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How to allocate memory for an array of more than 2G [message #71677]

Tue, 13 July 2010 16:23

minchen
Messages: 8
Registered: February 2010

Junior Member

Hi,
I have a trouble to read a .h5 file which is about 3G.
I am using {x86_64 linux unix linux 7.1.1 Aug 21 2009 64 64} IDL. So
you see, my system is 64 bit and IDL is also 64 bit. The problem I
cannot allocate a memory for an array more than 2G. I do not know why?
Can someone help me?
Thanks a lot!

IDL> help,/memory
heap memory used: 818394, max: 1074560678, gets: 1069,
frees: 258
IDL> a=bytarr(1024,1024,1024)
IDL> help,/memory
heap memory used: 1074560268, max: 1074560367, gets: 1081,
frees: 269
IDL> a=bytarr(1024,1024,1024)
% Unable to allocate memory: to make array.
Cannot allocate memory

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		How to allocate memory for an array of more than 2G By: minchen on Tue, 13 July 2010 16:23
		Re: How to allocate memory for an array of more than 2G By: Nigel Wade on Thu, 15 July 2010 01:18

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