NetDest.cc revision 6284:a63d1dc4c820 
1
2/*
3 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * NetDest.C
32 *
33 * Description: See NetDest.hh
34 *
35 * $Id$
36 *
37 */
38
39#include "mem/ruby/common/NetDest.hh"
40#include "mem/ruby/config/RubyConfig.hh"
41#include "mem/protocol/Protocol.hh"
42
43NetDest::NetDest()
44{
45  setSize();
46}
47
48void NetDest::add(MachineID newElement)
49{
50  m_bits[vecIndex(newElement)].add(bitIndex(newElement.num));
51}
52
53void NetDest::addNetDest(const NetDest& netDest)
54{
55  assert(m_bits.size() == netDest.getSize());
56  for (int i = 0; i < m_bits.size(); i++) {
57    m_bits[i].addSet(netDest.m_bits[i]);
58  }
59}
60
61void NetDest::addRandom()
62{
63  int i = random()%m_bits.size();
64  m_bits[i].addRandom();
65}
66
67void NetDest::setNetDest(MachineType machine, const Set& set)
68{
69  // assure that there is only one set of destinations for this machine
70  assert(MachineType_base_level((MachineType)(machine+1)) - MachineType_base_level(machine) == 1);
71  m_bits[MachineType_base_level(machine)] = set;
72}
73
74void NetDest::remove(MachineID oldElement)
75{
76  m_bits[vecIndex(oldElement)].remove(bitIndex(oldElement.num));
77}
78
79void NetDest::removeNetDest(const NetDest& netDest)
80{
81  assert(m_bits.size() == netDest.getSize());
82  for (int i = 0; i < m_bits.size(); i++) {
83    m_bits[i].removeSet(netDest.m_bits[i]);
84
85  }
86}
87
88void NetDest::clear()
89{
90  for (int i = 0; i < m_bits.size(); i++) {
91    m_bits[i].clear();
92  }
93}
94
95void NetDest::broadcast()
96{
97  for (MachineType machine = MachineType_FIRST; machine < MachineType_NUM; ++machine) {
98    broadcast(machine);
99  }
100}
101
102void NetDest::broadcast(MachineType machineType) {
103
104  for (int i = 0; i < MachineType_base_count(machineType); i++) {
105    MachineID mach = {machineType, i};
106    add(mach);
107  }
108}
109
110//For Princeton Network
111Vector<NodeID> NetDest::getAllDest() {
112        Vector<NodeID> dest;
113        dest.clear();
114        for (int i=0; i<m_bits.size(); i++) {
115                for (int j=0; j<m_bits[i].getSize(); j++) {
116                        if (m_bits[i].isElement(j)) {
117                                dest.insertAtBottom((NodeID) (MachineType_base_number((MachineType) i) + j));
118                        }
119                }
120        }
121        return dest;
122}
123
124int NetDest::count() const
125{
126  int counter = 0;
127  for (int i=0; i<m_bits.size(); i++) {
128    counter += m_bits[i].count();
129  }
130  return counter;
131}
132
133NodeID NetDest::elementAt(MachineID index) {
134  return m_bits[vecIndex(index)].elementAt(bitIndex(index.num));
135}
136
137NodeID NetDest::smallestElement() const
138{
139  assert(count() > 0);
140  for (int i=0; i<m_bits.size(); i++) {
141    for (int j=0; j<m_bits[i].getSize(); j++) {
142      if (m_bits[i].isElement(j)) {
143        return j;
144      }
145    }
146  }
147  ERROR_MSG("No smallest element of an empty set.");
148}
149
150MachineID NetDest::smallestElement(MachineType machine) const
151{
152  for (int j = 0; j < m_bits[MachineType_base_level(machine)].getSize(); j++) {
153    if (m_bits[MachineType_base_level(machine)].isElement(j)) {
154      MachineID mach = {machine, j};
155      return mach;
156    }
157  }
158
159  ERROR_MSG("No smallest element of given MachineType.");
160}
161
162
163// Returns true iff all bits are set
164bool NetDest::isBroadcast() const
165{
166  for (int i=0; i<m_bits.size(); i++) {
167    if (!m_bits[i].isBroadcast()) {
168      return false;
169    }
170  }
171  return true;
172}
173
174// Returns true iff no bits are set
175bool NetDest::isEmpty() const
176{
177  for (int i=0; i<m_bits.size(); i++) {
178    if (!m_bits[i].isEmpty()) {
179      return false;
180    }
181  }
182  return true;
183}
184
185// returns the logical OR of "this" set and orNetDest
186NetDest NetDest::OR(const NetDest& orNetDest) const
187{
188  assert(m_bits.size() == orNetDest.getSize());
189  NetDest result;
190  for (int i=0; i<m_bits.size(); i++) {
191    result.m_bits[i] = m_bits[i].OR(orNetDest.m_bits[i]);
192  }
193  return result;
194}
195
196
197// returns the logical AND of "this" set and andNetDest
198NetDest NetDest::AND(const NetDest& andNetDest) const
199{
200  assert(m_bits.size() == andNetDest.getSize());
201  NetDest result;
202  for (int i=0; i<m_bits.size(); i++) {
203    result.m_bits[i] = m_bits[i].AND(andNetDest.m_bits[i]);
204  }
205  return result;
206}
207
208// Returns true if the intersection of the two sets is non-empty
209bool NetDest::intersectionIsNotEmpty(const NetDest& other_netDest) const
210{
211  assert(m_bits.size() == other_netDest.getSize());
212  for (int i=0; i<m_bits.size(); i++) {
213    if (m_bits[i].intersectionIsNotEmpty(other_netDest.m_bits[i])) {
214      return true;
215    }
216  }
217  return false;
218}
219
220bool NetDest::isSuperset(const NetDest& test) const
221{
222  assert(m_bits.size() == test.getSize());
223
224  for (int i=0; i<m_bits.size(); i++) {
225    if (!m_bits[i].isSuperset(test.m_bits[i])) {
226      return false;
227    }
228  }
229  return true;
230}
231
232bool NetDest::isElement(MachineID element) const
233{
234  return ((m_bits[vecIndex(element)])).isElement(bitIndex(element.num));
235}
236
237void NetDest::setSize()
238{
239  m_bits.setSize(MachineType_base_level(MachineType_NUM));
240  assert(m_bits.size() == MachineType_NUM);
241
242  for (int i = 0; i < m_bits.size(); i++) {
243    m_bits[i].setSize(MachineType_base_count((MachineType)i));
244  }
245}
246
247void NetDest::print(ostream& out) const
248{
249  out << "[NetDest (" << m_bits.size() << ") ";
250
251  for (int i=0; i<m_bits.size(); i++) {
252    for (int j=0; j<m_bits[i].getSize(); j++) {
253      out << (bool) m_bits[i].isElement(j) << " ";
254    }
255    out << " - ";
256  }
257  out << "]";
258}
259
260