Re: Memory Leak sending array to procedure that wraps gsn_csm_contour_map_ce

Hi William,

NCL V5.1.1 is almost 3 years old. We have fixed many memory leaks since then, especially in NCL V6.0.0 where we extensively ran valgrind on the code to test for memory leaks.

When we get a chance, we'll try to see if there are memory leaks with the current version (NCL 6.1.0-beta, to be released soon) on your code.

You shouldn't need administrative access to install NCL yourself. You can install NCL anywhere on your computer, including anywhere under your home directory.

You then just need to make sure that the NCARG_ROOT environment variable is pointing to the correct directory, and that $NCARG_ROOT/bin is on your search path.

--Mary

On May 12, 2012, at 11:01 PM, William Daniel Scheftic wrote:

> Hello,
>
> I have been having problems with a difficult to solve memory leak in
> one of my NCL (V5.1.1) programs. I have created a procedure called
> plotGrid that I send my data to and it uses the function
> gsn_csm_contour_map_ce to produce my output PDFs. I've checked my
> programs memory usage by inputting systemfunc calls to ps and it seems
> that some of the memory used by gsn_csm_contour_map_ce doesn't get
> released after deleting all internal procedure variables and exiting
> the plotGrid procedure. I'm not sure if there is an error in the way
> I am coding or if it is an error in gsn_csm_contour_map_ce. Perhaps
> this error is no longer present in the latest release however I don't
> have administrative access to install the latest version of NCL on the
> shared computer I'm using. Thanks for any help you can offer.
>
> Here are links to the files required to run my ncl program also the
> attached ndvi.rgb file should be placed in the colormaps directory.
>
> http://www.atmo.arizona.edu/~scheftic/MODIS_8km_Albers_Grid.nc
> http://www.atmo.arizona.edu/~scheftic/NDVI_Terra_8km_2004_001.nc
> http://www.atmo.arizona.edu/~scheftic/NDVI_Terra_8km_2004_017.nc
> http://www.atmo.arizona.edu/~scheftic/NDVI_Terra_8km_2004_033.nc
>
> Sincerely,
>
> Bill
> <modis_terra_output_8km_NDVI_images.ncl><ndvi.rgb>_______________________________________________
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Received on Mon May 14 09:26:51 2012