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Re: Low CPU usage

  • To: mathgroup at smc.vnet.net
  • Subject: [mg122202] Re: Low CPU usage
  • From: "mathgroup " <fizzymath at knology.net>
  • Date: Thu, 20 Oct 2011 07:44:33 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201110181142.HAA08932@smc.vnet.net><201110190935.FAA20130@smc.vnet.net> <CAMm5VKu0jvjAWGkMM5HscYMEXgEjWmcrpS6pH-UJ54wENZObLQ@mail.gmail.com>

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: [mg122202] 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


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