[ncl-talk] Segmentation fault
Amadou Coulibaly
mpapin24 at gmail.com
Mon May 25 08:36:50 MDT 2015
Hi Karin,
Of course, I have comment out *wsMaximumSize : 500000000 inside my
~/.hluresfile, which I called "cool.hluresfile" and it's in my home
directory. But I till have the same error message. Please find attached my
.hluresfile.
Best
On 25 May 2015 at 07:51, Karin Meier-Fleischer <meier-fleischer at dkrz.de>
wrote:
> Please take a look at the following .hlures web page:
>
> http://www.ncl.ucar.edu/Document/Graphics/hlures.shtml
>
> Bye,
> Karin
>
>
> Am 25.05.2015 um 07:23 schrieb Amadou Coulibaly <mpapin24 at gmail.com>:
>
> Hi Dennis and Rick,
>
> I have been able to plot one my wavelet spectrum using 5 years of hourly
> data, instead of all the 30 years, which were bringing the following error
> message: Segmentation fault (core dumped).
>
> But I till have some warring and errors messages such as:
>
> warning:_NhlCreateSplineCoordApprox: Attempt to create spline
> approximation for X axis failed: consider adjusting trXTensionF value
> warning:IrTransInitialize: error creating spline approximation for
> trXCoordPoints; defaulting to linear
> warning:_NhlCreateSplineCoordApprox: Attempt to create spline
> approximation for X axis failed: consider adjusting trXTensionF value
> warning:IrTransInitialize: error creating spline approximation for
> trXCoordPoints; defaulting to linear
> warning:XyPlotSetValues:xyYStyle is NhlLOG:trYMinF can't be <= 0.0:Setting
> xyComputeYMin to True
> fatal:ContourPlotDraw: Workspace reallocation would exceed maximum size
> 100000000
> fatal:ContourPlotDraw: draw error
> fatal:ContourPlotDraw: draw error
> fatal:PlotManagerDraw: error in plot draw
> fatal:_NhlPlotManagerDraw: Draw error
>
> I saw somewhere that to solve the first fatal (fatal:ContourPlotDraw:
> Workspace reallocation would exceed maximum size 100000000), I must
> change that maximum size 100000000 to *wsMaximumSize : 500000000 in the
> file:.hluresfile and put it in my home directory. I don't understand how to
> put it in my home directory?
>
> How to solve the issues of those errors?
>
> Best
>
> On 23 May 2015 at 19:09, Dennis Shea <shea at ucar.edu> wrote:
>
>> [1] If your data has missing values, you can not use either specx_anal or
>> the wavelet tool.
>>
>> [2] http://www.ncl.ucar.edu/Document/Functions/Built-in/dtrend.shtml
>>
>> states: "Missing values (_FillValue) are not allowed."
>>
>> [3] If there are **isolated** missing values you could likely do a simple
>> linear interpolation
>> to fill them. However, **any** interpolation will affect the spectra.
>>
>> If you have many _FillValue .... I would not even try to fill them
>> in.
>> The resulting spectra will reflect the effects of the interpolation
>> as much as the 'rea;' data.
>>
>> ---
>> Punch line: I don't think you can get what you want ... given your data.
>>
>> --
>>
>> Your statement:
>>
>> "My script is from this link:
>> http://paos.colorado.edu/research/wavelets/
>>
>> There is no NCL script at that web site.
>>
>> In fact, NCL call the fortran code presented at the website.
>>
>> ---
>> The interactive code there is IDL ... not NCL
>>
>> Regards
>>
>>
>>
>> On Sat, May 23, 2015 at 9:54 AM, Amadou Coulibaly <mpapin24 at gmail.com>
>> wrote:
>>
>>> Hi Dennis,
>>>
>>> My script is from this link:
>>> http://paos.colorado.edu/research/wavelets/
>>>
>>> My Temp look like this:
>>>
>>> Variable: Temp
>>> Type: float
>>> Total Size: 1051968 bytes
>>> 262992 values
>>> Number of Dimensions: 1
>>> Dimensions and sizes: [time | 262992]
>>> Coordinates:
>>> time: [410227200..1356994800]
>>> Number Of Attributes: 7
>>> coordinates : lon lat
>>> grid_type : unstructured
>>> comment : Air temperature is the bulk temperature of the air, not
>>> the surf
>>> ace (skin) temperature.
>>> shortname : ta
>>> code : 11
>>> units : K
>>> _FillValue : 9.96921e+36
>>> (0) 299.15
>>> (1) 9.96921e+36
>>> (2) 9.96921e+36
>>> (3) 296.35
>>>
>>> It contains a lot of missing data. That's why I used the following
>>> command:
>>> ; Remove mean and linear trend (recommended, not required)
>>> ; Missing values are not allowed.
>>> ;************************************
>>> Temp = dtrend(Temp,False)
>>>
>>> After that I printed Temp, but look stange for me with negative values:
>>>
>>> Variable: Temp
>>> Type: float
>>> Total Size: 1051968 bytes
>>> 262992 values
>>> Number of Dimensions: 1
>>> Dimensions and sizes: [time | 262992]
>>> Coordinates:
>>> time: [410227200..1356994800]
>>> Number Of Attributes: 7
>>> coordinates : lon lat
>>> grid_type : unstructured
>>> comment : Air temperature is the bulk temperature of the air, not
>>> the surf
>>> ace (skin) temperature.
>>> shortname : ta
>>> code : 11
>>> units : K
>>> _FillValue : 9.96921e+36
>>> (0) -8.256236e+36
>>> (1) 1.713005e+36
>>> (2) 1.713035e+36
>>> (3) -8.256145e+36
>>>
>>> I think the problem is from that command trying to remove mean and
>>> linear trend. Because without that I can get the wavelet function (w), but
>>> it contains only zero as values.
>>>
>>> How to handle this issue?
>>>
>>> Best
>>>
>>>
>>> On 23 May 2015 at 14:17, Dennis Shea <shea at ucar.edu> wrote:
>>>
>>>> [1] I have no idea why the script should seg fault. Maybe your
>>>> parameter settings are not appropriate for the input data.
>>>>
>>>> [2] What does "Temp" look like? printVarSummary(Temp)
>>>>
>>>> [3] Are there missing values?
>>>>
>>>> [4] If you want the "power spectrum", why not look at
>>>>
>>>> http://www.ncl.ucar.edu/Document/Functions/Built-in/specx_anal.shtml
>>>> http://www.ncl.ucar.edu/Applications/spec.shtml
>>>>
>>>> Good luck
>>>>
>>>> On Sat, May 23, 2015 at 8:00 AM, Amadou Coulibaly <mpapin24 at gmail.com>
>>>> wrote:
>>>>
>>>>> Dear ncl users,
>>>>>
>>>>> When I tried ti run my script (wavelet1.ncl), I am getting a strange
>>>>> error which is:
>>>>> Segmentation fault (core dumped)
>>>>>
>>>>> I am using ncl.6.2.1 and my system is: Linux amadou-Satellite-C855
>>>>> 3.19.0-16-generic #16-Ubuntu SMP Thu Apr 30 16:09:58 UTC 2015 x86_64 x86_64
>>>>> x86_64 GNU/Linux
>>>>>
>>>>> My dataset contains hourly data (1983-2012) of wind(speed/direction),
>>>>> air_temperature, ... for 46 sites. I just wanted to plot the power spectrum
>>>>> of only one site and for the all 30 years. I think the error comes from
>>>>> line 45 when I tried to compute the wavelet function (w). Please find
>>>>> attached my script.
>>>>>
>>>>> How can I solve this issue?
>>>>>
>>>>>
>>>>> --
>>>>> * COULIBALY AMADOU *
>>>>> PhD Student on West African Climate System (WACS)
>>>>> FUTA - Federal University of Technology of Akure, Nigeria
>>>>>
>>>>> *Visiting Student - *
>>>>> *University of Cologne, Germany**Institute of Geophysics and
>>>>> Meteorology*
>>>>> Pohligstr. 3 / Office 3.102
>>>>> D-50969 Köln
>>>>>
>>>>> *Project*: WASCAL (West African Science Service Centre on Climate Change
>>>>> and Adapted Land Use)
>>>>> Phone:(+234) 810 795 2836 /(+223) 65 67 27 57 /(+226) 64 57 37 27 /+49
>>>>> 15218352574
>>>>>
>>>>> E-mail: mpapin24 at gmail.com / coulibalya68 at yahoo.com
>>>>>
>>>>> "*The time is always right to do right": Nelson Mandela*
>>>>>
>>>>> *"Character is like a tree and reputation like a shadow. The shadow
>>>>> is what we think of it; the tree is the real thing" : Abraham Lincoln*
>>>>>
>>>>> *"Do what you can, with what you have, where you are" Theodore
>>>>> Roosevelt*
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> List instructions, subscriber options, unsubscribe:
>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> * COULIBALY AMADOU *
>>> PhD Student on West African Climate System (WACS)
>>> FUTA - Federal University of Technology of Akure, Nigeria
>>>
>>> *Visiting Student - *
>>> *University of Cologne, Germany**Institute of Geophysics and
>>> Meteorology*
>>> Pohligstr. 3 / Office 3.102
>>> D-50969 Köln
>>>
>>> *Project*: WASCAL (West African Science Service Centre on Climate Change
>>> and Adapted Land Use)
>>> Phone:(+234) 810 795 2836 /(+223) 65 67 27 57 /(+226) 64 57 37 27 /+49
>>> 15218352574
>>>
>>> E-mail: mpapin24 at gmail.com / coulibalya68 at yahoo.com
>>>
>>> "*The time is always right to do right": Nelson Mandela*
>>>
>>> *"Character is like a tree and reputation like a shadow. The shadow is
>>> what we think of it; the tree is the real thing" : Abraham Lincoln*
>>>
>>> *"Do what you can, with what you have, where you are" Theodore Roosevelt*
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>
>
> --
> * COULIBALY AMADOU *
> PhD Student on West African Climate System (WACS)
> FUTA - Federal University of Technology of Akure, Nigeria
>
> *Visiting Student - *
> *University of Cologne, Germany**Institute of Geophysics and Meteorology*
> Pohligstr. 3 / Office 3.102
> D-50969 Köln
>
> *Project*: WASCAL (West African Science Service Centre on Climate Change
> and Adapted Land Use)
> Phone:(+234) 810 795 2836 /(+223) 65 67 27 57 /(+226) 64 57 37 27 /+49
> 15218352574
>
> E-mail: mpapin24 at gmail.com / coulibalya68 at yahoo.com
>
> "*The time is always right to do right": Nelson Mandela*
>
> *"Character is like a tree and reputation like a shadow. The shadow is
> what we think of it; the tree is the real thing" : Abraham Lincoln*
>
> *"Do what you can, with what you have, where you are" Theodore Roosevelt*
>
>
>
>
>
>
> <wavelet2.ncl>
>
> _______________________________________________
> ncl-talk mailing list
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>
--
* COULIBALY AMADOU *
PhD Student on West African Climate System (WACS)
FUTA - Federal University of Technology of Akure, Nigeria
*Visiting Student - *
*University of Cologne, Germany**Institute of Geophysics and Meteorology*
Pohligstr. 3 / Office 3.102
D-50969 Köln
*Project*: WASCAL (West African Science Service Centre on Climate Change
and Adapted Land Use)
Phone:(+234) 810 795 2836 /(+223) 65 67 27 57 /(+226) 64 57 37 27 /+49
15218352574
E-mail: mpapin24 at gmail.com / coulibalya68 at yahoo.com
"*The time is always right to do right": Nelson Mandela*
*"Character is like a tree and reputation like a shadow. The shadow is
what we think of it; the tree is the real thing" : Abraham Lincoln*
*"Do what you can, with what you have, where you are" Theodore Roosevelt*
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