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Re: temporary() pitfall [message #22988 is a reply to message #22955]

Tue, 19 December 2000 11:58

Paul van Delst
Messages: 364
Registered: March 1997

Senior Member

Jaco van Gorkom wrote:
>
> Thanks, Wayne. I gained some new insights here.
>
>> The memory that you save with TEMPORARY() comes at the cost of losing
>> the original array contents. If you are worried about losing the
>> result of a long computation because of hitting a memory limit, then I
>> would SAVE the array to disk first. (I find that programs that use a
>> lot of TEMPORARY calls are also difficult to debug.)
>
> I agree that losing the original contents is the price that I was
> willing to pay. I guess I was just hoping that someone here would come
> up with another secret and magical keyword to ROUTINE_NAMES(), to
> recover that which seems lost forever. Always keep hoping for a
> miracle...
>
> SAVEing to disk is of course the best option,

Hmm, why not re-design the code to work in a smaller memory footprint? (E.g. using smarter, memory
efficient algorithms for doing linear algebra based on the type of matrix; sparse, banded, dense,
etc.) The up front cost will be high (wrt time at least), but at least you'll know the code has a
better chance of working when your dataset/data flow increases 100-fold.

jsut me musing and mucking about.

paulv

--
Paul van Delst Ph: (301) 763-8000 x7274
CIMSS @ NOAA/NCEP Fax: (301) 763-8545
Rm.207, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
Camp Springs MD 20746

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[Message index]

		Re: temporary() pitfall By: Jaco van Gorkom on Thu, 21 December 2000 09:26
		Re: temporary() pitfall By: Paul van Delst on Tue, 19 December 2000 11:58
		Re: temporary() pitfall By: Jaco van Gorkom on Tue, 19 December 2000 09:42
		Re: temporary() pitfall By: davidf on Mon, 18 December 2000 15:20
		Re: temporary() pitfall By: landsman on Mon, 18 December 2000 15:00

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