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Re: Help Large_array [message #52614]

Tue, 20 February 2007 09:27

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Tue, 20 Feb 2007 12:15:07 +0000, Nigel Wade wrote:

>> b) What's the solution to the operation of large array once and for
>> all(I mean by software not changing hardware)?
>
> There is no solution if your hardware is 32bit. You need 64bit hardware, a 64bit
> OS and a 64bit version of IDL if you want to use arrays of that size.

Or you need to reconsider your methods to use only as much memory as your
system can support at a given time, working on data in chunks. ASSOC is
one (limited) IDL method for doing this, but there are others. It also
really helps if you layout your data such that the pieces which are needed
for a given calculation are nearby each other in memory.

JD

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[Message index]

		Re: Help Large_array By: JD Smith on Tue, 20 February 2007 09:27
		Re: Help Large_array By: Nigel Wade on Tue, 20 February 2007 04:15
		Re: Help Large_array By: Paolo Grigis on Tue, 20 February 2007 02:53
		Re: Help Large_array By: wx_f on Tue, 20 February 2007 01:44
		Re: Help Large_array By: Paolo Grigis on Tue, 20 February 2007 00:02
		Re: Help Large_array By: Brian Larsen on Mon, 19 February 2007 13:57
		Re: Help Large_array By: liamgumley on Tue, 27 March 2007 07:20

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