Changes between Version 17 and Version 18 of netKarma/GEC14_report


Ignore:
Timestamp:
07/22/12 17:43:39 (7 years ago)
Author:
scjensen@umail.iu.edu
Comment:

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  • netKarma/GEC14_report

    v17 v18  
    4848[[Image(ORBIT-Provenance-Generation.png, 50%)]]
    4949
    50 As seen in this diagram, the provenance of an experiment run on ORBIT can be captured in NetKarma using the ORBIT NetKarma adaptor that ingests data that is already generated as part of the experiment.  This includes: (1) the script for the ORBIT experiment, (2) data retrieved using the OMF interface's "info" and "list clients" methods, and (3) data retrieved from the OML database.  The adaptor combines these data sources to generate event notification messages that are sent to the NetKarma server, where they are combined to create the annotated OPM graph for the experiment. 
     50As seen in this diagram, the provenance of an experiment run on ORBIT can be captured in NetKarma using the ORBIT NetKarma adaptor that ingests data that is already generated as part of the experiment.  This includes: (1) the script for the ORBIT experiment, (2) data retrieved using the OMF interface's "info" and "list clients" methods, and (3) data retrieved from the OML database.  The adaptor combines these data sources to generate event notification messages that are sent to the NetKarma server, where they are combined to create the annotated OPM graph for the experiment.
     51
     52The provenance graph displayed in the above image is based on the “Many-to-One Communication” example in the OTG tutorial.  This experiment consists of seven senders and a single receiver.  In this experiment we varied the size and the rate of the packets sent by each of the senders.  The experiment was run on GENI ORBIT resources at Rutgers University and is displayed using the NetKarma visualization plug-in for the Cytoscape visualization tool. As with other provenance graphs captured in NetKarma, the plug-in tool loads an OPM graph from Karma and converts the OPM XML file into a Cytoscape visualization.
     53
     54The Plug-in has been enhanced to include an ORBIT visualization style that can be applied to color-code the packets sent and received based on the origin (in this example, which of the seven OTG nodes sent the packet).  In this visualization we can see that the OTR receiver node in the upper left corner received packets only from two of the nodes since all of the packets received are colored either yellow or green to correspond with the OTG node that sent them.  Zooming in, experimenters can review the metadata annotations for each packet or node that had been harvested by the NetKarma Adaptor as shown in the following screen capture:
     55
     56The provenance graph for the above illistration is available [here] or can be downloaded from the NetKarma Portal (as participants did in the NetKarma tutorial at GEC14).  The ORBIT visualization style which color-codes the nodes in the provenance graph based on their origin is included in the latest Netkarma plug-in source code which is available from the Karma SourceForge page: https://sourceforge.net/projects/karmatool/
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