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enabling /largeaddressaware for cygwin in windows 7 64-bit
- From: "Amidon, William H." <wamidon at middlebury dot edu>
- To: "cygwin at cygwin dot com" <cygwin at cygwin dot com>
- Cc: "Amidon, William H." <wamidon at middlebury dot edu>
- Date: Thu, 4 Aug 2011 15:19:17 +0000
- Subject: enabling /largeaddressaware for cygwin in windows 7 64-bit
Hello,
I am not a programming expert, and i wonder if you could give me some basic advice.
I am running cygwin on a 64-bit Dell XPS, running Windows 7, with a Core i5 processor, and 12 GB of RAM installed.
The fortran 90 code I am running keeps running out of memory (virtual memory or stack overflow errors) on jobs that the computer should easily handle. I have increased the paging memory to 36 MB, but I am afraid that CygWin is still being limited to ~ 1 GB of memory.
My problem is very similar to what is described here:
http://cygwin.com/ml/cygwin/2011-01/msg00196.html
I followed the instructions at [1] and [2] to increase the heap chunk available to cygwin, but I have also read that adding a /largeaddressaware link might further increase the amount of memory available to cygwin (see [3], which confused me a lot). I have not been able to find clear instructions about how to do this for cygwin, could you help?
Also, I am interested in any tips about how to maximize the amount of memory available to cygwin given my 64-bit windows 7 setup! Thanks very much for your kind help to a very helpless geologist!
Will Amidon
[1] http://www.cygwin.com/cygwin-ug-net/setup-maxmem.html
[2] http://cygwin.com/ml/cygwin/2010-04/msg00983.html
[3] http://www.cygwin.com/ml/cygwin-developers/2011-06/msg00002.html
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