Connecting the Invisible Extremes of Computing David Culler http://www.cs.berkeley.edu/~culler U.C. Berkeley Summer Inst. on Invisible Computing July, 1999.

Report
Connecting the Invisible Extremes of
Computing
David Culler
http://www.cs.berkeley.edu/~culler
U.C. Berkeley
Summer Inst. on Invisible Computing
July, 1999.
What I do
• Parallel Computer Architecture
• Lean Operating Systems
• Novel Programming Environments
=> Lean, Fast & Flexible Communication Primitives
–
Active Messages
=> Design of Federated Systems of Systems
–
NOW (Network of Workstation)
• Current Projects
–
–
–
–
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Millennium: Campus-wide Cluster-of-Clusters Testbed
Ninja: Proactive Infrastructure Services
Endeavour: Information Utility based on Fluid Software
UCB (universal computing @ berkeley)
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Expanding the Spectrum
• Scalable Infrastructure
–
–
–
–
highly available
persistent state (safe)
databases, agents
service programming environment
Service
Path
• Desktops
– max out at few 100M
– in your face
– connected to the infrastructure
• Ubiquitous Devices
– billions
– sensors / actuators
– PDAs / smartphones / PCs
– heterogeneous
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Issues Converge at the Extremes
• Powerful Services on “Small” Devices
– massive computing and storage in the infrastructure
– active adaptation of form and content “on the way”
• Lean, Flexible Communication Building-Blocks
– simplicity is the key to efficiency
• Federated System of Systems
• Availability, Automatic Configuration and
Management
• Plug it all together and have it DWYM!
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Ninja Vision
• You walk into a room
• Your PDA connects to the local
infrastructure and asks it to build a custom
GUI
• Next, your PDA asks the infrastructure for a
path out to
your personal information space, where
agents are processing your
e-mail, v-mail, faxes, and pages
You have complete, secure,
optimized access to local devices
and your private resources
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Push Services into an Active Infrastructure
Clients
Clients
Clients
Open
Infrastructure
Services
Clients
Clients
Servers
Clients
Servers
Servers
=> enable Distributed Innovation of Scalable, Avail. Services
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Millennium: Large-Scale Testbed
Massive Cluster
Clusters
Gigabit Ethernet
Servers
Wireless
Desktop
PCs
Cell Phones
PDAs
Future Devices
• Campus-wide cluster-of-clusters extended down
• Management by Services
– push monitoring service into nodes
• Resource allocation by market services
– banks, brokers, merchants
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Endeavour Vision/Objective
• Enhancing human understanding through
information technology
– Make it dramatically more convenient for people to interact
with information, devices, and other people
– Supported by a “planetary-scale” Information Utility
» Stress tested by challenging applications in decision
making and learning
» New methodologies for design, construction, and
administration of systems of unprecedented scale and
complexity
– Figure of merit: how effectively we amplify and leverage
human intellect
• A pervasive Information Utility, based on “fluid
systems technology” to enable new approaches
for problem solving & learning
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Proposed Approach
• Information Devices
– Beyond desktop computers to
MEMS-sensors/actuators with
capture/display to yield
enhanced activity spaces
• Information
Utility
• Information
Applications
– High Speed/Collaborative
Decision Making and Learning
– Augmented “Smart” Spaces:
Rooms and Vehicles
• Design Methodology
“Fluid”, Network-Centric
System Software
– Partitioning and management
of state between soft and
persistent state
– Data processing placement
and movement
– Component discovery and
negotiation
– Flexible capture, selforganization, and re-use of
information
– User-centric Design with
HW/SW Co-design;
– Formal methods for safe and
trustworthy decomposable and
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What I’m looking for in an Architecture
for Billions of Devices
• Reservoirs, Flows, Self-Checking
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Natural Tides of Innovation
Innovation
Integration
Personal Computer
Workstation
Server
Log R
Minicomputer
Mainframe
Time
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universal
Function: adjective
1 : including or covering all or a whole collectively or distributively
without limit or exception
2 a : present or occurring everywhere b : existent or operative
everywhere or under all conditions <universal cultural patterns>
3 a : embracing a major part or the greatest portion (as of
mankind) <a universal state> <universal practices> b :
comprehensively broad and versatile <a universal genius>
4 a : affirming or denying something of all members of a class or
of all values of a variable b : denoting every member of a class
<a universal term>
5 : adapted or adjustable to meet varied requirements (as of use,
shape, or size)
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