[Swift-devel] LQCD mapping

[Yong Zhao]

I see, then maybe you should not use filesys_mapper, can you try
simple_mapper instead?

Yong.

On Tue, 1 May 2007, Ben Clifford wrote:

>
>
> On Tue, 1 May 2007, Yong Zhao wrote:
>
> > does create mean creating an empty file?
>
> it doesn't create any file - it creates mappings that this mapper appears
> to not make by default (though mihael suggests that might be a bug)
>
> so that if I refer to an array element  lattice[787979]  it is mapped to a
> (possibly non-existing) file called prefix+"787979"+suffix
>
> if that is then used as the output variable for a procedure, then yes the
> file gets created by the procedure. but not by the mapper.
>
> >
> > On Tue, 1 May 2007, Ben Clifford wrote:
> >
> > >
> > > yesterday evening I played some with Nika trying to get her LQCD workflow
> > > running some more.
> > >
> > > It involved one code change to swift:
> > >
> > > I put a 'create' option on the filesys_mapper so that one can do this:
> > >
> > >   file lattice[] <filesys_mapper;prefix="lattice.",create=true>;
> > >   foreach i in range {
> > >     int j=i-1;
> > >     lattice[i] = lqcd_exec(test_in,lattice[j]);
> > >   }
> > >
> > > where lattice.* files don't exist, so that lattice[5] will map to
> > > "lattice.5". With create=false (the default) then the mapper behaves as
> > > before, which seems to be essentially an input-only mode where it creates
> > > an array based on existing files.
> > >
> > > I think this is the mapping functionality that I want, but its not clear
> > > to me whether filesys_mapper is the place for it, whether one of the other
> > > mappers already does this, or if it should go in a different place
> > > (another mapper or a new mapper). comments?
> > >
> > > --
> > > _______________________________________________
> > > Swift-devel mailing list
> > > Swift-devel at ci.uchicago.edu
> > > http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
> > >
> >
> >
>