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Re: memory [message #49896 is a reply to message #44925]

Wed, 30 August 2006 13:13

Jean H.
Messages: 472
Registered: July 2006

Senior Member

> These are all just characteristics of 32-bit Windows. You'll either have
> to redesign your algorithms to not rely on such large allocations or
> move to a 64-bit OS. A 64-bit address space suffers less from
> fragmentation.
>
> Some folks have reported better success by moving to 32-bit Linux, because
> the virtual address fragmentation problem is not as severe. Windows
> divides up the user portion on the virtual address space into areas for
> specific uses and can load things in the middle of large free blocks.
> Both of these actions fragment the address space.
>
> Karl

Thanks for this point... I guess it is the source of my problems since
the first thing my application does it to "reserve" most of the memory
by creating a huge array and setting it back to 0..
Also each array requires about 400 Mbytes ... I don't have a clue why
none of them is sent to the virtual memory, even with a 4G of virtual mem.

Jean

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[Message index]

		memory leak with HDF5? By: peter.albert@gmx.de on Thu, 21 July 2005 07:30
		Re: memory By: Jean H. on Wed, 30 August 2006 13:13
		Re: memory By: Karl Schultz on Thu, 31 August 2006 09:05
		Re: memory By: Karl Schultz on Wed, 30 August 2006 09:46
		Re: Memory Leak By: chris_torrence@NOSPAM on Tue, 28 July 2009 11:44
		Re: Memory Leak By: David Fanning on Mon, 27 July 2009 15:21

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