Transcript Distributed Computer Architecture

Distributed Computer
Architecture
Benjamin Jordan, Kevin Cone, Jason
Bradley
What is Distributed Computer
Architecture?
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Distributed computing is any computing that involves multiple processors
local or remote from each other that each serve a role in solving a larger
problem.
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All multiprocessor systems are distributed systems because the
processing load is divided among a group of processors that work
collectively to solve a problem.
Grid Computing
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Grid computing is an example of distributed
computing.
Grid computing uses the resources of many
computers connected by a network (generally
the Internet) to solve computational problems
that are too large for any single computer.
Grid computing utilizes computer resources
such as memory and cpu capacity.
The challenge is establishing and enforcing
the proper authorization techniques to allow
remote users to control computing resources
out of their domains.
Standards/ Protocols
One of the requirements of distributed computing is a set of standards that specify how objects
communicate with one another. There are currently two chief distributed computing standards:
CORBA and DCOM.
RPC: Remote Procedure Call
● Remote procedure calls (RPC’s) extend the concept of distributed computing and help provide
the necessary transparency for resource sharing.
CORBA: Common Object Request Broker Architecture
● An architecture that enables pieces of programs, called objects, to communicate with one
another regardless of what programming language they were written in or what operating system
they're running on.
DCOM: Distributed Component Object Model
● DCOM uses an “RPC mechanism” to transparently send and receive information between COM
components (i.e., clients and servers) on the same network.
Global Computing
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Also known as public resource computing, is a specialization of grid computing where the
computing power is supplied by volunteers, many of whom may be anonymous.
The goal is to utilize idle computer time from millions of PCs, workstations and servers to solve
otherwise unsolvable or impractical problems.
One Example of thing type of distributed computer system is SETI@Home.
○ The project has been highly successful, with two million years of CPU time and 50TB of
data being accumulated in its six-year run.
Other global and grid computing tasks, including protein folding, cancer research, weather
models, molecular modeling, financial modeling, earthquake simulations, and various
mathematical problems.
Global Computing (Continued)
● Several global computing projects exist
today
Asteroids@home, Charles University in Prague,
Czech
o Climateprediction.net, Oxford University
o LHC@home, European Organization for Nuclear
Research(CERN)
o etc...
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Berkley Open Infrastructure for
Network Computing
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Known as BOINC.
Open Source
Takes advantage when a computer is idle
Two million years of CPU time
50TB of data in 6 years
BOINC Software
Cloud Computing
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Cloud computing concerns computing services provided by a collection of loosely coupled
systems connected to service consumers via the Internet “cloud.”
Cloud computing differs from classical distributed computing because the Cloud defines itself
only in terms of the services it provides, rather than by a fixed hardware architecture upon which
applications are deployed.
Enterprises that have embraced this approach have done so because it means that the company
does not need to worry about buying and maintaining its own servers for the applications that it
puts in the Cloud.
Ubiquitous Computing
● Ubiquitous computing is the idea that computers can be
completely embedded into our lives in a way that is
easy to use and seemingly invisible.
● Computing is made to be anywhere/everywhere.
● Way multiple devices interact with each other.
Sources
http://whatis.techtarget.com/definition/distributed-computing
http://www.webopedia.com/TERM/D/DCOM.html
http://www.webopedia.com/TERM/D/distributed_computing.html
http://www.webopedia.com/TERM/C/CORBA.html