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Re: Problem when reading many HDF-EOS file [message #49142]

Tue, 04 July 2006 01:33

Maarten[1]
Messages: 176
Registered: November 2005

Senior Member

Roni Drori wrote:

> I have an IDL program that reads many HDF-EOS file (using EOS_GD_OPEN
> ....). When I'm reading more the ~100 files the program stops unable to
> open more files.
> What can be done to avoid this problem? (I'm reading simultaneously
> only one file and then closing it with EOS_GD_close)

Others have pointed out that there may be a memory leak in the IDL
routines themselves. Things to try:

- Circumvent the EOS layer, and use the HDF-4 routines directly. If the
leak is in the EOS routines, this might solve your problem.

- The HDF-5 routines do not have this problem, at least not under
Linux. Depending on the volume of the data, h4toh5 may be able to
provide you with a suitable alternative.

I've used the HDF-5 routines to perform approximately 60000 file
open/close operations in a single run without issues under Linux. IDL
6.2 under Windows gave trouble well before that number was reached.

Maarten

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[Message index]

		Re: Problem when reading many HDF-EOS file By: Maarten[1] on Tue, 04 July 2006 01:33
		Re: Problem when reading many HDF-EOS file By: peter.albert@gmx.de on Mon, 03 July 2006 23:38
		Re: Problem when reading many HDF-EOS file By: James Kuyper on Mon, 03 July 2006 07:30
		Re: Problem when reading many HDF-EOS file By: savoie on Wed, 05 July 2006 07:19

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