b6b972da99
The eventual aim of this change is to pass RubySystem pointers through to objects generated from the SLICC protocol code. Because some of these objects need to dereference their RubySystem pointers, they need access to the System.hh header file. In src/mem/ruby/SConscript, the MakeInclude function creates single-line header files in the build directory that do nothing except include the corresponding header file from the source tree. However, SLICC also generates a list of header files from its symbol table, and writes it to mem/protocol/Types.hh in the build directory. This code assumes that the header file name is the same as the class name. The end result of this is the many of the generated slicc files try to include RubySystem.hh, when the file they really need is System.hh. The path of least resistence is just to rename System.hh to RubySystem.hh. --HG-- rename : src/mem/ruby/system/System.cc => src/mem/ruby/system/RubySystem.cc rename : src/mem/ruby/system/System.hh => src/mem/ruby/system/RubySystem.hh
125 lines
4.3 KiB
C++
125 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/network/Network.hh"
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#include "mem/ruby/system/RubySystem.hh"
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class MessageBuffer;
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class Switch;
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class Throttle : public Consumer
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{
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public:
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Throttle(int sID, RubySystem *rs, NodeID node, Cycles link_latency,
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int link_bandwidth_multiplier, int endpoint_bandwidth,
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Switch *em);
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~Throttle() {}
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std::string name()
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{ return csprintf("Throttle-%i", m_switch_id); }
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void addLinks(const std::vector<MessageBuffer*>& in_vec,
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const std::vector<MessageBuffer*>& out_vec);
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void wakeup();
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// The average utilization (a fraction) since last clearStats()
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const Stats::Scalar & getUtilization() const
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{ return m_link_utilization; }
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const Stats::Vector & getMsgCount(unsigned int type) const
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{ return m_msg_counts[type]; }
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int getLinkBandwidth() const
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{ return m_endpoint_bandwidth * m_link_bandwidth_multiplier; }
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Cycles getLatency() const { return m_link_latency; }
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void clearStats();
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void collateStats();
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void regStats(std::string name);
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void print(std::ostream& out) const;
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private:
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void init(NodeID node, Cycles link_latency, int link_bandwidth_multiplier,
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int endpoint_bandwidth);
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void operateVnet(int vnet, int &bw_remainin, bool &schedule_wakeup,
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MessageBuffer *in, MessageBuffer *out);
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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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unsigned int m_vnets;
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std::vector<int> m_units_remaining;
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const int m_switch_id;
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Switch *m_switch;
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NodeID m_node;
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int m_link_bandwidth_multiplier;
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Cycles m_link_latency;
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int m_wakeups_wo_switch;
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int m_endpoint_bandwidth;
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RubySystem *m_ruby_system;
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// Statistical variables
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Stats::Scalar m_link_utilization;
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Stats::Vector m_msg_counts[MessageSizeType_NUM];
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Stats::Formula m_msg_bytes[MessageSizeType_NUM];
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double m_link_utilization_proxy;
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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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