Re: fatal:NclMalloc Failed

Thanks for the help Adam/Dennis. I was just wondering how much memory you
are running on your local linux box? The machine I am using has 16 GB, so I
think the problem was somewhere in my script.

Also, I notice your script uses a CE projection. Would I be able to
successfully generate the plot with res@mpProjection = "LambertEqualArea" ?

Thanks,
-Tong

On Wed, Apr 14, 2010 at 12:30 PM, Dennis Shea <shea@ucar.edu> wrote:

> As Adam indicated you may be running out of memory.
>
> ===
> I did the following on a local linux box ...
>
>
> Try
>
> %> ncl_filedump MOD29E1D.A2009340.005.2009341094922.hdf | less
>
> then
>
> %> ncl_filedump MOD29E1D.A2009340.005.2009341094922.hdf.hdfeos | less
>
>
> From the .hdf ... no lat/lon on file ... just 'cartesian' distances
>
> short Ice_Surface_Temperature_NP ( XDim_MOD_Grid_Seaice_4km_North,
> YDim_MOD_Grid_Seaice_4km_North )
> long_name : Estimated sea ice surface temperature 4 km North Pole
> grid
> units : degree_Kelvin
> format : f4.1
> coordsys : cartesian
> valid_range : ( 22320, 31320 )
> _FillValue : 7
> missing_value : 0x00
> scale_factor : 0.01
> scale_factor_err : 0
> add_offset : 0
> add_offset_err : 0
> calibrated_nt : 23
> Key : 0.0=missing data, 1.0=no decision, 5.0=non-production mask,
> 7.0=tile fill, 8.0=no input tile expected, 25.0=land, 37.0=inland water,
> 50.0=cloud
> hdf_name : Ice_Surface_Temperature_NP
> ---
>
> hdfeos: .... NCL *creates* new latitude/longitude variables, that
> facilitate plotting & processing
>
> short Ice_Surface_Temperature_NP_MOD_Grid_Seaice_4km_North (
> XDim_MOD_Grid_Seaice_4km_North, YDim_MOD_Grid_Seaice_4km_North )
>
> coordinates : GridLat_MOD_Grid_Seaice_4km_North,
> GridLon_MOD_Grid_Seaice_4km_North
> hdfeos_name : Ice_Surface_Temperature_NP
> projection : Lambert Azimuthal Equal Area
> unsigned : True
>
> Note the "unsigned"
>
> Unfortunately, the *important* attributes: Key, scale_factor, add_offset,
> _FillValue, etc are not transferred.
>
> The LAT/LON generated are
>
> double GridLat_MOD_Grid_Seaice_4km_South ( YDim_MOD_Grid_Seaice_4km_South,
> XDim_MOD_Grid_Seaice_4km_South )
> projection : Lambert Azimuthal Equal Area
> corners : ( 1e+51, 1e+51, 1e+51, 1e+51 )
>
> There is no indication that values of 1e51 are _FillValue.
> Common sense but ....
>
> I created the attached ncl script and gif file.
> The plotting is 'slow' for this 4501x4501 grid
>
> Good luck
>
>
> 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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>
>
> --
> ======================================================
> Dennis J. Shea tel: 303-497-1361 |
> P.O. Box 3000 fax: 303-497-1333 |
> Climate Analysis Section |
> Climate & Global Dynamics Div. |
>
> National Center for Atmospheric Research |
> Boulder, CO 80307 |
> USA email: shea 'at' ucar.edu |
> ======================================================
>
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Received on Wed Apr 14 11:53:45 2010