KR Williams
Guest
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 Posted:
Mon Nov 21, 2005 9:00 am Post subject:
Re: 64 bit computing |
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In article <87iruq3wt5.fsf@kafka.homenet>, rambam@bigpond.net.au
says...
| Quote: | nospam@ab-katrinedal.dk (Niels Jørgen Kruse) writes:
I have now joined this group and i'm very interested in hearing about
64bit computing .I'm currently attending COSTAATT and recently got a
research project to do on this topis. I would like to know what kind of
jobs will need 64bit computing and why they would need it.
A quick google gets "College of Science, Technology and Applied Arts of
Trinidad and Tobago". Homework.
We are always delighted to help savants who need help with the urgent
demands of homework.
Explicit parallelism is the primary advantage of 64 bit computing.
With 64 bits, the data and the algorithm can be sliced ( see any
reference on "code slicing") 64-ways. This can be fed into a parallel
processor with 64 sub-processors, thus giving a 2^64 times speed-up.
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Wouldn't it be better to slice it 32 ways with each two-bit
processor four times as powerful as your one-bit processor? There
are a lot of two-bit processors around.
| Quote: | Actually achieving this theoretical speedup is difficult and
time-consuming. Writing compilers smart enough to expose this
explicit parallelism is a hard and potentially dangerous task. The
danger is because by the tendency of the Federal Morals Department to
arrest anyone working on projects that are "explicit".
Still, it offers an irresistible marketing opportunity. "Sandra does
64 bits" and "I am curious - 64 bit" are some of the marketing slogans
that come to mind.
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"Shave and a haircut - 32x 2bit"
--
Keith |
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