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MathGroup Archive 2011

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Re: Low CPU usage

  • To: mathgroup at smc.vnet.net
  • Subject: [mg122207] Re: Low CPU usage
  • From: DrMajorBob <btreat1 at austin.rr.com>
  • Date: Fri, 21 Oct 2011 06:21:44 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201110181142.HAA08932@smc.vnet.net>
  • Reply-to: drmajorbob at yahoo.com

I often think Mathgroup is the more valuable product; Mathematica is just  
an add-on.

Bobby

On Thu, 20 Oct 2011 06:44:33 -0500, mathgroup  <fizzymath at knology.net>  
wrote:

> Let me add ...
>
> In all the years I've watched Mathgroup,  I have yet to see a Question  
> go Unanswered....and, invariably,   every Question  gets an Answer from  
> Mathgroup showing  various methods for doing what they want with  
> Mathematica....
>
> How on Earth can it get any better then that???
>
> jerry blimbaum
>
> From: James Womack
> Sent: Wednesday, October 19, 2011 8:18 AM
> To: mathgroup
> Cc: mathgroup at smc.vnet.net
> Subject: Re: Low CPU usage
>
> I agree. It is a steep learning curve, but once you spend a while using  
> it you begin to see just how powerful a tool it is!
>
>
> On 19 October 2011 10:35, mathgroup <fizzymath at knology.net> wrote:
>
>   Ben...
>
>   I can't answer your question , however, would like , for what it's  
> worth, to
>   tell you my experience....
>
>   When I first started Mathematica it was frustrating as hell.....the  
> only
>   thing that saved me from throwing in the towel  was Mathgroup....and  
> their
>   Expertise is FREE....Amazing!!!
>
>   After a while I reached the point where you can't tear me away from
>   Mathematica....there are too many things of value in it for me....too  
> many
>   things that I can do with it that, by hand, would be abominable or
>   impossible.....I think Mathematica has endless applications whether
>   Education or Professionally and is only hampered by the Imagination of  
> the
>   User...
>
>   jerry blimbaum
>
>
>   -----Original Message-----
>   From: Ben Gear
>   Sent: Tuesday, October 18, 2011 6:42 AM
>   To: mathgroup at smc.vnet.net
>   Subject: Low CPU usage
>
>   All,
>
>   Frequently when Mathematica is trying to evaluate an expression the CPU
>   usage on my machine seems remarkably low; one core will be ~70% with  
> the
>   others only up to ~20%.  I'd expect one core at least to be maxed out.  
> The
>   hard disk isn't being hammered, RAM usage doesn't increase, so my  
> question
>   is: where is the bottle neck? I'm new to Mathematica so is this normal
>   behaviour? I'm using 64 bit Win 7.
>
>   On a related note some of my expressions just don't seem to ever  
> return,
>   particularly those involving Sum[] - again, is this normal?
>
>   My experience with Mathematica so far has mostly been frustrating.  I  
> can
>   get it to do dead simple things, but anything vaguely complex it seems  
> to
>   choke on. Just getting it to replicate what I can do by hand seems an  
> uphill
>   struggle. Do many use it professionally or is it mainly used in  
> education?
>
>   Regards,
>
>   Ben


-- 
DrMajorBob at yahoo.com



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