l19_march28 - h o s t s e n d s t h e d a t a , c o d e , a...

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1 Lecture 19 – March 28, 2002 Mobility Information Grids
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2 Mobility Physical mobility mobileIP Ad-hoc networks MANETS Virtual mobility
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3 P D A L a p t o p C o m m . T o w e r S e n s o r ( a ) P h y s ic a l m o b ilit y . D e v ic e s c o n n e c t e d v ia w ir e le s s c h a n n e ls c h a n g e t h e ir lo c a t io n . M in ic o m p u t e r S e r v e r M a in f r a m e R o u t e r M o b ile c o d e M o b ile c o d e ( b ) V ir t u a l m o b ilit y . C o d e m ig r a t e s f r o m o n e h o s t c o n n e c t e d t o t h e I n t e r n e t t o a n o t h e r .
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4 C o d e ( a ) C o d e o n D e m a n d . T h e I n t e r n e t h o s t lo a d s t h e c o d e f r o m a r e p o s it o r y a n d lin k s it t o a n a p p lic a t io n . C o d e R e p o s it o r y I n t e r n e t h o s t ( e x e c u t io n s it e ) ( b ) R e m o t e E v a lu a t io n . A n I n t e r n e t h o s t s e n d s d a t a a n d c o d e t o a n o t h e r h o s t . T h e p r o c e s s s t a r t s e x e c u t io n a t t h e n e w s it e . R e q u e s t I n t e r n e t h o s t C o d e D a t a C o d e D a t a S t a t e ( c ) M o b ile A g e n t s . A n I n t e r n e t
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Unformatted text preview: h o s t s e n d s t h e d a t a , c o d e , a n d s t a t e o f a r u n n in g p r o c e s s t o a n o t h e r h o s t . T h e p r o c e s s r e s u m e s e x e c u t io n a t t h e n e w s it e . I n t e r n e t h o s t ( e x e c u t io n s it e ) I n t e r n e t h o s t ( e x e c u t io n s it e ) I n t e r n e t h o s t ( e x e c u t io n s it e ) 5 Information Grids Motivation Resource sharing: hardware resources, programs, services, data. Collaborative efforts Reliability Types Computational grids Service grids Data grids 6 Problems Heterogeneity Scalability Security Multiple Administrative Domains 7 U s e r s A d m in is tr a tiv e d o m a in s m a n y to o n e o n e to o n e m a n y to m a n y 8 g r a n u la r it y o f r e s o u r c e s a b c t r u e c y c le r e q u ir e m e n t p e r n o d e in v o lv e d in c o m p u t a t io n d e g r e e o f a u t o n o m y o f n o d e s g o p ti m a l t d e s i r a b l e g m i n g m a x...
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This note was uploaded on 07/30/2011 for the course COP 5600 taught by Professor Staff during the Summer '11 term at University of Central Florida.

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l19_march28 - h o s t s e n d s t h e d a t a , c o d e , a...

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