10 (Материалы к экзамену)

Newsgroups: comp.parallel,comp.sys.super

From: eugene@sally.nas.nasa.gov (Eugene N. Miya)

Reply-To: eugene@george.arc.nasa.gov (Eugene N. Miya)

Subject: [l/m 2/27/98] network resources -- comp.parallel (10/28) FAQ

Organization: NASA Ames Research Center, Moffett Field, CA

Date: 10 Mar 1998 13:03:19 GMT

Message-ID: <6e3dmn$836$1@cnn.nas.nasa.gov>

Archive-Name: superpar-faq

Last-modified: 20 Jan 1998

10Related news groups, archives, test codes, and other references

12User/developer communities

14References, biblios

16

18Supercomputing and Crayisms

20IBM and Amdahl

22Grand challenges and HPCC

24Suggested (required) readings

26Dead computer architecture society

28Dedications

2Introduction and Table of Contents and justification

4Comp.parallel news group history

6parlib

8comp.parallel group dynamics

Related News Groups

-------------------

Child groups:

comp.parallel.pvm (unmoderated)

http://www.epm.ornl.gov/pvm/pvm_home.htm l

http://www.netlib.org/pvm3/index.html

http://www.netlib.org/pvm3/faq_html/faq. html

http://www.netlib.org/pvm3/book/node1.ht ml

ftp://netlib2.cs.utk.edu/pvm3

http://www.nas.nasa.gov/NAS/Tools/Outsid e/

comp.parallel.mpi (unmoderated)

http://www.mcs.anl.gov/mpi

comp.arch (unmoderated) # our parent news group.

comp.arch.arithmetic (unmoderated) # step kids

comp.arch.storage: many news groups discuss parallelism/HPC

comp.os.research (moderated, D. Long, UCSC)

comp.sys.convex (unmoderated)

# I wonder if this will become an h-p group.

comp.sys.alliant (unmoderated)

comp.sys.isis. Isis is a commercial message passing package for

C and Fortran (at least); features fault-tolerance.

# defunct:

# comp.sys.large (unmoderated) # The term "Big iron" is used.

# # more mainframes and distributed networks

comp.sys.super (unmoderated)

comp.sys.transputer (unmoderated) (consider also OCCAM here)

comp.unix.cray (unmoderated)

comp.research.japan (moderated, R.S.,UA)/soc.culture.japan (unmoderated)

sci.math.*

in many different forms, you will even find it in places

like bionet.computational, but it is not the intent of this list to

anywhere near complete. Locate application areas of interest.

comp.benchmark

aus.comp.parallel

fj.comp.parallel (can require 16-bit character support)

alt.folklore.computers: computing history, fat chewing

others

Note: all these news groups are given as options (and other news groups).

Nothing will stop you from posting in this news group on most any topic.

Where are the parallel applications?

------------------------------------

Where are the parallel codes?

-----------------------------

Where can I find parallel benchmarks?

=====================================

High performance computing has important historical roots with some

"sensititivity:"

1) Remember the first computers were used to calculate the trajectory of

artillery shells, crack enemy codes, and figure out how an atomic bomb

would work. You are fooling yourself if you think those applications

have disappeared.

2) The newer users, the simulators and analysts, tend to work for industrial

and economic concerns which are highly competitive with one another.

You are fooling yourself if you think someone is going to just place their

industrial strength code here. Or give it to you.

So where might I find academic benchmarks?

parlib@hubcap.clemson.edu

send index

netlib@ornl.gov

send index from benchmark

nistlib@cmr.ncsl.nist.gov

send index

See also:

Why is this news group so quiet?

Other news groups:

sci.military.moderated

We also tend to have many "chicken-and-egg" problems.

"We need a big computer."

"We can design one for you. Can you give us a sample code?"

"No."

...

New benchmarks might be best requested in various application fields.

sci.aeronuatics (moderated)

sci.geo.petroleum

sci.electronics

sci.physics.*

sci.bio.*

etc.

Be extremely mindful of the sensitive nature of collecting benchmarks.

Obit quips:

MIP: Meaningless Indicators of Performance

Parallel MFLOPS: The "Guaranteed not to exceed speed."

Where can I find machine time/access?

=====================================

Ask the owners of said machines.

What's a parallel computer?

===========================

A bunch of expensive components.

Parallelism is not obvious. If you think it is, I can sell you a bridge.

The terminology is abysmal. Talk to me about Miya's exercise.

the problem is mostly (but not all) in the semantics.

Is parallel computing easier or harder than "normal, serial" programming?

======================================== =================================

Ha. Take your pick. Jones says no harder. Grit and many others say yes

harder. It's subjective. Jones equated programming to also mean

"systems programming."

In 1994, Don Knuth in a "Fire Side Chat" session at a Conference when asked,

(not me):

"Will you write an "Art of Parallel Programming?"

replied:

"No."

Knuth did not.

One group of comp.parallel people hold that parallel algorithm is an oxymoron:

that an algorithm is inherently serial by definition.

How can you scope out a supercomputing/parallel processing firm?

======================================== ========================

Lack of software.

What's your ratio of hardware to software people?

Lack of technical rather than marketing documentation.

When will you have architecture and programming manuals?

Excessive claims about automatic parallelization.

What languages are you targeting?

See Also: What's holding back parallel computer development?

======================================== ==========

"I do not know what the language of the year 2000 will look like

but it will be called FORTRAN."

--Attributed to many people including

Dan McCracken, Seymour Cray, John Backus...

All the Perlis Epigrams on this language:

42. You can measure a programmer's perspective by noting his

attitude on the continuing vitality of FORTRAN.

--Alan Perlis (Epigrams)

70. Over the centuries the Indians developed sign language

for communicating phenomena of interest. Programmers from

different tribes (FORTRAN, LISP, ALGOL, SNOBOL, etc.) could

use one that doesn't require them to carry a blackboard on

their ponies.

--Alan Perlis (Epigrams)

85. Though the Chinese should adore APL, it's FORTRAN they

put their money on.

--Alan Perlis (Epigrams)

See also #68 and #9.