[ncl-talk] Segmentation fault when reading variables from NC

[Dennis Shea]

Also, forgot to mention ...

Using named dimensions should only be done when reordering an array.
Nothing wrong with doing so but is is  less efficient than ..

lon2d = inp0->XLONG_M (0, :, :)

On Mon, Mar 23, 2015 at 8:11 AM, Dennis Shea <shea at ucar.edu> wrote:

> I don't understand why either.  6.1.2 is no longer available here so I can
> not test with 6.1.2
>
> When it does work ... what does printVarSummary(lon2d) indicate?
>
> On Mon, Mar 23, 2015 at 2:47 AM, ChenFeng <fengfengabc003 at 163.com> wrote:
>
>>  Hi ncl-users,
>>
>> I have encounted an error when reading a variable from an NC file.
>> the code is listed below:
>> ;************************************************
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>> ;************************************************
>> begin
>>   inp0 = addfile("/public/home/chenf/AHWRF/TEST/WPSwks.T02/geo_em.d01.nc
>> ","r")
>>   lon2d = inp0->XLONG_M (Time|0, south_north|:, west_east|:)
>>   printVarSummary(lon2d)
>> ;************************************************
>> end
>>
>> the error message is:
>>  Copyright (C) 1995-2013 - All Rights Reserved
>>  University Corporation for Atmospheric Research
>>  NCAR Command Language Version 6.1.2
>>  The use of this software is governed by a License Agreement.
>>  See http://www.ncl.ucar.edu/ for more details.
>> Segmentation fault (core dumped)
>>
>>
>> The strange thing is when i'm reading the variable without any dimention name cited, the error disappeared.
>> The code changes into :
>> ;************************************************
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>> ;************************************************
>> begin
>>   inp0 = addfile("/public/home/chenf/AHWRF/TEST/WPSwks.T02/geo_em.d01.nc
>> ","r")
>>   lon2d = inp0->XLONG_M
>>   printVarSummary(lon2d)
>> ;************************************************
>> end
>>
>> I don't understand why. It is very appreciate if anybody can tell me the
>> reason.
>> Thanks.
>>
>> Feng
>>
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>>
>
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