MathGroup Archive 1999

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MathLink performance

  • To: mathgroup at
  • Subject: [mg20214] MathLink performance
  • From: "Roberto Abraham at IoA, Cambridge" <abraham at>
  • Date: Wed, 6 Oct 1999 21:06:31 -0400
  • Organization: University of Cambridge, England
  • Sender: owner-wri-mathgroup at

Hi -- I'm trying to improve the performance of my MathLink C code (which
reads an image file into Mathematica). I've noticed that the first time I
call my external function to access my image data it runs much more
quickly than when I call it subsequently (by about a factor of 10). Does
anyone have an explanation for this behaviour? I've tried contacting WRI
technical support about this issue but have not really gotten an answer.


Bob Abraham

PS. I'm running Mathematica under Redhat Linux 6.0. 

Roberto Abraham            |  E-mail: abraham at
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"What gets us into trouble is not what we don't know.
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 - Yogi Berra

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