GLVF Feb 9 2006 Meeting Notes
EVL: Jason Leigh, Javier Girado, Luc Renambot, Byungil Jeong, Xi Wang
Alan Verlo, Andy Johnson, Ratko Jagodic
SARA: Ronald va der Pol
SIO: Atul Nayak
NCMIR: Raj (David) Singh
SFU: Brian Corrie
U Alberta: Pierre Boulanger
U Michigan: Erik Hofer, David Lee
GIST: JongWon Kim
KISTI: Gee Bum Koo
Purdue U: Gary Bertoline, Carlos Rafael Morales, Jeff Adams, Raj Arangarasan
AIST: Tomohiro Kudoh, Naotaka Yamamoto
Unable to call in:
NCSA: Dave Semeraro, Donna Cox, Bob Patterson
TRECC/NCSA: Jonas Talandis
SARA: Bram Stolk
Notes:
- Thank everyone for attending at off hours
- Important to keep momentum going with regular updates
- Sorry it is by phone – no one has compatible systems- perhaps the league of tiled display users will fix this
- Introduction of new participants- please everyone say who is here- provided names to make easier to remember
- Reiterate GLVF history:
o iGrid – GLVF created as a result of collaboration between Viz researchers
o SC – met to discuss multicast issues, and set first goal of HD conferencing
o Goals:
§ Provide next gen persistent viz environment to facilitate research and applications testing- showcase for our scientists
§ Short term is to get HD conferencing going- but not just repeat AG or Research Channel but to our tiled displays.
§ Once we have this working then it is a good time to announce ourselves to the wider community. Until then we want to restrict ourselves to a core community that can work together at a small scale to demonstrate something successfully for, say, GLIF or SC.
- Upcoming opportunities:
o GLIF mtg in Japan in September
o SC 2006 – tiled displays planned
- Update on status of HD solutions
- 1. HDV - ~$2500; 4 second latency. Includes audio. Playback via VLC works. SVC needs audio support. ~$2000 (EVL has this one) 25Mb/s
- 2. DVCPRO HD - Panasonic AG-HVX200 P2 HD ~$6000- latency about a quarter of a second. Intra-frame JPeg. (This is on major backorder but Dan Sandin has tried it yesterday). 100Mb/s.
- 3. HDSDI - U Washington solution - quarter second latency, 1.5Gb/s but could modify to truncate to <1G. Needs frame grabber ($24K-$64K) (EVL plans to get one) – HDSDI capture card- heavily used by broadcast studios. $700/$1800 for card. Point to point - <$12000. HD camera using analog output. Canon H1 is an option- Carlos ($9-10K). Research Grid based on Windows
- ISI / UltraGrid – similar to research channel- based on Linux. 2 capture cards: BlackMagic, AJA, DenLink- AGA works under Linux.
- 4. Silicon Imaging GigE Camera - ~$5000, latency less than 400ms, ~800Mb bandwidth, Linux decoding drivers not available yet.
- (EVL has one). No audio, so will need additional audio encoding system.
- Suggestion for a course of action:
o Adopt SVC as a standard plug-and-play for cameras that is compatible with streaming to SAGE for tiled displays
o SAGE is going to start advertising external capabilities/tools in a big way on the web site.
- The Multicast issue:
o Multicast vs Bridging
o Should try to do multicast testing anyway to see what the limits of current infrastructure is. Ie at 1+ Gb/s
o Order in which we need to bring up multicast and conduct initial tests; and site info that needs to be gathered for network configurations to occur.
- Adding your names to GLVF website. (permission to add new participants).
- Also Photonic workshop GLVF
- Homework assignments:
o Pass on multicast info to Alan Verlo
o Connectivity information
- JGN2 is via Abilene via 10G
Add each site’s equipment specs- including cameras and tiled display available.