Re: fatal:NclMalloc Failed

Hi Tong,
A Malloc error usually means that your machine has run out of memory.

Looking at the file you are trying to plot, the array size is rather big
(81MB) for plotting.

There are no coordinate variables (latitudes/longitude arrays) within
the .hdf file. I assume you are creating those yourself, or have them
from somewhere else. I also converted to float from short using
short2flt, as I am guessing you did.

My best guess is that your machine is running out of memory when trying
to plot the large array. Can you subset the data somehow, seeing if you
can get a smaller region to plot? Alternatively you can try running this
on a machine with more memory.

If these suggestions do not help please let us know..
Best regards,
Adam

On 04/13/2010 03:01 PM, Tong Qi wrote:
> Hello NCL-Talk,
>
> I am trying to plot the data field "Ice_Surface_Temperature_NP" from
> this hdfeos file:
> ftp://ftp.hdfgroup.uiuc.edu/pub/outgoing/veer/MAP_DATA/files/NSIDC/MODIS/MOD29E1D/MOD29E1D.A2009340.005.2009341094922.hdf
>
> However, when I run my script, I receive:
>
> fatal:NclMalloc Failed:[errno=12]
> Segmentation fault
>
> When I try to use "plot=gsn_csm_contour_map(wks,data,res)" I find that
> the error is generated on that line. Any help is greatly appreciated.
>
> Thanks,
> Tong
>
>
>
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-- 
__________________________________________________
Adam Phillips 
asphilli@ucar.edu
National Center for Atmospheric Research   tel: (303) 497-1726
Climate and Global Dynamics Division         fax: (303) 497-1333
P.O. Box 3000				
Boulder, CO 80307-3000    http://www.cgd.ucar.edu/cas/asphilli
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