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+# GEC22 Demonstration March 2015
+
+This demonstration shows the use of Labwiki to plan, prepare, execute and
+monitor a research experiment. This experiment will involve a large number of
+resources from GENI aggregates in the US and the iMinds aggregate in Europe.
+
+----
+
+## 1. The Experiment
+
+A researcher has designed a 'follow-the-Sun' Content/Service delivery approach,
+where contents and services are always provided by datacentres located in a
+region with current daylight. These datacentres could be then solar powered.
+The researcher's algorithm may also cater for many other optmisation criteria,
+such as different renewable power source (e.g. wind turbine, tidal wave, etc...)
+or different constraints (e.g. cost).
+
+This experiment is one of the many experiments she could run to evaluate
+her new algorithm which dynamically decides which datacentre to redirect a new
+client request to.
+
+The initial back-of-the-envelop sketch for that experiment is illustrated below.
+
+<img src="https://raw.githubusercontent.com/mytestbed/gec_demos_tutorial/master/gec22_demo/exp_idea.png" style="width: 70%;" />
+
+The 3-step orchestration of that experiment is further detailed below.
+
++ Step 1:
+    + it is daytime in the geographic region #1
+    + many clients from region #1 and a few client from region #2 request some DASH videos
+    + the redirection algorithm directs them to a datacentre located in region #1
+
+<img src="https://raw.githubusercontent.com/mytestbed/gec_demos_tutorial/master/gec22_demo/exp_step1.png" style="width: 70%;" />
+
++ Step 2:
+    + it is now daytime in the geographic region #2
+    + many clients from region #2 and a few client from region #1 request some DASH videos
+    + the redirection algorithm directs them to a datacentre located in region #2
+
+<img src="https://raw.githubusercontent.com/mytestbed/gec_demos_tutorial/master/gec22_demo/exp_step2.png" style="width: 70%;" />
+
++ Step 3 is a repeat of step 1
+
+<img src="https://raw.githubusercontent.com/mytestbed/gec_demos_tutorial/master/gec22_demo/exp_step3.png" style="width: 70%;" />
+
+
+## 2. Preparing with LabWiki
+
+
+In LabWiki, the **Prepare** panel allows you to create, edit and view your experiment
+description, which is written using the [OEDL language.](http://mytestbed.net/projects/omf6/wiki/OEDLOMF6)
+
+
+To **create** a new experiment description, click on the "+" sign, enter a new
+filename, select "OEDL", and click on the "Create" button.
+
+![](https://raw.githubusercontent.com/mytestbed/labwiki/master/doc/quickstart/lw_prepare2.png)
+
+To **view** and **edit** an experiment description, type its name in the search
+field, for example the simple experiment `demo.oedl`.
+
+![](https://raw.githubusercontent.com/mytestbed/labwiki/master/doc/quickstart/lw_prepare3.png)
+
+After editing your experiment, do not forget to save it by clicking on the disk
+icon.
+
+![](https://raw.githubusercontent.com/mytestbed/labwiki/master/doc/quickstart/lw_prepare4.png)
+
+
+----
+
+## 3. Execute your experiment
+
+In the **Execute** panel, you configure and run your experiment, as well as
+view its progress and any defined graphs.
+
+![](https://raw.githubusercontent.com/mytestbed/labwiki/master/doc/quickstart/lw_execute.png)
+
+First, load an experiment description in the **Prepare** panel. For
+example, load the `demo.oedl`, then drag and drop the pen-and-paper icon
+from the **Prepare** to the **Execute** panel.
+
+![](https://raw.githubusercontent.com/mytestbed/labwiki/master/doc/quickstart/lw_execute2.png)
+
+You can now **configure** the parameters of your experiment, and press the Start
+button to **run** the experiment!
+
+![](https://raw.githubusercontent.com/mytestbed/labwiki/master/doc/quickstart/lw_execute3.png)
+
+----
+
+## 4. Observe and analyse
+
+While the experiment is running you can view its properties, any defined graph,
+and any message it produces.
+
+![](https://raw.githubusercontent.com/mytestbed/labwiki/master/doc/quickstart/lw_execute4.png)
+
+