1. OMF/OML Labwiki
Pieter Becue
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2. OMF - OML Intro
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4. 12/01/2019
The problem is that there are different testbeds with each their management software,
Experiment description : FULL description of entire configuration + FLOW of experiment + measurements definition -> Easier to re-run experiments under different environment + show scientific relevance by including entire description of the experiment + easier to compare results!

6. Experiment description
OEDL language (ruby)
Uniform description of experiment
Which resources?
Which applications?
Entire flow of the experiment (timeline)
Easy to map to other testbeds
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7. 12/01/2019
Users can install their own EC
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8. OEDL Syntax
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9. Experiment description
Uniform description of experiment
Which resources?
Which applications?
Entire flow of the experiment (timeline)
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10. Uniform description of experiment
Which resources ?
defGroup(‘group1’, “node1.tutorial.ilabt.iminds.be")
defGroup(‘group2’, ”node2.tutorial.ilabt.iminds.be, node3.tutorial.ilabt.iminds.be ")
Multiple resources/group
Groups of groups
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11. Experiment description
Uniform description of experiment
Which resources?
Which applications?
Entire flow of the experiment (timeline)
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12. Uniform description of experiment
Which applications ?
defApplication('ping') do |app|
app.description = ‘Definition for the ping-oml2 app'
app.binary_path = '/usr/bin/ping-oml2'
app.defProperty('target', 'Address to ping', '', {:type => :string})
app.defProperty('count', 'Nr of times to ping', '-c', {:type => :integer})
end
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13. Uniform description of experiment
Which applications run on which resources ?
defGroup(‘n1’, “node1.tutorial.ilabt.iminds.be") do |g|
g.addApplication(“ping”) do |app|
app.setProperty(‘target’, ’google.com’)
app.setProperty(‘count’, 3)
end
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14. Experiment description
Uniform description of experiment
Which resources?
Which applications?
Entire flow of the experiment (timeline)
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15. Experiment flow What should happen in my experiment?
onEvent(:ALL_UP_AND_INSTALLED) do |event| allGroups.startApplications
after 5.seconds do
Experiment.done
end
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16. defApplication('ping') do |app| app
defApplication('ping') do |app| app.description = ‘Definition for the ping-oml2 app' app.binary_path = '/usr/bin/ping-oml2' app.defProperty('target', 'Address to ping', '', {:type => :string}) app.defProperty('count', 'Nr of times to ping', '-c', {:type => :integer}) end defGroup(‘n1’, “node1.tutorial.ilabt.iminds.be") do |g| g.addApplication(“ping”) do |app| app.setProperty(‘target’, ’google.com’) app.setProperty(‘count’, 3) onEvent(:ALL_UP_AND_INSTALLED) do |event| allGroups.startApplications after 5.seconds do Experiment.done
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17. OML Intro
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18. 12/01/2019

19. Native OML Experiment Definition Application Definition Application
/usr/bin/ping-oml2

20. Application definition
defApplication('ping') do |app| app.description = ‘Definition for the ping-oml2 app' app.binary_path = '/usr/bin/ping-oml2' app.defProperty('target', 'Address to ping', '', {:type => :string}) app.defProperty('count', 'Nr of times to ping', '-c', {:type => :integer}) a.defMeasurement('myping') do |m| m.defMetric('dest_addr',:string) m.defMetric('ttl',:int) m.defMetric('rtt',:float) m.defMetric('rtt_unit',:string) end
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21. Group definition
defGroup(‘n1’, “node1.tutorial.ilabt.iminds.be") do |g| g.addApplication(“ping”) do |app| app.setProperty(‘target’, ’google.com’) app.setProperty(‘count’, 3) app.measure(‘myping’, :samples => 1) end
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22. Using a wrapper Experiment Definition Application Definition
On the resource
Wrapper script
(parses output of ping for measurements)
Application
/usr/bin/ping

23. Application definition
defApplication('ping_app', 'pingmonitor') do |a| a.binary_path = "/root/pingWrap.rb" a.description = "ping application" app.defProperty('target', 'Address to ping', '', {:type => :string}) app.defProperty('count', 'Nr of times to ping', '-c', {:type => :integer}) a.defMeasurement('myping') do |m| m.defMetric('dest_addr',:string) m.defMetric('ttl',:int) m.defMetric('rtt',:float) m.defMetric('rtt_unit',:string) end
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24. require 'oml4r' class MPStat < OML4R::MPBase name :myping param :dest_addr, :type => :string param :ttl, :type => :int32 param :rtt, :type => :double param :rtt_unit, :type => :string end class Wrapper def initialize(args) def process_output(output) def ping() def start()
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25. Hands-on experiment
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26. iPerf https://mytestbed.net/projects/omlapp/wiki/Iperf Tweak
Wireless parameters (channel/tx-power/mode)
Packet size (app.setProperty(‘len‘,’200B’))
TCP/UDP (app.setProperty(‘udp', true))
app.setProperty(‘bandwidth’, ’30M’)
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27. Swap in 3 nodes using jFedEC
Edit the Rspec to run the install script :
sudo sh /share/upload/install/omf-ec54-install.sh
Server
Client
SSH to your EC node
Copy OEDL files in /share/upload/iperf
To your home dir
Change your resource names (see sheets)
= lower case hostname (should include slice name )
NOT zotacXX.wilab2.ilabt.iminds.be
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28. Run the experiment ! Change wifiType/Channel/essid
omf exec -N iperfTutorial.rb -- --essid groupX
Check the results
wilabuser/wilabuser
Database : Experiment ID (EC output)
default_slice_iminds TIMESTAMP
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29. Labwiki
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30. Labwiki Web-based GUI for OMF Developed at NICTA Experiments :
Design
Describe
Run
OMF job service (with experiment queue)
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Plan : documentation on the experiment. Describe the goals, the design, some background info. After experiment run : report & discuss results.
Prepare : create/edit wiki/oedl docs – drag/drop
Execute : config properties & run!
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32. w-iLab.t Zwijnaarde Labwiki Use your own nodes (see part 1) OML server
OMF6 + AMQP
SHARED git repo (do not change OEDL files)
Use your own nodes (see part 1)
SSH to them to find out their hostnames (or Manifest XML)
Hostname = OMF resource name
modprobe ath9k
OML server
wilabuser/wilabuser
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33. www.ibcn.intec.ugent.be – www.iminds.be
The w-iLab.t testbed
The w-iLab.t testbed
details:
details: –
Questions?
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