[ncl-talk] systemfunc issue

[Rick Brownrigg]

Hi,

errno 12 is "Cannot allocate memory".  Line 4151of gsn_code.ncl is the
second of this block of code:

   cmdStr = "if [ -w " + res_dir + " ] ; then echo 1 ; else echo 0 ; fi"
    if (type.ne."x11" .and. systemfunc(cmdStr).ne.1) then
        print("gsn_open_wks: Error: directory '" + res_dir + "' does not
exist or lacks write permissions.");
        status_exit(1)
    end if

All this is doing is a testing to make sure the output directory exists and
is writeable.  Is your system really stressed or otherwise memory
constrained?


Running NCL interactively, can you do something like:

ncl 1>print(systemfunc("ls -l"))

and get the same error?

Not sure what to suggest here...
Rick


On Wed, Jun 1, 2016 at 1:04 PM, Amadou Coulibaly <mpapin24 at gmail.com> wrote:

> Hello NCL users,
>
> I am facing an issue about systemfunc. I have 4 years daily TRMM data to
> plot. I used NCO "ncrcat" to mergetime. But when I wanted to plot, I am
> getting the following errors:
>
> fatal:systemfunc: cannot create child process:[errno=12]
> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 4151 in
> file $NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl
>
> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 93 in
> file mon_precip_trmm.ncl
>
> This line 93 corresponds to: wks =
> gsn_open_wks("png","Mean_Monthly_Rainfall_TRMM")
>
> But if I used "x11" as plot type, it works, but not for "png" or "eps".
>
> How to 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) 812 965 3659 /(+223) 90 08 26 71 /(+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*
>
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> what we think of it; the tree is the real thing" : Abraham Lincoln*
>
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>
>
>
>
>
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