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MathGroup Archive 2006

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Re: JLink OutOfMemoryError

  • To: mathgroup at
  • Subject: [mg70216] Re: [mg70156] JLink OutOfMemoryError
  • From: Todd Gayley <tgayley at>
  • Date: Sat, 7 Oct 2006 07:08:52 -0400 (EDT)

At 12:57 AM 10/6/2006, Allen, Matthew wrote:

>I'm trying to do large array crunching in Mathematica/Jlink.  The code
>works fine for small 2D arrays, but when I try to use large arrays (i.e.
>400000x64) I get a
>I've tried to increase the memeory supply by using:
>InstallJava[CommandLine->"C:\Program Files\Wolfram
>Research\Mathematica\5.2\SystemFiles\Java\Windows\bin\java.exe -Xms32m
>but it crashes or asks me to "Select the MathLink file to run."  Does
>anybody have any advice.  I really need to crunch big arrays and I don't
>want to use another system.  Thanks for any advice.


Use the JVMArguments option, which exists precisely so you don't have to 
mess with the Java command line:


Note that you will need a heap larger than the 128 Mb you specified.

Todd Gayley
Wolfram Research 

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