Throttle.hh revision 8259
16145Snate@binkert.org/* 26145Snate@binkert.org * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 36145Snate@binkert.org * All rights reserved. 46145Snate@binkert.org * 56145Snate@binkert.org * Redistribution and use in source and binary forms, with or without 66145Snate@binkert.org * modification, are permitted provided that the following conditions are 76145Snate@binkert.org * met: redistributions of source code must retain the above copyright 86145Snate@binkert.org * notice, this list of conditions and the following disclaimer; 96145Snate@binkert.org * redistributions in binary form must reproduce the above copyright 106145Snate@binkert.org * notice, this list of conditions and the following disclaimer in the 116145Snate@binkert.org * documentation and/or other materials provided with the distribution; 126145Snate@binkert.org * neither the name of the copyright holders nor the names of its 136145Snate@binkert.org * contributors may be used to endorse or promote products derived from 146145Snate@binkert.org * this software without specific prior written permission. 156145Snate@binkert.org * 166145Snate@binkert.org * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176145Snate@binkert.org * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186145Snate@binkert.org * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196145Snate@binkert.org * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206145Snate@binkert.org * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216145Snate@binkert.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226145Snate@binkert.org * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236145Snate@binkert.org * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246145Snate@binkert.org * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256145Snate@binkert.org * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266145Snate@binkert.org * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276145Snate@binkert.org */ 286145Snate@binkert.org 296145Snate@binkert.org/* 307054Snate@binkert.org * The class to implement bandwidth and latency throttle. An instance 317054Snate@binkert.org * of consumer class that can be woke up. It is only used to control 327054Snate@binkert.org * bandwidth at output port of a switch. And the throttle is added 337054Snate@binkert.org * *after* the output port, means the message is put in the output 347054Snate@binkert.org * port of the PerfectSwitch (a intermediateBuffers) first, then go 357054Snate@binkert.org * through the Throttle. 366145Snate@binkert.org */ 376145Snate@binkert.org 387054Snate@binkert.org#ifndef __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__ 397054Snate@binkert.org#define __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__ 406145Snate@binkert.org 417055Snate@binkert.org#include <iostream> 428229Snate@binkert.org#include <string> 437454Snate@binkert.org#include <vector> 447055Snate@binkert.org 456154Snate@binkert.org#include "mem/ruby/common/Consumer.hh" 467054Snate@binkert.org#include "mem/ruby/common/Global.hh" 477054Snate@binkert.org#include "mem/ruby/network/Network.hh" 486154Snate@binkert.org#include "mem/ruby/system/NodeID.hh" 496285Snate@binkert.org#include "mem/ruby/system/System.hh" 506145Snate@binkert.org 516145Snate@binkert.orgclass MessageBuffer; 526145Snate@binkert.org 537054Snate@binkert.orgclass Throttle : public Consumer 547054Snate@binkert.org{ 557054Snate@binkert.org public: 567054Snate@binkert.org Throttle(int sID, NodeID node, int link_latency, 578259SBrad.Beckmann@amd.com int link_bandwidth_multiplier, int endpoint_bandwidth); 588259SBrad.Beckmann@amd.com Throttle(NodeID node, int link_latency, int link_bandwidth_multiplier, 598259SBrad.Beckmann@amd.com int endpoint_bandwidth); 607054Snate@binkert.org ~Throttle() {} 616145Snate@binkert.org 628054Sksewell@umich.edu std::string name() 638054Sksewell@umich.edu { return csprintf("Throttle-%i", m_sID); } 648054Sksewell@umich.edu 657454Snate@binkert.org void addLinks(const std::vector<MessageBuffer*>& in_vec, 667454Snate@binkert.org const std::vector<MessageBuffer*>& out_vec); 677054Snate@binkert.org void wakeup(); 686145Snate@binkert.org 697055Snate@binkert.org void printStats(std::ostream& out) const; 707054Snate@binkert.org void clearStats(); 717055Snate@binkert.org void printConfig(std::ostream& out) const; 727054Snate@binkert.org // The average utilization (a percent) since last clearStats() 737054Snate@binkert.org double getUtilization() const; 747054Snate@binkert.org int 757054Snate@binkert.org getLinkBandwidth() const 767054Snate@binkert.org { 778259SBrad.Beckmann@amd.com return m_endpoint_bandwidth * m_link_bandwidth_multiplier; 787054Snate@binkert.org } 797054Snate@binkert.org int getLatency() const { return m_link_latency; } 806145Snate@binkert.org 817454Snate@binkert.org const std::vector<std::vector<int> >& 827054Snate@binkert.org getCounters() const 837054Snate@binkert.org { 847054Snate@binkert.org return m_message_counters; 857054Snate@binkert.org } 866145Snate@binkert.org 877054Snate@binkert.org void clear(); 886145Snate@binkert.org 897055Snate@binkert.org void print(std::ostream& out) const; 906145Snate@binkert.org 917054Snate@binkert.org private: 928259SBrad.Beckmann@amd.com void init(NodeID node, int link_latency, int link_bandwidth_multiplier, 938259SBrad.Beckmann@amd.com int endpoint_bandwidth); 947054Snate@binkert.org void addVirtualNetwork(MessageBuffer* in_ptr, MessageBuffer* out_ptr); 957054Snate@binkert.org void linkUtilized(double ratio) { m_links_utilized += ratio; } 966145Snate@binkert.org 977054Snate@binkert.org // Private copy constructor and assignment operator 987054Snate@binkert.org Throttle(const Throttle& obj); 997054Snate@binkert.org Throttle& operator=(const Throttle& obj); 1006145Snate@binkert.org 1017454Snate@binkert.org std::vector<MessageBuffer*> m_in; 1027454Snate@binkert.org std::vector<MessageBuffer*> m_out; 1037454Snate@binkert.org std::vector<std::vector<int> > m_message_counters; 1047054Snate@binkert.org int m_vnets; 1057454Snate@binkert.org std::vector<int> m_units_remaining; 1067054Snate@binkert.org int m_sID; 1077054Snate@binkert.org NodeID m_node; 1087054Snate@binkert.org int m_link_bandwidth_multiplier; 1097054Snate@binkert.org int m_link_latency; 1107054Snate@binkert.org int m_wakeups_wo_switch; 1118259SBrad.Beckmann@amd.com int m_endpoint_bandwidth; 1126145Snate@binkert.org 1137054Snate@binkert.org // For tracking utilization 1147054Snate@binkert.org Time m_ruby_start; 1157054Snate@binkert.org double m_links_utilized; 1166145Snate@binkert.org}; 1176145Snate@binkert.org 1187055Snate@binkert.orginline std::ostream& 1197055Snate@binkert.orgoperator<<(std::ostream& out, const Throttle& obj) 1206145Snate@binkert.org{ 1217054Snate@binkert.org obj.print(out); 1227055Snate@binkert.org out << std::flush; 1237054Snate@binkert.org return out; 1246145Snate@binkert.org} 1256145Snate@binkert.org 1267054Snate@binkert.org#endif // __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__ 127