Dear Tim and Mikael,
cc: Stephane 

GRID directory of files for DBD studies was discussed at
the ILC software common task group meeting held yesterday.

In short word, the plan is to create following directory structure
on ILC VO grid file catalog to store files for DBD studies.
/grid/ilc/dbd/generated
/grid/ilc/dbd/ild
/grid/ilc/dbd/sid
and
/grid/ilc/dbd_log/generated
/grid/ilc/dbd_log/ild
/grid/ilc/dbd_log/sid

See details at
the http://ilcagenda.linearcollider.org/materialDisplay.py?contribId=1&materialId=slides&confId=5273

In addition, following two suggestion was made.
(1) Naming convention. of generator files (stdhep files).
Now, the format of a stdhep file is wNNNNNN.stdhep ( N is 5 to 6 digit number).
It was suggested to include process names, CM enegy, etc, for easy understanding.
One example is to follow a format now under consideration in ILD,
which is described in the attached PDF file.

If we apply this rule, an example of a stdhep file name would be
Gp01-01.E1000-wTF.Ptth-lnqq-hnobb.eL.pR.Ip106032.stdhep
where
p01-01    : physsim-01-01 generator ( in the case of whizard, w01-95 for example )
1000-wTF  : CM energy + beam condition (with traveling focus )
tth-lnqq-hnobb : e+e- -> tth, tt->lnqq, h->other than bbbar
eL : left handed electron
eR : right handed electron
p106032 : p stands for physsim, 106032 is the process ID

what do you think ?

(2) what meta information should be put into lcio/slcio and how ?
stdhep format can store only process ID.
Some other information such as cross section, beam energy, etc
may be useful if stored in lcio and if the information is common
between SiD and ILD, it would be further convenient.
What do you think ?

I'm please to know your comment on these issues and would like to
discuss with you at the generator meeting in Aug. 11.
http://ilcagenda.linearcollider.org/conferenceDisplay.py?confId=5266

with best regards
Akiya Miyamoto