2 * Copyright (c) 2008 Princeton University
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;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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.
28 * Authors: Niket Agarwal
31 #include "mem/ruby/network/garnet/BaseGarnetNetwork.hh"
32 #include "mem/ruby/network/MessageBuffer.hh"
36 BaseGarnetNetwork::BaseGarnetNetwork(const Params
*p
)
39 m_ni_flit_size
= p
->ni_flit_size
;
40 m_vcs_per_vnet
= p
->vcs_per_vnet
;
41 m_enable_fault_model
= p
->enable_fault_model
;
42 if (m_enable_fault_model
)
43 fault_model
= p
->fault_model
;
45 // Currently Garnet only supports uniform bandwidth for all
46 // links and network interfaces.
47 for (std::vector
<BasicExtLink
*>::const_iterator i
= p
->ext_links
.begin();
48 i
!= p
->ext_links
.end(); ++i
) {
49 BasicExtLink
* ext_link
= (*i
);
50 if (ext_link
->params()->bandwidth_factor
!= m_ni_flit_size
) {
51 fatal("Garnet only supports uniform bw across all links and NIs\n");
54 for (std::vector
<BasicIntLink
*>::const_iterator i
= p
->int_links
.begin();
55 i
!= p
->int_links
.end(); ++i
) {
56 BasicIntLink
* int_link
= (*i
);
57 if (int_link
->params()->bandwidth_factor
!= m_ni_flit_size
) {
58 fatal("Garnet only supports uniform bw across all links and NIs\n");
64 BaseGarnetNetwork::init()
70 BaseGarnetNetwork::getToNetQueue(NodeID id
, bool ordered
, int network_num
,
73 checkNetworkAllocation(id
, ordered
, network_num
, vnet_type
);
74 return m_toNetQueues
[id
][network_num
];
78 BaseGarnetNetwork::getFromNetQueue(NodeID id
, bool ordered
, int network_num
,
81 checkNetworkAllocation(id
, ordered
, network_num
, vnet_type
);
82 return m_fromNetQueues
[id
][network_num
];
86 BaseGarnetNetwork::regStats()
89 .init(m_virtual_networks
)
90 .name(name() + ".flits_received")
91 .flags(Stats::pdf
| Stats::total
| Stats::nozero
| Stats::oneline
)
95 .init(m_virtual_networks
)
96 .name(name() + ".flits_injected")
97 .flags(Stats::pdf
| Stats::total
| Stats::nozero
| Stats::oneline
)
101 .init(m_virtual_networks
)
102 .name(name() + ".network_latency")
103 .flags(Stats::oneline
)
107 .init(m_virtual_networks
)
108 .name(name() + ".queueing_latency")
109 .flags(Stats::oneline
)
112 for (int i
= 0; i
< m_virtual_networks
; i
++) {
113 m_flits_received
.subname(i
, csprintf("vnet-%i", i
));
114 m_flits_injected
.subname(i
, csprintf("vnet-%i", i
));
115 m_network_latency
.subname(i
, csprintf("vnet-%i", i
));
116 m_queueing_latency
.subname(i
, csprintf("vnet-%i", i
));
120 .name(name() + ".average_vnet_latency")
121 .flags(Stats::oneline
);
122 m_avg_vnet_latency
= m_network_latency
/ m_flits_received
;
125 .name(name() + ".average_vqueue_latency")
126 .flags(Stats::oneline
);
127 m_avg_vqueue_latency
= m_queueing_latency
/ m_flits_received
;
129 m_avg_network_latency
.name(name() + ".average_network_latency");
130 m_avg_network_latency
= sum(m_network_latency
) / sum(m_flits_received
);
132 m_avg_queueing_latency
.name(name() + ".average_queueing_latency");
133 m_avg_queueing_latency
= sum(m_queueing_latency
) / sum(m_flits_received
);
135 m_avg_latency
.name(name() + ".average_latency");
136 m_avg_latency
= m_avg_network_latency
+ m_avg_queueing_latency
;