HELP! * GREY=local LOCAL HTML version of Foils prepared July 31,1995

Foil 12 LAN Video Servers in NPAC

From First Part of HPDC95 Video Server Presentation HPDC95 Pentagon City -- August 1,1995. by Marek Podgorny * Critical Information in IMAGE
Digital video is much more challenging than digital audio!
  • much higher bandwidth required; audio/video sync critical, decoding process CPU-intensive and hence imposing very strict real time constraints on both server and player.
  • Interactive VOD servers implemented in NPAC: concurrent interactive IP VOD servers
    • PC based Windows NT server (target: small corporate video installations): up to 4 MPEG-1 streams from single CPU/single disk
    • UNIX based server (target: larger corporate video and educational installations): scalable to few tenths of concurrent video streams
    • MPP servers (target: community video servers): scalable to 100s of concurrent video streams
  • Common features: unified server protocol; video format independent; interactive, support for HW and SW decoders, high performance via multithreading and asynchronous I/O

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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