Advanced Grid Applications

Transcription

1 Internatinal Telecmmunicatin Unin Advanced Grid Applicatins /OGF Wrkshp n Next Generatin Netwrks and Grids Piet Demeester, IBBT-UGent piet.demeester@intec.ugent.be

2 Outline Media Grid Cnsumer Grid Thin Client Why? What? Requirements? 2

3 WHY Grid fr media prductin? Bradcasters, Cntent Prducers, Film Studi s, Cinema mve frm tape based t file based envirnments Fast ingest and flexible prcessing Hierarchical strage (nline, near-line, ffline) Easy management, search and retrieval f media assets (based n meta-data) Easy distributin and sharing f vide material (twards ther prfessinal players but als twards public market) 3

4 WHAT? Typical MediaGrid site M HiRes M HiRes M HiRes E 4

5 WHAT? Media Grid cperatin TV prductin & distributin Prgram suppliers Cinema Radi BBC Ireland BBC Wales BBC Sctland BBC VRT Westijnvis VMM 5

6 REQUIREMENTS Prcessing pwer (vide editing, rendering, transcding, ) Strage capacity (lw reslutin, high reslutin, hierarchical) Netwrk cnnectivity fr distributed access and cllabrative wrking 6

7 REQUIREMENTS: Media cmpany prfiles Bandwidth CPU Strage QS nr Ingest L- r HiRes A/V Lw 0,65-25,7 GB/h High 1 Quality check, HiRes brwse HiRes A/V Lw 25,7GB/h Lw 2 LRes brwse LRes A/V Medium 0,65GB/h Lw 3 LRes rugh EDL LRes V; L- & HiRes A High 0,5GB/h;0,15-0,7GB/h Medium 4 Send/Restre archive L- r HiRes A/V Lw 0,65-25,7GB/h Medium 5 Craft editing 5-10 HiRes A/V High ,7GB/h High 6 Rendering, cnfrming, transcding HiRes A/V High 25,7GB/h Lw 7 Playut 1-40 HiRes A/V Lw ,7GB/h High 8 Audi editing L- r HiRes A/V High 0,65-25,7GB/h Medium 9 Graphic creatin HiRes V High 25GB/h Lw 10 ingest vide jurn. audi ed. vide ed. prd./direct r playut Reginal TV prd Natinal TV prd TV pst prd TV bradcast TV prgram supplier archivis t Vide n demand 2 /OGF Wrkshp 5 n Next Generatin Netwrks and 2Grids 1 Radi prd./bradcast 7

8 Outline Media Grid Cnsumer Grid Thin Client What? Why? Requirements? Slutins? 8

9 WHY grid fr cnsumers? Strage capacity and cmputing pwer: managed utilities (water, electricity, ) Strage and retrieval f persnal multimedia assets (audi, vide, pht, ) Prcessing f multimedia infrmatin (persnal cntent creatr, 3D rendering, gaming, virtual reality, ) OPEX (frequent hardware upgrades) and CAPEX (management, security, data prtectin, ) reductin 9

10 WHAT are Cnsumer Grids? GUNI Grid User-Netwrk Interface GRNI Grid Resurce-Netwrk Interface GUNI GUNI GRNI GRNI GUNI GRNI 10

11 WHAT are Cnsumer Grids? GUNI = Grid User Netwrk Interface Interperable prcedures between user and Grid Submits jbs (with requirements, e.g. data/cpu, time cnstraints, ) Directly via cntrl plane, r middleware GRNI = Grid Resurce Netwrk Interface Resurces can dynamically enter/leave netwrk Annunces prcessing and/r strage resurces Signaling & cntrl interface between NE and netwrk 11

12 REQUIREMENTS Eg. vide editing: 2Mpx/frame fr HDTV, suppse effect requires 10 flps/px/frame, then evaluating 10 ptins fr 10s clip is 50 Gflps (tday s high perfrmance PC: <5 Gflps/s) Virtual reality: rendering f 3*10 8 plygns/s 10 4 GFlps Online gaming: e.g. Final Fantasy XI: gamers Multimedia editing 12

13 REQUIREMENTS Invisible and transparent fr the user Capable f prcessing a very large amunt f small jbs frm a large amunt f users and prcesses Capable f managing large amunts f very hetergeneus media assets Cst efficient Applicatin CPU Data Netwrk Rbust #users Secure RealTime Online Gaming Virtual Reality Cll.Wrking Multimedia edit Data Mining Cnventinal requirements Next Generatin Grids 13

14 SOLUTION: Optical Netwrks Optical Circuit Switching (OCS) cntinuus bit-stream pre-established light-paths shuld be dynamic Optical Burst/Packet Switching (OBS/OPS) chunks f bits, in bursts/packets frwarding based n header a c b b c c e.g. label switching, GMPLS Hybrids d e f f f 14

15 Pr: Optical Circuit Switching Guaranteed service quality nce set-up (cf. reserved lambda), thus fixed latency, n jitter, etc. Fixed signaling verhead, independent f (large) jb size Cn: Signaling verhead nt acceptable fr relatively small jbs Requires (cmplex) grming if frequent set-up and tear-dwns are t be avided (i.e. if t slw) Less flexible, dynamic than OBS/OPS, cf. light-path set-up and tear-dwn : [7] cites 166ms/switch RSVP-TE speedup needed 15

16 Pr: Optical Burst/Packet Switching Extremely flexible, dynamic Inherent statistical multiplexing f available bandwidth (ver multiple lambdas) Cn: Packet/Burst header prcessing verhead Requires jb aggregatin if jb size t small cmpared t header verhead Difficult t deliver strict QS guarantees withut 2-way reservatin Technlgy nt that mature 16

17 Hybrid OCS/OBS Chsing between OCS and OBS depends n Optical technlgy (OBS requires faster switches, burst mde Rx/Tx and regeneratrs, ) Jb sizes: Signaling time Jb transmissin time OBS-based OCS-based Jb size Hybrid architectures can ffer a cmprmise 17

18 Hybrid OBS/OCS Parallel: chice t either set-up OCS circuit between surce & destinatin, r use OBS Nte: can be verlay, where OBS makes use f OCS cnnectins between OBS ndes 18

19 Hybrid OBS/OCS: verspill ruting A D B C Burst switching A A D B A B verspill B D C D C D verspill Circuit switching 19

20 Outline Media Grid Cnsumer Grid Thin Client What? Why? Requirements? 20

21 WHY grid fr mbile terminals? Rapid imprvements in netwrk bandwidth, cst, and ubiquity cmbined with the security hazards and high ttal cst f wnership f persnal cmputers have created a grwing market fr thin-client cmputing Currently the cncept is mainly applied t wired thin-client cmputing extend twards wireless thin-client cmputing 21

22 WHAT are W-Thin Clients? The user ends up with wearable interfaces (input and utput) Interfaces get mre lightweight All ther functins are prvide by the wireless netwrked grid 22

23 REQUIREMENTS Netwrk: always n Terminal: lightweight, lw pwer and flexible, I/O as basic functinality Data: accessible everywhere Prcessing pwer: accessible everywhere Applicatins: thin client enabled in a mbile envirnment (e.g. pwer ptimized, clse t the user, ) 23

24 Cnclusins Multimedia prcessing is a majr driver fr new grid applicatins Evlutin frm the prfessinal market (Media Grid) twards the hme/ffice (Cnsumer Grid) and mbile market (W-Thin Client Grid) 24