1 /*! \page pls Packet level simulation
3 \htmlinclude .pls.doc.toc
5 It is possible to use a packet-level network simulator
6 instead of the default flow-based simulation. You may want to use such
7 an approach if you have doubts about the validity of the default model
8 or if you want to perform some validation experiments. At the moment,
9 we support the GTNetS simulator and since version 3.6.2, ns-3.
12 \section pls_simgrid_configuration_gtnets Using GTNetS
16 To enable GTNetS model inside SimGrid it is needed to patch the GTNetS simulator source code
17 and build/install it from scratch
20 - <b>Download and enter the recent downloaded GTNetS directory</b>
23 svn checkout svn://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/GTNetS/
28 - <b>Use the following commands to unzip and patch GTNetS package to work within SimGrid.</b>
31 unzip gtnets-current.zip
32 tar zxvf gtnets-current-patch.tgz
34 cat ../00*.patch | patch -p1
37 - <b>OPTIONALLY</b> you can use a patch for itanium 64bit processor family.
40 cat ../AMD64-FATAL-Removed-DUL_SIZE_DIFF-Added-fPIC-compillin.patch | patch -p1
43 - <b>Compile GTNetS</b>
45 Due to portability issues it is possible that GTNetS does not compile in your architecture. The patches furnished in SimGrid SVN repository are intended for use in Linux architecture only. Unfortunately, we do not have the time, the money, neither the manpower to guarantee GTNetS portability. We advice you to use one of GTNetS communication channel to get more help in compiling GTNetS.
49 ln -sf Makefile.linux Makefile
50 sed -i 's/-fPIC/-fPIC -fpermissive/g' Makefile
56 - <b>NOTE</b> A lot of warnings are expected but the application should compile
57 just fine. If the makefile insists in compiling some QT libraries
58 please try a make clean before asking for help.
61 - <b>To compile optimized version</b>
68 - <b>Installing GTNetS</b>
70 It is important to put the full path of your libgtsim-xxxx.so file when creating the symbolic link. Replace < userhome > by some path you have write access to.
73 ln -sf /<absolute_path>/gtnets_current/libgtsim-debug.so /<userhome>/usr/lib/libgtnets.so
74 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/<userhome>/usr/lib/libgtnets.so
75 mkdir /<userhome>/usr/include/gtnets
76 cp -fr SRC/*.h /<userhome>/usr/include/gtnets
80 - <b>Enable GTNetS support in SimGrid</b>
82 In order to enable gtnets with simgrid you have to give where is gtnets. (path to \<gtnets_path\>/lib and \<gtnets_path\>/include)
85 cmake . -Denable_gtnets=ON -Dgtnets_path=/<userhome>/usr
88 - <b>Once you have followed all the instructions for compiling and
89 installing successfully you can activate this feature at
90 runntime with the following options:</b>
99 - <b>Or try the GTNetS model dogbone example with</b>
102 gtnets/gtnets gtnets/onelink-p.xml gtnets/onelink-d.xml --cfg=network_model:GTNets
106 A long version of this <a href="http://gforge.inria.fr/docman/view.php/12/6283/GTNetS HowTo.html">HowTo</a> it is available
109 More about GTNetS simulator at <a href="http://www.ece.gatech.edu/research/labs/MANIACS/GTNetS/index.html">GTNetS Website</a>
113 The patches provided by us worked successfully with GTNetS found
114 <a href="http://www.ece.gatech.edu/research/labs/MANIACS/GTNetS/software/gtnets-current.zip">here</a>,
115 dated from 12th June 2008. Due to the discontinuing development of
116 GTNetS it is impossible to precise a version number. We STRONGLY recommend you
117 to download and install the GTNetS version found in SimGrid repository as explained above.
119 \section pls_simgrid_configuration_ns3 Using NS3
121 It is possible to use discrete-event network simulator <a href="http://www.nsnam.org/">(ns-3)</a> for Internet systems
122 instead of the default one.
124 A ns-3 platform is created according to the platform file you provide in SimGrid format. However from this configuration, we had to set up some extra parameters :
128 First, whenever possible, we let default ns3 values and we don't changed it ; in case you have doubts on values for those parameters (TCP parameters for example), blame ns-3...
132 Second, routing used inside ns-3 is a global and static one, relying on a shortest path algorithm. We did so by using ns3::Ipv4GlobalRoutingHelper::PopulateRoutingTables.
136 Third, we also choose to restrict the way your platform is built : end hosts cannot have more than one interface card (so, only one <link> in your SimGrid platform should link
137 an end host to the platform ; if not, your end host will be considered as a router.
142 To use ns3 model inside SimGrid you have to install at least the version 3.10 of ns3 simulator.
145 - <b>Download and enter the lateast release (here the 3.12.1)</b>
148 http://www.nsnam.org/release/ns-allinone-3.12.1.tar.bz2
149 tar -xf ns-allinone-3.12.1.tar.bz2
150 cd ns-allinone-3.12.1/ns-3.12.1/
153 - <b>Configure, make and install ns3</b>
156 ./waf configure --prefix="ns-3_install_directory"
161 After install ns-3 you should have directories into your "ns-3_install_directory":
166 You also need to add to the LD_LIBRARY_PATH : "ns-3_install_directory/lib".
168 - <b>Enable ns-3 support on SimGrid</b>
170 In order to enable ns-3 with simgrid you have to give where is ns-3 to the simgrid configuration command. (path to \<ns3_path\>/lib and \<ns3_path\>/include)
173 cmake . -Denable_ns3=ON -Dns3_path=<ns3_path>
176 With the output of the configuration you can see if ns-3 is detected by included the directory to flags.
179 Configuration of package `simgrid' on arch (=4):
181 SITE : Linux_2.6.38-11-generic_x86_64
182 Release : simgrid-3.6.1
184 Compiler: c++ : /usr/bin/c++
186 Compiler: c : /usr/bin/gcc
189 CFlags : -O3 -finline-functions -funroll-loops -fno-strict-aliasing -L/usr/lib/x86_64-linux-gnu -I/usr/include
190 -L/home/navarrop/Install/ns3-3.10/lib -I/home/navarrop/Install/ns3-3.10/include -g3 -D_NS3_3_10
191 CPPFlags: -I/home/navarrop/Install/ns3-3.10/include -L/home/navarrop/Install/ns3-3.10/lib
194 Compile NS-3 : 1 ---------------------> Be sure this option is "1" otherwise ns-3 is not activated
196 NS-3 path : /home/navarrop/Install/ns3-3.10
210 Simgrid dependencies: -lm -lpcre -lpthread -lns3 -lrt
211 Gras dependencies : -lm -lpthread -lrt
214 INSTALL_PREFIX: /usr/local
217 -- Build files have been written to: /home/navarrop/workspace/simgrid/build
220 Now you can compile SimGrid
225 Then you can see if ns-3 is well activated by testing
232 Start 182: msg-ns3-thread
233 1/3 Test #182: msg-ns3-thread ................... Passed 0.35 sec
234 Start 183: msg-ns3-ucontext
235 2/3 Test #183: msg-ns3-ucontext ................. Passed 0.22 sec
236 Start 184: msg-ns3-raw
237 3/3 Test #184: msg-ns3-raw ...................... Passed 0.23 sec
240 More about ns-3 simulator <a href="http://www.nsnam.org/">(Official website)</a>