen@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2711527Sdavid.guillen@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2811527Sdavid.guillen@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2911527Sdavid.guillen@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3011527Sdavid.guillen@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3111527Sdavid.guillen@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3211527Sdavid.guillen@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3311527Sdavid.guillen@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3411527Sdavid.guillen@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3511527Sdavid.guillen@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3611527Sdavid.guillen@arm.com * 3711527Sdavid.guillen@arm.com * Authors: David Guillen Fandos 3811527Sdavid.guillen@arm.com */ 3911527Sdavid.guillen@arm.com 4011527Sdavid.guillen@arm.com#include "sim/power/mathexpr_powermodel.hh" 4111527Sdavid.guillen@arm.com 4211972Sstephan.diestelhorst@arm.com#include <string> 4311972Sstephan.diestelhorst@arm.com 4411527Sdavid.guillen@arm.com#include "base/statistics.hh" 4511527Sdavid.guillen@arm.com#include "params/MathExprPowerModel.hh" 4611527Sdavid.guillen@arm.com#include "sim/mathexpr.hh" 4711527Sdavid.guillen@arm.com#include "sim/power/thermal_model.hh" 4811527Sdavid.guillen@arm.com#include "sim/sim_object.hh" 4911527Sdavid.guillen@arm.com 5011527Sdavid.guillen@arm.comMathExprPowerModel::MathExprPowerModel(const Params *p) 5111967Sandreas.sandberg@arm.com : PowerModelState(p), dyn_expr(p->dyn), st_expr(p->st), failed(false) 5211527Sdavid.guillen@arm.com{ 5311527Sdavid.guillen@arm.com // Calculate the name of the object we belong to 5411527Sdavid.guillen@arm.com std::vector<std::string> path; 5511527Sdavid.guillen@arm.com tokenize(path, name(), '.', true); 5611527Sdavid.guillen@arm.com // It's something like xyz.power_model.pm2 5711527Sdavid.guillen@arm.com assert(path.size() > 2); 5811527Sdavid.guillen@arm.com for (unsigned i = 0; i < path.size() - 2; i++) 5911527Sdavid.guillen@arm.com basename += path[i] + "."; 6011527Sdavid.guillen@arm.com} 6111527Sdavid.guillen@arm.com 6211527Sdavid.guillen@arm.comvoid 6311527Sdavid.guillen@arm.comMathExprPowerModel::startup() 6411527Sdavid.guillen@arm.com{ 6511527Sdavid.guillen@arm.com // Create a map with stats and pointers for quick access 6611527Sdavid.guillen@arm.com // Has to be done here, since we need access to the statsList 6711972Sstephan.diestelhorst@arm.com for (auto & i: Stats::statsList()) { 6811972Sstephan.diestelhorst@arm.com if (i->name.find(basename) == 0) { 6911972Sstephan.diestelhorst@arm.com // Add stats for this sim object and its child objects 7011527Sdavid.guillen@arm.com stats_map[i->name.substr(basename.size())] = i; 7111972Sstephan.diestelhorst@arm.com } else if (i->name.find(".") == std::string::npos) { 7211972Sstephan.diestelhorst@arm.com // Add global stats (sim_seconds, for example) 7311972Sstephan.diestelhorst@arm.com stats_map[i->name] = i; 7411972Sstephan.diestelhorst@arm.com } 7511972Sstephan.diestelhorst@arm.com } 7611967Sandreas.sandberg@arm.com 7711967Sandreas.sandberg@arm.com tryEval(st_expr); 7811967Sandreas.sandberg@arm.com const bool st_failed = failed; 7911967Sandreas.sandberg@arm.com 8011967Sandreas.sandberg@arm.com tryEval(dyn_expr); 8111967Sandreas.sandberg@arm.com const bool dyn_failed = failed; 8211967Sandreas.sandberg@arm.com 8311967Sandreas.sandberg@arm.com if (st_failed || dyn_failed) { 8411967Sandreas.sandberg@arm.com const auto *p = dynamic_cast<const Params *>(params()); 8511967Sandreas.sandberg@arm.com assert(p); 8611967Sandreas.sandberg@arm.com 8711967Sandreas.sandberg@arm.com fatal("Failed to evaluate power expressions:\n%s%s%s\n", 8811967Sandreas.sandberg@arm.com st_failed ? p->st : "", 8911967Sandreas.sandberg@arm.com st_failed && dyn_failed ? "\n" : "", 9011967Sandreas.sandberg@arm.com dyn_failed ? p->dyn : ""); 9111967Sandreas.sandberg@arm.com } 9211527Sdavid.guillen@arm.com} 9311527Sdavid.guillen@arm.com 9411527Sdavid.guillen@arm.comdouble 9511967Sandreas.sandberg@arm.comMathExprPowerModel::eval(const MathExpr &expr) const 9611967Sandreas.sandberg@arm.com{ 9711967Sandreas.sandberg@arm.com const double value = tryEval(expr); 9811967Sandreas.sandberg@arm.com 9911967Sandreas.sandberg@arm.com // This shouldn't happen unless something went wrong the equations 10011967Sandreas.sandberg@arm.com // were verified in startup(). 10111967Sandreas.sandberg@arm.com panic_if(failed, "Failed to evaluate power expression '%s'\n", 10211967Sandreas.sandberg@arm.com expr.toStr()); 10311967Sandreas.sandberg@arm.com 10411967Sandreas.sandberg@arm.com return value; 10511967Sandreas.sandberg@arm.com} 10611967Sandreas.sandberg@arm.com 10711967Sandreas.sandberg@arm.comdouble 10811967Sandreas.sandberg@arm.comMathExprPowerModel::tryEval(const MathExpr &expr) const 10911967Sandreas.sandberg@arm.com{ 11011967Sandreas.sandberg@arm.com failed = false; 11111967Sandreas.sandberg@arm.com const double value = expr.eval( 11211967Sandreas.sandberg@arm.com std::bind(&MathExprPowerModel::getStatValue, 11311967Sandreas.sandberg@arm.com this, std::placeholders::_1) 11411967Sandreas.sandberg@arm.com ); 11511967Sandreas.sandberg@arm.com 11611967Sandreas.sandberg@arm.com return value; 11711967Sandreas.sandberg@arm.com} 11811967Sandreas.sandberg@arm.com 11911967Sandreas.sandberg@arm.com 12011967Sandreas.sandberg@arm.comdouble 12111527Sdavid.guillen@arm.comMathExprPowerModel::getStatValue(const std::string &name) const 12211527Sdavid.guillen@arm.com{ 12311527Sdavid.guillen@arm.com using namespace Stats; 12411527Sdavid.guillen@arm.com 12511527Sdavid.guillen@arm.com // Automatic variables: 12611968Sandreas.sandberg@arm.com if (name == "temp") { 12711527Sdavid.guillen@arm.com return _temp; 12811968Sandreas.sandberg@arm.com } else if (name == "voltage") { 12911968Sandreas.sandberg@arm.com return clocked_object->voltage(); 13011968Sandreas.sandberg@arm.com } 13111527Sdavid.guillen@arm.com 13211527Sdavid.guillen@arm.com // Try to cast the stat, only these are supported right now 13311967Sandreas.sandberg@arm.com const auto it = stats_map.find(name); 13411967Sandreas.sandberg@arm.com if (it == stats_map.cend()) { 13511967Sandreas.sandberg@arm.com warn("Failed to find stat '%s'\n", name); 13611967Sandreas.sandberg@arm.com failed = true; 13711967Sandreas.sandberg@arm.com return 0; 13811967Sandreas.sandberg@arm.com } 13911527Sdavid.guillen@arm.com 14011967Sandreas.sandberg@arm.com const Info *info = it->second; 14111967Sandreas.sandberg@arm.com 14211967Sandreas.sandberg@arm.com auto si = dynamic_cast<const ScalarInfo *>(info); 14311527Sdavid.guillen@arm.com if (si) 14411527Sdavid.guillen@arm.com return si->value(); 14511967Sandreas.sandberg@arm.com auto fi = dynamic_cast<const FormulaInfo *>(info); 14611527Sdavid.guillen@arm.com if (fi) 14711527Sdavid.guillen@arm.com return fi->total(); 14811527Sdavid.guillen@arm.com 14911527Sdavid.guillen@arm.com panic("Unknown stat type!\n"); 15011527Sdavid.guillen@arm.com} 15111527Sdavid.guillen@arm.com 15211527Sdavid.guillen@arm.comvoid 15311527Sdavid.guillen@arm.comMathExprPowerModel::regStats() 15411527Sdavid.guillen@arm.com{ 15511527Sdavid.guillen@arm.com PowerModelState::regStats(); 15611527Sdavid.guillen@arm.com} 15711527Sdavid.guillen@arm.com 15811527Sdavid.guillen@arm.comMathExprPowerModel* 15911527Sdavid.guillen@arm.comMathExprPowerModelParams::create() 16011527Sdavid.guillen@arm.com{ 16111527Sdavid.guillen@arm.com return new MathExprPowerModel(this); 16211527Sdavid.guillen@arm.com} 163