[Swift-devel] LQCD meeting at Fermi

[Yong Zhao]

It is case (i), they want to read some paramenter settings from db. But I
do not think the two cases are very different, we are to map something
from database into in-memory data structures.

Yong.

On Fri, 1 Jun 2007, Ben Clifford wrote:

>
>
> On Fri, 1 Jun 2007, Veronika Nefedova wrote:
>
> > - DB-mapper: users have an elaborate input data structures, keep it in the DB,
> > so it would be nice to have a mapper that would read the input from the DB.
> > This feature is in the works (?)
>
> (i) The *data* in a DB, or
>
> (ii) paths to datafiles in the DB with actual data
> stored in disk files?
>
> (i) is much harder than (ii)
>
> > - Dealing with absolute path:
> >  LQCD uses dcache, which requires copying to/from some absolute path.
>
> By this do you mean that their input/output files are stored in the unix
> filesystem on the submit node, but in some directory that is not the pwd,
> and that that directory causes files to be accessed from dcache?
>
> dcache has other access methods, such as gridftp (I think). Do you know if
> they use that? in some cases, but maybe not this case, staging from dcache
> ftp server to site workspace without going via submit node.
>
> --
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