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ThisworkislicensedunderaCrea veCommonsA ribu on4.0Interna onalLicense.
#THETA
2015
Bernard Meade
A/Prof Christopher Fluke
Prof Richard Sinnott
Dr Steven Manos
Dr Neil Killeen
Paul Mignone
Michael Wang
Seeing the Big Picture: A Digital
Desktop for Researchers
Fun facts for parties
• Large Synoptic Survey Telescope – 20TB/night, 60PB over ten years
• Australian Square Kilometer Array
Pathfinder (ASKAP) – 72TB/second (raw data stream)
– 120 million Blu-ray discs/day
• Square Kilometer Array – ~1EB/day (2x daily global Internet traffic)
– 100x LHC data collection
Screens vs Telescopes
Displays Resolution Image size (mp)
Standard desktop display 1680 x 1050 1.7
Full HD display 1920 x 1080 2.1
iPad (with Retina display) 2048 x 1536 3.1
Dell UltraSharp desktop display 2560 x 1600 4.1
Macbook Pro (2013) 2880 x 1800 5.2
4k UltraHD display 3840 x 2160 8.3
OzIPortal 15360 x 6400 98.3
Facility Image size (mp) Reference
HST Advanced Camera for Surveys 16 “ACS::The Advanced Camera for Surveys.” 2005.
http://acs.pha.jhu.edu/
Dark Energy Camera 520 Mohr, J. J., R. Armstrong, E. Bertin, G. E. Daues,
S. Desai, M. Gower, R. Gruendl, et al. 2012. “The
Dark Energy Survey Data Processing and
Calibration System.” arXiv Preprint
arXiv:1207.3189. http://arxiv.org/abs/1207.3189
Subaru Hyper Suprime-Cam 870 “Hyper Suprime-Cam.” 2011.
http://www.naoj.org/Projects/HSC/index.html.
Tiled Display Walls
The 29566 x 14321 pixel Carina Nebula mosaic from Hubblesite.org, with OzIPortal
(15360x6400), Dell Ultrasharp (2560x1600) and Standard Desktop Display (1680x1050)
sizes overlaid.
Image credit: Bernard Meade 2013
Tiled Display Walls
A Tiled Display Wall is a collection of commodity screens arranged to provide a
unified display surface.
Image credit: Bernard Meade 2013
Large format displays in astronomy
• Astronomy often paraded as a best use
case
• Very few research cases to support this
• We found some
benefits
• Still marginal
value
proposition
The OptIPortal Tiled Display Wall
2014 – Tiled Display Wall experiment
Meade, Bernard F., Christopher J. Fluke, Steven Manos, and Richard O.
Sinnott. 2014. “Are Tiled Display Walls Needed for Astronomy?” Publications of
the Astronomical Society of Australia 31. doi:10.1017/pasa.2014.29.
Carina nebula image source: http://hubblesite.org/gallery/album/nebula/pr2007016a/hires/true/
Large format displays in general
• People prefer using a TDW when
searching for small objects in large
image
• Physical navigation is better than virtual
navigation
• Overall performance is better with TDW
• 2 amateurs = 1 astronomer
• Can’t always see the forest for the trees
TDW Results – survey results
TDW Results – survey results (bezels)
UltraHD displays
• UltraHD (3840x2160) = 8.3mp
• No bezels
• <$1000
• Flat and Curved options
• 3D capable
• Compared to SDD and TDW, fits nicely
in between
TDW Results
Virtual Desktop Infrastructure
• Desktop as a Service
• Application streaming
• >> VNC, X11 Forwarding or NX protocol
• ~5-50Mbps
Virtual Desktop Infrastructure - Benefits
• Escaping the “computer lifecycle”
• No more “compute for screensavers”
• A big machine when you need it, a little
machine when you don’t…
• VMs can keep chugging no matter what
you are doing, or where you are
• VDI can adjust to the current available
bandwidth – phone, laptop, desktop…
Infrastructure for remote collaboration
Image sources: https://www.aarnet.edu.au/images/uploads/resources/National_Map_August_2014.pdf,
http://www.nectar.org.au/sites/default/themes/nectar/logo-title.png
Melbourne Uni Monash
QCIF
eRSA
Pawsey
NCI
UTas
Intersect
National eResearch Collaboration Tools and
Resources (NeCTAR)
• Nearly 36,000 cores with 18,000
in use across more than 6,000
instances
• 5,600 user registrations
• Uptime of 99.9% across all
services
• IaaS
Source: http://status.rc.nectar.org.au/allocations/
Testing the nations research bandwidth
• Is VDI viable in Australia?
• Small files are ok, but what about big
files? What about LOTS of files?
• Skymapper NCI
• ASKAP Pawsey
• Gigabytes 1, 2, 5, 10, 20, 50, 100,
200, 500, 1000
• Transfer to standard desktop on 1Gbps
at University of Melbourne
Transfer speeds
Daily data transfer speeds between the NCI and the University of Melbourne. There is little variability in the transfer times during the
week for each of the file sizes.
Transfer speeds - Comparison
Data transfer times to the University of Melbourne from NCI (grey) and Pawsey (black). In all cases, transfer time from Pawsey is
longer, and shows more variability.
Transfer speeds - Profile
Network profile for 1 GB transfers to the University of Melbourne from NCI and Pawsey.
Conclusion
• The age of Computing as a Utility is
nearly here
• Network stability is becoming more
important than bandwidth
• Sensor networks will need bandwidth
too
• Where will we be next year…?
• … in five years…?
• …in ten years…?
Thank you