Grid vs. Parallel vs. Distributed Post: 302094618

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Special Forums UNIX and Linux Applications High Performance Computing Grid vs. Parallel vs. Distributed Post 302094618 by rhfrommn on Monday 30th of October 2006 11:23:58 AM

10-30-2006

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I agree mostly with Perderabo's definitions. I'd just add examples.

Parallel Computing - A vector supercomputer like a Cray. Older Cray's like the Y/MP and so on. I know they are now making more distributed/clustered supercomputers too, but the big single Cray boxes are the example of Parallel supercomputing.

Distributed Computing - A huge set of systems all doing the same thing. You can add, remove, and replace an individual one without affecting the overall service at all. Something like the huge Google linux farms that handle search requests.

Grid Computing - I can't come up with a better example than Perderabo's SETI screensaver grid. A commercial example would be Sun's grid they rent out for $1 per hour per cpu.

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LEARN ABOUT LINUX

uuid

UUID(3) 							    Libuuid API 							   UUID(3)

NAME

       uuid - DCE compatible Universally Unique Identifier library

SYNOPSIS

       #include <uuid/uuid.h>

DESCRIPTION

       The UUID library is used to generate unique identifiers for objects that may be accessible beyond the local system.  This library generates
       UUIDs compatible with those created by the Open Software Foundation (OSF) Distributed Computing Environment (DCE) utility uuidgen.

       The UUIDs generated by this library can be reasonably expected to be unique within a system, and unique across all systems.  They could	be
       used, for instance, to generate unique HTTP cookies across multiple web servers without communication between the servers, and without fear
       of a name clash.

CONFORMING TO

       OSF DCE 1.1

AUTHOR

       Theodore Y. Ts'o

AVAILABILITY

       libuuid is part of the util-linux package since version 2.15.1 and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

SEE ALSO

       uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3), uuid_time(3), uuid_unparse(3)

util-linux							     May 2009								   UUID(3)