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Re: reading large files [message #65968 is a reply to message #65967]

Sun, 29 March 2009 16:50

R.G. Stockwell
Messages: 363
Registered: July 1999

Senior Member

"David Fanning" <news@dfanning.com> wrote in message
news:MPG.2439b4e5d9afd00c98a681@news.giganews.com...
> R.G. Stockwell writes:
>
>> i have data from matlab that I converted to binary files,
>> and I am trying to read into IDL for further processing.
>>
>> I can allocate the arrays:
>>
>> tlen = 274L
>> ntracks = 253574L
>> ; allocate arrays
>> u = dblarr(tlen,ntracks)
>>
>>
>> but I cannot read the file. Here is the error message:
>> Insufficient system resources exist to complete the requested service.
>>
>> I'm using version 6.3 on windows, is this something that is
>> fixed in IDL 7?
>
> I have no trouble executing those commands on my 32-bit
> Windows XP OS in either IDL 6.4 or 7.0.3. But I've seen that
> insufficient system resources message before. Have you
> had an opportunity to restart Windows lately? I wouldn't
> be surprised if a Windows reboot helped in this case.

Good idea, i'll give it a shot, but I should point out
that I see the error on my laptop, and on my desktop
(both 32 bit windows machines, one is IDL 6.3 the other IDL 6.3,
i haven't tried it in IDL 7 yet).
Very curious.

It seems odd that the array can get allocated. But the read command
is what fails. The file is 555,834,208 bytes which doesn't seem
too big.

cheers,
bob

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[Message index]

		Re: reading large files By: R.G. Stockwell on Sun, 29 March 2009 19:04
		Re: reading large files By: ben.bighair on Sun, 29 March 2009 18:44
		Re: reading large files By: R.G. Stockwell on Sun, 29 March 2009 17:00
		Re: reading large files By: R.G. Stockwell on Sun, 29 March 2009 16:50
		Re: reading large files By: David Fanning on Sun, 29 March 2009 16:40

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