Re: Trouble passing array to f90 subroutine using WRAPIT

I take back some of what I said. The problem seems to be dependent on the
variable type. I can pass 2-D integer arrays just fine, but I have trouble
with floats, which is what I would like to pass between NCL and my f90
subroutine.

On Mon, Aug 26, 2013 at 1:34 PM, David Rasmussen <drasmussen@ucdavis.edu>wrote:

> No errors now, but when I print elements of the array I just get 4
> question marks (i.e "????") (I am guessing one for each byte?)
>
> When I try and format the output, Fortran tells me that my format choice
> is invalid because the data is of type character....
>
> Line: 32 write(6,'(f6.3)') xtas(1,1)
>
> At line 32 of file writearr.f90 (unit = 6, file = 'stdout')
> Fortran runtime error: Expected REAL for item 2 in formatted transfer, got
> CHARACTER
> (f6.3)
>
> I am able to print results from passed 1-D arrays OK. For passing 2-D
> arrays, does anything else special need to happen besides swapping array
> dimensions in the stub file? Again, my subroutine is f90.
>
> Thanks!
>
>
> On Mon, Aug 26, 2013 at 11:07 AM, Dennis Shea <shea@ucar.edu> wrote:
>
>> Computer rule: Fastest varying dimension maps into fastest
>> varying dimension. NCL (row major like C) is 0 based and the
>> rightmost dimension varies fastest. Fortran is column major
>> and the leftmost dimension varies fastest.
>>
>> Dimension order and subscripting are different for different languages.
>>
>> NCL: x(NA,NB,NC) <===> x(NC,NC,NA) : fortran
>>
>> In computer memory, think of the arrays as a long linear list and the
>> elements are accessed via a particular language's conventions
>>
>> See: page 37: http://www.ncl.ucar.edu/**Document/Manuals/language_man.**
>> pdf <http://www.ncl.ucar.edu/Document/Manuals/language_man.pdf>
>>
>> ---
>> It should be:
>>
>>
>> C NCLFORTSTART
>> subroutine writearr(ntim,nmod,xtas)
>> integer ntim,nmod
>> real xtas(nmod,ntim)
>> C NCLEND
>>
>> Note:No data rearranging should be done.
>>
>>
>>
>> On 8/26/13 8:47 AM, David Rasmussen wrote:
>>
>>> Hi,
>>>
>>> I would like to write an array of data to a text file, similar to this
>>> request from a previous thread:
>>> http://www.ncl.ucar.edu/**Support/talk_archives/2012/**0230.html<http://www.ncl.ucar.edu/Support/talk_archives/2012/0230.html>
>>>
>>> I have chosen to use WRAPIT to write my data to disk.
>>>
>>> I am trying to pass an array to an f90 subroutine, but NCL/WRAPIT keeps
>>> telling me that my array is not dimensioned correctly.
>>>
>>> I have an array defined in the driving NCL script as:
>>>
>>> xtas(ntim,nmod), where ntim=34675, nmod=33
>>>
>>> I would like to pass this array to a f90 routine. When I try and do this,
>>> the routine expects xtas to be dimensioned xtas(nmod,ntim) which is NOT
>>> how
>>> it is defined in the driving NCL script...
>>>
>>> fatal:writearr: dimension size of dimension (1) of xtas must be equal to
>>> the value of ntim
>>> fatal:["Execute.c":8128]:**Execute: Error occurred at or near line 226
>>> in
>>> file extract_BCSD_lat_lon.ncl
>>>
>>> The call to the routine in the NCL script is:
>>> WRITEARRAY::writearr(ntim,**nmod,xtas)
>>>
>>> Immediately before calling the f90 routine, I do
>>> "printVarSummary(xtas)"...
>>>
>>> I get...
>>>
>>> Variable: xtas
>>> Type: float
>>> Total Size: 4577100 bytes
>>> 1144275 values
>>> Number of Dimensions: 2
>>> Dimensions and sizes: [34675] x [33]
>>> Coordinates:
>>> Number Of Attributes: 1
>>> _FillValue : -999.999
>>>
>>> The print summary for xtas is as expected...xtas(ntim,nmod)...
>>>
>>> my stub file is:
>>>
>>> C NCLFORTSTART
>>> subroutine writearr(ntim,nmod,xtas)
>>> integer ntim,nmod
>>> real xtas(ntim,nmod)
>>> C NCLEND
>>>
>>> my f90 routine is:
>>>
>>> subroutine writearr(ntim,nmod,xtas)
>>> integer ntim, nmod
>>> real xtas(ntim,nmod)
>>>
>>> print*, xtas
>>>
>>> return
>>> end subroutine writearr
>>>
>>> Both compile with no errors.
>>>
>>> Other info:
>>>
>>> WRAPIT Version: 120209
>>> OPERATING SYSTEM: Darwin
>>> FORTRAN COMPILER (f90c): gfortran
>>> FORTRAN COMPILER OPTIONS (fopts): -m64 -fPIC -v -c
>>> -fno-second-underscore
>>> gcc -m64 -c -fno-common -I/usr/local/ncl-6.1.2/include WRAPIT.c
>>> COMPILING writearr.f90
>>> gfortran -m64 -fPIC -v -c -fno-second-underscore writearr.f90
>>> Using built-in specs.
>>> COLLECT_GCC=gfortran
>>> COLLECT_LTO_WRAPPER=/usr/**local/gfortran/libexec/gcc/**
>>> x86_64-apple-darwin11/4.6.2/**lto-wrapper
>>> Target: x86_64-apple-darwin11
>>> Configured with: ../gcc-4.6.2-RC-20111019/**configure
>>> --prefix=/usr/local/gfortran
>>> --with-gmp=/Users/fx/devel/**gcc/deps-static/x86_64
>>> --enable-languages=c,c++,**fortran,objc,obj-c++
>>> --build=x86_64-apple-darwin11
>>> Thread model: posix
>>> gcc version 4.6.2 20111019 (prerelease) (GCC)
>>> COLLECT_GCC_OPTIONS='-mmacosx-**version-min=10.8.3' '-m64' '-fPIC' '-v'
>>> '-c'
>>> '-fno-second-underscore' '-mtune=core2'
>>> /usr/local/gfortran/libexec/**gcc/x86_64-apple-darwin11/4.6.**2/f951
>>> writearr.f90 -fPIC -quiet -dumpbase writearr.f90
>>> -mmacosx-version-min=10.8.3 -m64 -mtune=core2 -auxbase writearr -version
>>> -fPIC -fno-second-underscore -fintrinsic-modules-path
>>> /usr/local/gfortran/lib/gcc/**x86_64-apple-darwin11/4.6.2/**finclude -o
>>> /var/folders/fl/**p8bxmn6x0gb7vk2qlzv90bdh0000gn**/T//cc8VXUoN.s
>>> GNU Fortran (GCC) version 4.6.2 20111019 (prerelease)
>>> (x86_64-apple-darwin11)
>>> compiled by GNU C version 4.6.2 20111019 (prerelease), GMP version 5.0.2,
>>> MPFR version 3.0.1-p4, MPC version 0.9
>>> GGC heuristics: --param ggc-min-expand=100 --param
>>> ggc-min-heapsize=131072
>>> GNU Fortran (GCC) version 4.6.2 20111019 (prerelease)
>>> (x86_64-apple-darwin11)
>>> compiled by GNU C version 4.6.2 20111019 (prerelease), GMP version 5.0.2,
>>> MPFR version 3.0.1-p4, MPC version 0.9
>>> GGC heuristics: --param ggc-min-expand=100 --param
>>> ggc-min-heapsize=131072
>>> COLLECT_GCC_OPTIONS='-mmacosx-**version-min=10.8.3' '-m64' '-fPIC' '-v'
>>> '-c'
>>> '-fno-second-underscore' '-mtune=core2'
>>> as -arch x86_64 -force_cpusubtype_ALL -o writearr.o
>>> /var/folders/fl/**p8bxmn6x0gb7vk2qlzv90bdh0000gn**/T//cc8VXUoN.s
>>> COMPILER_PATH=/usr/local/**gfortran/libexec/gcc/x86_64-**
>>> apple-darwin11/4.6.2/:/usr/**local/gfortran/libexec/gcc/**
>>> x86_64-apple-darwin11/4.6.2/:/**usr/local/gfortran/libexec/**
>>> gcc/x86_64-apple-darwin11/:/**usr/local/gfortran/lib/gcc/**
>>> x86_64-apple-darwin11/4.6.2/:/**usr/local/gfortran/lib/gcc/**
>>> x86_64-apple-darwin11/
>>> LIBRARY_PATH=/usr/local/**gfortran/lib/gcc/x86_64-apple-**
>>> darwin11/4.6.2/:/usr/local/**gfortran/lib/gcc/x86_64-apple-**
>>> darwin11/4.6.2/../../../:/usr/**lib/
>>> COLLECT_GCC_OPTIONS='-mmacosx-**version-min=10.8.3' '-m64' '-fPIC' '-v'
>>> '-c'
>>> '-fno-second-underscore' '-mtune=core2'
>>> SHARED OBJECT NAME (SharedObj): writearr2.so
>>> LINKER SUFFIX (ld_suffix): WRAPIT.o writearr.o -L/usr/local/gfortran/lib/
>>> -o writearr2.so
>>>
>>> LINKING
>>> gcc -m64 -bundle -flat_namespace -undefined suppress WRAPIT.o writearr.o
>>> -L/usr/local/gfortran/lib/ -o writearr2.so -lgfortran
>>> END WRAPIT
>>>
>>> I must be missing something here. I am not trying to do anything
>>> complicated. Thanks in advance.
>>>
>>>
>>>
>>> ______________________________**_________________
>>> ncl-talk mailing list
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/**mailman/listinfo/ncl-talk<http://mailman.ucar.edu/mailman/listinfo/ncl-talk>
>>>
>>>
>

_______________________________________________
ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Mon Aug 26 12:55:59 2013