[Swift-devel] Wishlist: array elements assignment

[Tiberiu Stef-Praun]

The syntactic solution is acceptable, but the workflow does not get
executed, probably because it does not find any specific output file
names that need to be generated.
Can I force it to execute the problemset function ?
I was thinking of adding a transformation at its end that would create
a dummy file, but I'm not sure that this would trigger the execution
of the for loop.

Tibi

------------ code ----------

file solution) batch_lin_solver (file input){
        app{
                solver @filename(input) stdout=@filename(solution);
        }
}

(file solutions[]) problemset (file inputfiles[]){
        // _input_ is the file item, _i_ is its index
        foreach file input,i in inputfiles {
                file
solution<regexp_mapper;source=@input,match="(.*)",transform="\1.out">;
                solution=batch_lin_solver(input);
                solutions[i]=solution;
        }
}

//file problems[]<filesys_mapper; suffix="*.gz">;
file problems[]<filesys_mapper; prefix="moral_hazard_4.31_1", suffix="*.gz">;
file results[];

results=problemset(problems);






On 3/16/07, Yong Zhao <yongzh at cs.uchicago.edu> wrote:
> a was mapped to concurrent mapper, but the assignment changes it to
> whatever is in x.
>
> On Fri, 16 Mar 2007, Mihael Hategan wrote:
>
> > On Fri, 2007-03-16 at 13:55 -0500, Yong Zhao wrote:
> > > That is the way to do it right now.
> >
> > Does it actually work?
> > Wouldn't a be mapped by a concurrent mapper?
> >
> > >
> > > On Fri, 16 Mar 2007, Mihael Hategan wrote:
> > >
> > > > On Fri, 2007-03-16 at 13:17 -0500, Yong Zhao wrote:
> > > > > Yeah, I actually thought about making the regexp_mapper to deal with an
> > > > > array of items.
> > > >
> > > > What would be the result of the following:
> > > > any a[];
> > > > foreach... {
> > > >   x <...>;
> > > >   x = ...;
> > > >   a[i] = x;
> > > > }
> > > >
> > > > ?
> > > >
> > > > >
> > > > > Yong.
> > > > >
> > > > > On Fri, 16 Mar 2007, Tiberiu Stef-Praun wrote:
> > > > >
> > > > > > -------- excerpts from the code ----
> > > > > > (file out) solver (file in){
> > > > > >     app{
> > > > > >         solve @filename(in) stdout=filename(out)
> > > > > >     }
> > > > > > }
> > > > > >
> > > > > >
> > > > > > (file solutions[]) problemset (file inputfiles[]){
> > > > > >         // _input_ is the file item, _i_ is its index
> > > > > >         foreach file input,i in inputfiles {
> > > > > >                 //FIXME: this one is an alternative that it would be
> > > > > > nice, because I could build the output filenames from input file names
> > > > > > on the fly
> > > > > >                 file
> > > > > > solutions[i]<regexp_mapper;source=@input,match=(.*),transform="\1.out">;
> > > > > >                 solutions[i]=solver(input);
> > > > > >         }
> > > > > > }
> > > > > >
> > > > > > file problems[]<filesys_mapper; prefix="X", suffix="*.gz">;
> > > > > >
> > > > > > //FIXME: alternative option for output file naming: declare them with
> > > > > > a regexp-like mapper from the input files:
> > > > > > file solutions[]<regexp_mapper;
> > > > > > source=@filenames(problems),match=(.*), transform="\1,out">
> > > > > >
> > > > > > solutions=problemset(problems);
> > > > > >
> > > > > > -------------------------
> > > > > >
> > > > > > I'm open for alternatives
> > > > > > I have N input files that I have to process, and generate N output files.
> > > > > > I have complete control over the naming of the physical input and output files
> > > > > > Currently, I was trying to do file  X.gz generates file X.gz.out
> > > > > > (hence the regexp mapper, as a means of doing string concatenation).
> > > > > >
> > > > > > See the FIXME comments for my thoughts
> > > > > >
> > > > > > --
> > > > > > Tiberiu (Tibi) Stef-Praun, PhD
> > > > > > Research Staff, Computation Institute
> > > > > > 5640 S. Ellis Ave, #405
> > > > > > University of Chicago
> > > > > > http://www-unix.mcs.anl.gov/~tiberius/
> > > > > > _______________________________________________
> > > > > > Swift-devel mailing list
> > > > > > Swift-devel at ci.uchicago.edu
> > > > > > http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
> > > > > >
> > > > > _______________________________________________
> > > > > Swift-devel mailing list
> > > > > Swift-devel at ci.uchicago.edu
> > > > > http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
> > > > >
> > > >
> > > >
> > >
> >
> >
>


-- 
Tiberiu (Tibi) Stef-Praun, PhD
Research Staff, Computation Institute
5640 S. Ellis Ave, #405
University of Chicago
http://www-unix.mcs.anl.gov/~tiberius/