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Re: How to improve the efficiency of IDL on cluster [message #84565 is a reply to message #84411] Wed, 05 June 2013 08:18 Go to previous messageGo to previous message
victor.cazcarra is currently offline  victor.cazcarra
Messages: 4
Registered: May 2013
Junior Member
El lunes, 3 de junio de 2013 17:09:00 UTC+2, Chang Liao escribió:
> Hi!
>
> I am currently running IDL on a Linux cluster.
>
> Due to the massive mount of remote sensing dataset, it takes days to finish just one year's calculation.
>
> I can specific the computer node, memory(48G/96G), and cores(24 cores) for my QBS job. So I am thinking shall I use multi-threading or other ways to speedup the calculation.
>
> Does anyone have any suggestion or experience in this related topics, I couldn't find too much on Exelis or Google. I do remember IDL has some demo in earlier version, but it's gone in IDL 8.0 +.
>
>
>
> Please help, thanks in advance!

Hi!

Did you try to use the object IDL_IDLBridge? ( http://slugidl.pbworks.com/w/page/29199259/Child%20Processes)

It is like a 'fork' in C to create childs to do a big work in parallel. I have done some work to parallelize big loops and it works very well.

regards,

Víctor

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