Re: Google set to make its own energy efficient ARM Server chip

Newsgroups	comp.os.linux.advocacy, comp.os.linux.embedded, uk.comp.os.linux
From	unruh <unruh@invalid.ca>
Subject	Re: Google set to make its own energy efficient ARM Server chip
References	(5 earlier) <q4zru.490$rx5.425@fx05.am4> <E4Hru.610246$rL6.270787@fx14.iad> <xGKru.25855$fY2.18253@fx04.am4> <uDMru.15$DB4.7@fx14.iad> <pY0su.40991$o61.523@fx10.am4>
Message-ID	<KO1su.930$m_6.304@fx25.iad> (permalink)
Date	2013-12-17 19:42 +0000

Cross-posted to 3 groups.

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On 2013-12-17, 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> wrote:
> unruh wrote:
>
>> On 2013-12-16, 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com>
>> wrote:
>>> unruh wrote:
>>>
>>>> 
>>>> Not sure either what you mean by "digital versions of quantum
>>>> computers".
>>>
>>> Analog computers are different from digital computers.
>>> Digital versions of analogue computers can be made.
>>>
>>> Digital computers are different from quantum computers.
>>> Digital versions of quantum computers can be made.
>> 
>> A quantum computer is not an analog computer. It uses bits to represent
>> numbers just like any other digitial computer does. That those bits can
>> be in a superpostion of states, or that they can be entangled with other
>> bits does not make it analog.
>> It is certainly true that a  quantum computer working on a problem which
>> can be sped up by quantum computation, behaves differently from a
>> classical computer, but just as for classical digital computers, a
>> quantum computer has a few operations which are universal. Ie, any
>> quantum computation can be implimented by repeated application of that
>> minimal set of operations.
>> 
>> The key feature as far as energy efficiency is concerned is that
>> quantum operations must  in general be reversible which means that
>> intheory they require no energy to run. That is of course not true in
>> practice, but they need very very little energy to run.
>> 
>> Note that attempting to simulate quantum operations on a classical
>> digitial computer might be what you refer to, but that would be a
>> completely stupid thing to do, since the memory and time requirements
>> would be far  greater than even any classical computer solving the
>> same problem-- it would offer no advantage at all
>
>
> The last paragraph is a collection of sweeping statements :)
>
> Not particularly true as what you are referring to is a simulation
> of a quantum computer. I'm talking about direct behavioural
> implementations of quantum behaviour in the logic gates and
> ways to making use of that to solve practical problems.
> A half way house between a real quantum computer and a simulation
> of a quantum computer.
> The product of that is computing devices with 10x to 100x performance
> enhancement over a digital computer in exchange for 5% extra silicon.

Reference please. 
There is no "halfway house". And where you get that 10x to 100x
improvement I do not know. 
Entanglement is a harsh mistress.

>
>

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Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-14 21:18 +0000
  Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-14 22:52 +0000
    Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-14 23:38 +0000
      Re: Google set to make its own energy efficient ARM Server chip Les Cargill <lcargill99@comcast.com> - 2013-12-14 18:16 -0600
      Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-15 22:47 +0000
        Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 00:45 +0000
          Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-16 02:08 +0000
            Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 03:30 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
            Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-16 15:16 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
            Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 17:51 +0000
              Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 21:56 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 00:10 +0000
                Re: Google set to make its own energy efficient ARM Server chip Lusotec <nomail@nomail.not> - 2013-12-17 03:30 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 03:48 +0000
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-17 18:44 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 19:42 +0000
                Re: Google set to make its own energy efficient ARM Server chip Thad Floryan <thad@thadlabs.com> - 2013-12-17 12:23 -0800
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-18 00:19 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-18 00:34 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-18 11:06 +0100
                Re: Google set to make its own energy efficient ARM Server chip Frank Miles <fpm@u.washington.edu> - 2013-12-18 16:18 +0000
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-18 19:19 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-19 10:05 +0100
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-19 20:45 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-20 09:40 +0100
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-20 20:55 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-19 09:54 +0100
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 19:40 +0000
    Re: Google set to make its own energy efficient ARM Server chip Les Cargill <lcargill99@comcast.com> - 2013-12-14 18:15 -0600

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