[gradsusr] Mask/Scripting error

[Justin Hicks]

Jeff,

The seventh file exists; this is an issue that pertains to any combination
of seven masks. Also, I begin each new block of commands with 'reinit',
which should close any previously open mask files. If I run all 56 masks
(one at a time, each closing before the next mask is opened), some of the
masks still output data, and others just output that error statement.
That's why I don't believe it is a memory issue. Each mask file runs
perfectly fine when run in its own gradscript; I just get this error when
grouping them all into one script.

-Justin

On Thu, Jan 5, 2017 at 12:32 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:

> -Does the seventh file exist on your system?
> -Are you opening too many files? I don't see any 'close' statements in
> your script, so you may want to consider the ramifications of never closing
> files if you're opening a large number of them.
> -Are you running out of memory? Usually Grads just crashes entirely when
> there's a memory error, but perhaps it's not in this instance.
>
> Usually when it comes to debugging, the most comprehensive thing you can
> do is a line-by-line print statement to see what's going on in the script
> after each and every line. You can simplify by printing out only specific
> lines that you think are critical, then subdivide sections of code down to
> the source of the problem so that you don't have to literally issue a print
> statement after every line.
>
> Jeff Duda
>
> On Thu, Jan 5, 2017 at 10:19 AM, Justin Hicks <jhicks2014 at gmail.com>
> wrote:
>
>> GrADS users,
>>
>> I have come across a strange problem while running a gradscript. I am
>> using this script to output average monthly data of different regions to a
>> text file. Each block of commands contains a different mask, but uses the
>> same datafile. The first block of commands is shown below:
>>
>>  'reinit'
>> 'open /data2/control/Region00_WLD_mask_GLDAS.nc'
>> 'set t 1 756'
>> 'set dfile 1'
>> 'set lon -179.5 179.5'
>> 'set lat -89.5 89.5'
>> 'sdfopen /data2/control/GLDAS_NOAH10_M.020.ctl_1Deg_RainfallRateSfc.nc'
>> 'set dfile 2'
>> 'set lon -179.5 179.5'
>> 'set lat -89.5 89.5'
>> 'set time 00Z01JAN1948'
>> 'set dfile 1'
>>  nmonths=756
>>  i=1
>>  while (i<=nmonths)
>>  'set t 'i
>> 'q file 1'
>> region = sublin(result,2)
>> region = subwrd(region,2)
>> 'q file 2'
>> dataset = sublin(result,2)
>> dataset = subwrd(dataset,2)
>>  'q dims'
>>  rectime = sublin(result,5)
>>  recdate = subwrd(rectime,6)
>> 'd aave(maskout(rainfsfc.2*86400,lterp(mask.1(time=00Z01JAN1948
>> ),rainfsfc.2)),lon=-179.5,lon=179.5,lat=-89.5,lat=89.5)'
>>   say 't='i
>>  say result
>>  rainfsfc = sublin(result,1)
>>  rainfsfc = subwrd(rainfsfc,4)
>>  string = dataset' 'region' 'rectime' 'rainfsfc
>>  rc=write('GLDAS_MASK_DATA.txt' ,  string ,'append')
>>  i = i + 1
>>  endwhile
>>
>> I repeat these commands in the same script over and over, only changing
>> the second line (ex. the next one would read 'open
>> /data2/control/Region01_ART_mask_GLDAS.nc'). The data is output
>> perfectly when I have six masks in the script, but when I include the
>> seventh, the data output from the third mask / block of commands is
>> altered, and I get the following error:
>>
>> QUERY FILE Error:  file 2 not open
>> Data Request Error:  File number out of range
>>   Variable = rainfsfc.2
>> Operation Error:  Error from maskout function
>> Operation Error:  Error from aave function
>>   Error ocurred at column 1
>> DISPLAY error:  Invalid expression
>>   Expression = aave(maskout(rainfsfc.2*86400,
>> lterp(mask.1(time=00z01jan1948),rainfsfc.2)),lon=-179.5,lon=
>> 179.5,lat=-89.5,lat=89.5)
>> t=703
>> Data Request Error:  File number out of range
>>   Variable = rainfsfc.2
>> Operation Error:  Error from maskout function
>> Operation Error:  Error from aave function
>>   Error ocurred at column 1
>> DISPLAY error:  Invalid expression
>>   Expression = aave(maskout(rainfsfc.2*86400,
>> lterp(mask.1(time=00z01jan1948),rainfsfc.2)),lon=-179.5,lon=
>> 179.5,lat=-89.5,lat=89.5)
>>
>>
>> I don't believe the error lies within the third mask file itself because
>> it plots fine when it is run independently from the other masks. I also get
>> the same output issue when I run, for example, masks 50-56 (one or two of
>> these will come up with the error, but running masks 50-55 will yield no
>> problems).
>>
>> Any help would be appreciated to me solve this issue, as I'm baffled.
>>
>> -Justin
>>
>> --
>> *Justin Hicks*
>>
>> *UndergraduateAtmospheric Sciences Major*
>>
>> *GIS MinorUniversity of Maryland-College Park*
>>
>> _______________________________________________
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>> gradsusr at gradsusr.org
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>>
>>
>
>
> --
> Jeff Duda
> Post-doctoral research fellow
> University of Oklahoma School of Meteorology
>
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>
>


-- 
*Justin Hicks*

*UndergraduateAtmospheric Sciences Major*

*GIS MinorUniversity of Maryland-College Park*
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