cf232de461
Many Ruby structures inherit from the Consumer, which is used for scheduling events. The Consumer used to relay on an Event Manager for scheduling events and on g_system_ptr for time. With this patch, the Consumer will now use a ClockedObject to schedule events and to query for current time. This resulted in several structures being converted from SimObjects to ClockedObjects. Also, the MessageBuffer class now requires a pointer to a ClockedObject so as to query for time.
127 lines
4.3 KiB
C++
127 lines
4.3 KiB
C++
/*
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* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* The class to implement bandwidth and latency throttle. An instance
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* of consumer class that can be woke up. It is only used to control
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* bandwidth at output port of a switch. And the throttle is added
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* *after* the output port, means the message is put in the output
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* port of the PerfectSwitch (a intermediateBuffers) first, then go
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* through the Throttle.
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*/
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#ifndef __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__
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#define __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__
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#include <iostream>
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#include <string>
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#include <vector>
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#include "mem/ruby/common/Consumer.hh"
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#include "mem/ruby/common/Global.hh"
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#include "mem/ruby/network/Network.hh"
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#include "mem/ruby/system/System.hh"
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class MessageBuffer;
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class Throttle : public Consumer
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{
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public:
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Throttle(int sID, NodeID node, int link_latency,
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int link_bandwidth_multiplier, int endpoint_bandwidth,
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ClockedObject *em);
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Throttle(NodeID node, int link_latency, int link_bandwidth_multiplier,
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int endpoint_bandwidth, ClockedObject *em);
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~Throttle() {}
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std::string name()
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{ return csprintf("Throttle-%i", m_sID); }
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void addLinks(const std::vector<MessageBuffer*>& in_vec,
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const std::vector<MessageBuffer*>& out_vec, ClockedObject *em);
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void wakeup();
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void printStats(std::ostream& out) const;
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void clearStats();
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// The average utilization (a percent) since last clearStats()
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double getUtilization() const;
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int
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getLinkBandwidth() const
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{
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return m_endpoint_bandwidth * m_link_bandwidth_multiplier;
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}
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int getLatency() const { return m_link_latency; }
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const std::vector<std::vector<int> >&
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getCounters() const
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{
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return m_message_counters;
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}
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void clear();
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void print(std::ostream& out) const;
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private:
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void init(NodeID node, int link_latency, int link_bandwidth_multiplier,
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int endpoint_bandwidth);
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void addVirtualNetwork(MessageBuffer* in_ptr, MessageBuffer* out_ptr,
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ClockedObject *em);
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void linkUtilized(double ratio) { m_links_utilized += ratio; }
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// Private copy constructor and assignment operator
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Throttle(const Throttle& obj);
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Throttle& operator=(const Throttle& obj);
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std::vector<MessageBuffer*> m_in;
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std::vector<MessageBuffer*> m_out;
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std::vector<std::vector<int> > m_message_counters;
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int m_vnets;
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std::vector<int> m_units_remaining;
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int m_sID;
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NodeID m_node;
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int m_link_bandwidth_multiplier;
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int m_link_latency;
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int m_wakeups_wo_switch;
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int m_endpoint_bandwidth;
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// For tracking utilization
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Time m_ruby_start;
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double m_links_utilized;
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};
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inline std::ostream&
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operator<<(std::ostream& out, const Throttle& obj)
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{
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obj.print(out);
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out << std::flush;
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return out;
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}
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#endif // __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__
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