[AG-TECH] Microsoft Research Access Grid node up on one box

Jay Beavers jbeavers at microsoft.com
Thu Mar 15 17:31:25 CST 2001

I'm holding out for optimizations before stretching this to more capture
devices.  Both Pentium IV optimized compression codecs and optimized
video decoding software should improve CPU utilization.

I'm currently seeing ~70% CPU utilization with one CIF capture, four CIF
render, and ~20 QCIF render (as varies in the AG Lobby, I've seen up to
35) with almost all the CPU utilization attributed to VIC (not DDVIC).
I don't have enough CPU free to add 2-4 capture cameras.

 - jcb

-----Original Message-----
From: Mark Hereld [mailto:hereld at mcs.anl.gov] 
Sent: Thursday, March 15, 2001 3:12 PM
To: Jay Beavers; ag-tech at mcs.anl.gov
Cc: Todd Needham
Subject: Re: [AG-TECH] Microsoft Research Access Grid node up on one box

any cycles left for 4 camera captures in this config?  looks cool. --

At 02:33 PM 3/15/2001 -0800, Jay Beavers wrote:
>Just thought I'd let you know that I'm now running an Access Grid node
>on a single ~$4500 computer (not counting displays, microphones,
>cameras) successfully.  I've seen 35 QCIF & 3 CIF video streams work
>great spread across multiple monitors.  Some details:
>* Hardware
>         Dell Precision 330 Workstation (Pentium IV/1.4 GHz @ ~70% CPU
>utilization, 512 MB RAM w/ 155 MB in use)
>         Primary display adapter NVIDIA GeForce2 GTS
>         Secondary display adapter Matrox G200 MMS Quad (four analog
>video outs)
>         2x Dell LCD panels @ 1600x1200
>         3x Compaq MP2800 Projectors @ 1024x768
>         Integrated full duplex audio on motherboard
>         Integrated 100BaseT Ethernet on motherboard
>         Osprey-200 Audio/Video capture card
>         3x free PCI slots (2x PCI, 1x AGP in use)
>         El-cheapo microphone
>         Sony S-Video camera
>* Software
>         Windows 2000 Professional, Service Pack 1 & Windows Updates
>         Osprey-200 drivers v1.52
>         Access Grid Virtual Venue 2000-1219 software
>         Stock VIC v2.8ucl-1.1.3-win32 (necessary to enable send &
>receive on one machine, AG VIC has send disabled)
>         Stock RAT v4.2.13
>         Multicast Beacon v0.63
>* Changes from standard Access Grid 2000-1219 installation
>         Added stock VIC & RAT to add video send & audio send/receive
>one box
>         Moved all services to one Windows 2000 computer
>         Applied Internet Explorer MIME associations for AG components
>(previously sent to this list)
>         Modified start-beacon.bat to use "jview ..." instead of "java
>..." to work with MS VM native to Windows 2000
>* Issues uncovered during testing
>         Pre-Beta 2 Windows XP (next release of Windows 2000)
>incompatible with RAT send (RAT receives just fine)
>* Work moving forward
>         Investigating interoperable, more efficient Windows client
>applications based on DirectShow and TAPI functionality included in
>Windows 2000 & Windows XP
>         Investigating improving video quality & system efficiency
>different codecs like MPEG-4, MSVideo, & MSAudio
>         Investigating improved CPU efficiency with new Pentium-IV
>optimized codecs
>         Investigating software echo cancellation (part of upcoming
>Windows XP release)
>         Investigating fault tolerant multicast RTP video transport
>         Future integration work pending discussions with AG team @ ANL
>FYI, I'll be out of office next week and not very responsive to
>questions about this setup while offsite.
>  - jcb

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