[Swift-devel] LQCD mapping

[Yong Zhao]

does create mean creating an empty file?

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?
>
> --
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