Changes between Version 19 and Version 20 of GEC18Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute


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Timestamp:
10/25/13 11:33:01 (11 years ago)
Author:
divyashri.bhat@gmail.com
Comment:

--

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  • GEC18Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute

    v19 v20  
    3333
    3434=== 3.2 Verification of Topology ===
    35 After establishing the slice on which the experiment will be executed, the experimenter will be most likely be interested in verifying if the slice has been initiated correctly. In this tutorial, we use an [[http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/step1-ping_all.rb OMF experiment script]] that executes pings between neighbouring nodes.
    36 
    37 '''Note''': All the scripts shown here have been prepopulated in your iRODs directory under a folder called /geniRenci/home/<username>/experimentScripts/repo/oidl. You could edit these scripts in !LabWiki or [http://groups.geni.net/geni/wiki/GEC18Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/addtoiDrop add your own using iDrop].
     35After establishing the slice on which the experiment will be executed, the experimenter will be most likely be interested in verifying if the slice has been initiated correctly. In this tutorial, we use an [[http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/step1-ping_all.rb OMF experiment script]] that executes pings between neighbouring nodes. [[BR]]
     36
     37Before executing the experiments, we provide here a brief overview on the 4 experiments and the associated OEDL/OMF scripts that we use to execute these experiments.
     38
     39'''Note''': All the scripts shown here have been prepopulated in your iRODs directory under a folder called /geniRenci/home/<username>/experimentScripts/oidl. You could edit these scripts in !LabWiki or [http://groups.geni.net/geni/wiki/GEC18Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/addtoiDrop add your own using iDrop].
    3840
    3941
    … …  
    4345[[Image(http://groups.geni.net/geni/attachment/wiki/GEC17Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/ping.png?format=raw, 20%)]]
    4446
    45 '''In !LabWiki''' [[BR]]
    46 step1-ping_all.rb
    47 
    48 [[Image(http://groups.geni.net/geni/attachment/wiki/GEC17Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/Labwiki_4.png?format=raw, 80%)]]
     47==== OEDL Script ====
     48'''step1-ping_all.rb'''
    4949
    5050{{{
    … …  
    204204
    205205
    206 '''In !LabWiki''' [[BR]]
    207 step2-routing.rb
     206==== OEDL Script ====
     207'''step2-routing.rb''
    208208
    209209{{{
    … …  
    263263[[Image(http://groups.geni.net/geni/attachment/wiki/GEC17Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/GIMIPing_e2e.png?format=raw, 20%)]]
    264264
    265 '''In !LabWiki''' [[BR]]
    266 step3-ping_e2e.rb
     265==== OEDL Script ====
     266'''step3-ping_e2e.rb''
    267267
    268268{{{
    … …  
    394394
    395395
    396 == 4. Running Actual Experiment ==
     396=== 3.5. Running Actual Experiment ===
    397397
    398398We will use an [[http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/step4-otg_nmetrics.rb OMF experiment script]] to execute oml enabled traffic generator and receiver (otg and otr) to simulate network traffic, and use oml enabled nmetrics to measure the system usage (e.g., CUP, memory) and network interface usage on each of the participated ExoGENI nodes.
    … …  
    403403The one we use for this tutorial is shown below.
    404404
    405 '''In !LabWiki''' [[BR]]
    406 step4-otg_nmetrics.rb
     405==== OEDL Script ====
     406'''step4-otg_nmetrics.rb''
     407
    407408
    408409{{{
    … …  
    502503[[BR]]
    503504
    504 == 5. !LabWiki ==
     505== 4. !LabWiki ==
    505506
    506507!LabWiki is a tool which provides a user-friendly interface to visualize your experiment. To know more about !LabWiki please visit [https://github.com/mytestbed/labwiki LabWiki] [[BR]]
    507 !LabWiki can be used to Plan, Prepare and Run your Experiment.[[BR]]
    508 
    509 === 5.1 Login using OpenID ===
     508!LabWiki can be used to Plan, Prepare and Run your Experiment. [[BR]]
     509
     510
     511After you have successfully been signed in you will be able to see a screen like the one below. [[BR]]
     512
     513
     514[[Image(http://groups.geni.net/geni/attachment/wiki/GEC17Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/Labwiki_1.png?format=raw, 80%)]]
     515
     516'''Figure(1)'''
     517
     518=== 4.1 Login using OpenID ===
    510519
    511520If you are logged in to the GENI Portal you will be logged in to !LabWiki automatically when you click Login. [[BR]]
    … …  
    518527
    519528
    520 '''Figure (1)'''
    521 
    522 '''Send your information. This allows !LabWiki to use the GENI Portal ID to log you in to !LabWiki.'''[[BR]]
     529'''Figure (2)'''
     530
     531Send your information. This allows !LabWiki to use the GENI Portal ID to log you in to !LabWiki. [[BR]]
     532
    523533[[Image(http://groups.geni.net/geni/attachment/wiki/GEC17Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/Labwiki_sendinfo.png?format=raw, 80%)]]
    524534
    525535
    526 '''Figure (2)'''
    527 === 5.2 Plan ===
    528 
    529 
    530 After you have successfully been signed in you will be able to see a screen like the one below. [[BR]]
    531 
    532 
    533 [[Image(http://groups.geni.net/geni/attachment/wiki/GEC17Agenda/GettingStartedWithGENI_III_GIMI/Procedure/Execute/Labwiki_1.png?format=raw, 80%)]]
    534 
    535536'''Figure (3)'''
    536537
    537 
    538 The left column could contain the steps to run the experiment or general information about the experiment.[[BR]] The scripts are written using a simple [http://daringfireball.net/projects/markdown/syntax markdown scripts].
     538=== 4.2 Plan ===
     539
     540
     541The left column could contain the steps to run the experiment or general information about the experiment. [[BR]] These scripts are written using a simple [http://daringfireball.net/projects/markdown/syntax markdown language].
     542
     543The one we use here is '''gec15-tutorial.md''' . These scripts can uploaded to your iRODs directory at /geniRenci/home/<username>/experimentScripts/wiki.
     544
     545{{{
     546title: "GEC15 GIMI Tutorial"
     547
     548In this tutorial we describe a series of experiment
     549that will allow a user to:
     550* Verify that a slice has been set up correct
     551* Establish certain routes within the slice
     552* Verify that routes have been set up correct
     553* Execute a throughput measurement
     554
     555## Verification of Topology
     556
     557After establishing the slice on which the experiment will be executed, the experimenter will be most likely be interested in verifying if the slice has been initiated correctly. In this tutorial, we use an [OMF experiment script] (http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/step1-ping_all.rb) that executes pings between neighboring nodes.
     558The following figure shows that a total of 12 (between each pair of nodes and in each direction) ping are performed.
     559
     560![12 Pings](http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/images/ping.png)
     561__Figure 1__. 12 pings.
     562
     563The corresponding experiment script can be found under
     564"gec16/step1-ping_all.rb" To run the experiment perform the following:
     565
     566* Simply type "step1-ping_all.rb" in the search field all the way
     567on the top of the "Prepare widget" and select the file
     568and the scrip will show up in the prepare widget.
     569* Drag the icon on top of the "Prepare" widget to the
     570"Execute" widget.
     571* Check if all the specified parameters are correct.
     572* Start the experiment.
     573
     574## Setup Routing in Experiment Topology
     575
     576In more complex topologies routing has to be set up. In our case, this is achieved with the aid of an [OMF experiment script](http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/step2-routing.rb).
     577
     578The corresponding experiment script can be found under
     579"gec16/step2-routing.rb" To run the experiment perform the following:
     580
     581* Simply type "step2-routing.rb" in the search field all the way
     582on the top of the "Prepare widget" and select the file
     583and the scrip will show up in the prepare widget.
     584* Drag the icon on top of the "Prepare" widget to the
     585"Execute" widget.
     586* Check if all the specified parameters are correct.
     587* Start the experiment.
     588
     589The step2-routing.rb script can be easily adapted if the experimenter wishes to set up the routing between the nodes differently.
     590
     591## Verification of Routing
     592
     593After establishing the routing, we use an [OMF experiment script](http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/step3-ping_e2e.rb) that executes pings between each pair of nodes that contains one hop, to verify the correctness of routing setup.
     594
     595![](_)
     596__Figure 2__. Route verification.
     597
     598The corresponding experiment script can be found under
     599"gec16/step3-ping_e2e.rb" To run the experiment perform the following:
     600
     601* Simply type "step3-ping_e2e.rb" in the search field all the way
     602on the top of the "Prepare widget" and select the file
     603and the scrip will show up in the prepare widget.
     604* Drag the icon on top of the "Prepare" widget to the
     605"Execute" widget.
     606* Check if all the specified parameters are correct.
     607* Start the experiment.
     608
     609## Running Actual Experiment
     610
     611We will use an [OMF experiment script](http://emmy9.casa.umass.edu/GEC15-GIMI-Tutorial/step4-otg_nmetrics.rb) to execute oml enabled traffic generator and receiver (otg and otr) to simulate network traffic, and use oml enabled nmetrics to measure the system usage (e.g., CPU, memory) and network interface usage on each of the participated ExoGENI nodes.
     612
     613![](_)
     614__Figure 3__. Actual experiment.
     615
     616The corresponding experiment script can be found under
     617"gec16/step4-otg_nmetrics.rb" To run the experiment perform the following:
     618
     619* Simply type "step4-otg_nmetrics.rb" in the search field all the way
     620on the top of the "Prepare widget" and select the file
     621and the scrip will show up in the prepare widget.
     622* Drag the icon on top of the "Prepare" widget to the
     623"Execute" widget.
     624* Check if all the specified parameters are correct.
     625* Start the experiment.
     626
     627}}}
    539628
    540629
    … …  
    543632'''Figure (4)'''
    544633
    545 === 5.3 Prepare ===
     634=== 4.3 Prepare ===
     635
    546636In the Prepare column, you can select the experiment that you want to execute. In this column you will also be able to edit your experiment script.[[BR]]
    547637
    … …  
    551641
    552642After editing, click on the icon at the top-left of the column to save your script. [[BR]]
    553 Next, click and drag the icon at the top left corner over to the right column Execute.[[BR]]
    554 
    555 === 5.4 Execute ===
     643Next, click and drag the icon at the top left corner over to the right column Execute. [[BR]]
     644
     645=== 4.4 Execute ===
    556646
    557647Here, you can start your experiment and visualise it. In the name tab, type in the name you wish to give the experiment. Your name should only consist of alphanumeric characters. Only '_' is allowed as a special character.[[BR]]
    558648
    559 ==== 5.4.1 Add a Context ====
     649==== 4.4.1 Add a Context ====
    560650
    561651If you do not want to create a new context, skip this step. [[BR]]
    562652
    563653At the top-right corner there is a button called 'Add Context'. This allows you to create an Experiment context which can be useful when you want to store related experiments in the same folder with associated metadata. This Context can then be browsed using the iRODs web interface.
    564 ''Comment:'' In GIMI language ''Context'' is used to group together measurement data and metadata the belong to one experiment. [[BR]]
     654''Comment:'' In GIMI language ''Context'' is used to group together measurement data and metadata that belong to one experiment. [[BR]]
    565655
    566656Give the context a name, as shown below and click on 'Save': [[BR]]
    … …  
    571661
    572662
    573 ==== 5.4.2 Run Experiment ====
     663==== 4.4.2 Run Experiment ====
    574664
    575665Give your task a name. Select the Project, Experiment Context and Slice from the drop down menu on the screen.[[BR]]
    … …  
    595685You can click and drag it to the Plan screen just above Figure 1. This will display the graph along with the experiment description. This graph is also dynamic.[[BR]]
    596686This allows you to add any comments or details about the experiment results.[[BR]]
    597 Similarly, Experiments 2 and 3 can be run using the same procedure. Experiment 2 does not have a graph.[[BR]]
     687Similarly, Experiments 2,3 and 4 can be run using the same procedure. Experiment 2 does not have a graph.[[BR]]
    598688
    599689At any point during the run of your experiment or at the end of your experiment, click on Dump at the top of the Execute column to save your experiment data in iRODs.[[BR]] Each time you click on Dump a new .sql file will be created in your measurementData folder in iRODs.
    … …  
    605695Once you have your slice up and running you can visualize any experiment using !LabWiki.
    606696
    607 ==== 5.4.3 View results in iDrop ====
     697==== 4.4.3 View results in iDrop ====
    608698
    609699Any measurement related data will be stored on iRODs under the folder named with your experiment context. You can use [https://geni-gimi.renci.org:8443/idrop-web2/login/login iDrop] to download your measurement data in .sql format.
    … …  
    612702
    613703
    614 As you can see on the right pane at the top, there is a button that says "Download". Browse to the desired project, Experiment Context and click on this to save your measurement data to your local system. [[BR]
     704As you can see on the right pane at the top, there is a button that says "Download". Browse to the desired project, Experiment Context and click on this to save your measurement data to your local system.  [[BR]
    615705
    616706