Transcript Slide 1

WP8 Meeting
Amsterdam 24.04.2012
Kiwi Team
PSNC
Workflow Manager
• Java standalone
application
• Single user
• Allows to design
experiment workflow
based on VEX file and
submit it for correlation
Transformation
• Workflow Manager  E-VLBI Platform
• Web based multi user application supporting the
following roles:
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PI – Principal Investigator
SS – Support Scientist
TO – Telescope Operator
CO – Correlator Operator
Admin – e-VLBI Platform Administrator
E-VLBI Platform
System architecture
Testbed
Proposed test scenario
1. Offline data correlation of data recorded on storage arrays
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Adding storage arrays to the current WP7 testbed
Providing component for reading telescope data and streaming it
to computing nodes (cluster computer)
The rest of the scenario: software correlation using e-VLBI
Platform developed within WP7
Data delivery
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Chunked
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Translation Nodes service can be installed at storage arrays to
deliver telescope data
The entire collection can be chunked (chunks equal in size) and
send for correlation over the network
Direct streaming
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Data is streamed form storage array directly to software correlator
(deployed at cluster computer)
Event – Location - Date
Data distribution
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Missing items
• Integration between storage arrays and cluster nodes
▫ Can we install translation service at storage array (chunked version)
▫ Software for sending and receiving data at the correlator side
▫ Alternate approach (preferable):
 component with public API at storage side,
 Correlator initiates connection and starts data transfer using the
available bandwidth
Event – Location - Date