1/* 2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 13 unchanged lines hidden (view full) --- 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29/* |
30 * The class to implement bandwidth and latency throttle. An instance 31 * of consumer class that can be woke up. It is only used to control 32 * bandwidth at output port of a switch. And the throttle is added 33 * *after* the output port, means the message is put in the output 34 * port of the PerfectSwitch (a intermediateBuffers) first, then go 35 * through the Throttle. |
36 */ 37 |
38#ifndef __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__ 39#define __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__ |
40 |
41#include "mem/gems_common/Vector.hh" 42#include "mem/ruby/common/Consumer.hh" |
43#include "mem/ruby/common/Global.hh" 44#include "mem/ruby/network/Network.hh" |
45#include "mem/ruby/system/NodeID.hh" 46#include "mem/ruby/system/System.hh" |
47 48class MessageBuffer; 49 |
50class Throttle : public Consumer 51{ 52 public: 53 Throttle(int sID, NodeID node, int link_latency, 54 int link_bandwidth_multiplier); 55 Throttle(NodeID node, int link_latency, int link_bandwidth_multiplier); 56 ~Throttle() {} |
57 |
58 void addLinks(const Vector<MessageBuffer*>& in_vec, 59 const Vector<MessageBuffer*>& out_vec); 60 void wakeup(); |
61 |
62 void printStats(ostream& out) const; 63 void clearStats(); 64 void printConfig(ostream& out) const; 65 // The average utilization (a percent) since last clearStats() 66 double getUtilization() const; 67 int 68 getLinkBandwidth() const 69 { 70 return RubySystem::getNetwork()->getEndpointBandwidth() * 71 m_link_bandwidth_multiplier; 72 } 73 int getLatency() const { return m_link_latency; } |
74 |
75 const Vector<Vector<int> >& 76 getCounters() const 77 { 78 return m_message_counters; 79 } |
80 |
81 void clear(); |
82 |
83 void print(ostream& out) const; |
84 |
85 private: 86 void init(NodeID node, int link_latency, int link_bandwidth_multiplier); 87 void addVirtualNetwork(MessageBuffer* in_ptr, MessageBuffer* out_ptr); 88 void linkUtilized(double ratio) { m_links_utilized += ratio; } |
89 |
90 // Private copy constructor and assignment operator 91 Throttle(const Throttle& obj); 92 Throttle& operator=(const Throttle& obj); |
93 |
94 Vector<MessageBuffer*> m_in; 95 Vector<MessageBuffer*> m_out; 96 Vector<Vector<int> > m_message_counters; 97 int m_vnets; 98 Vector<int> m_units_remaining; 99 int m_sID; 100 NodeID m_node; 101 int m_link_bandwidth_multiplier; 102 int m_link_latency; 103 int m_wakeups_wo_switch; |
104 |
105 // For tracking utilization 106 Time m_ruby_start; 107 double m_links_utilized; |
108}; 109 |
110inline ostream& 111operator<<(ostream& out, const Throttle& obj) |
112{ |
113 obj.print(out); 114 out << flush; 115 return out; |
116} 117 |
118#endif // __MEM_RUBY_NETWORK_SIMPLE_THROTTLE_HH__ |