Peter Cooper created a directory fn781f:/spool11/prod/work/pass/strip8b/ntu and the following README file.
09-Dec-1997 psc
This directory contains the tools to process ftuple files and some ntuple files
already produced from the present ftuples. The general tool for processing
ftuples is ftup_select. This Fortran program reads a list of ftuple files
from the command line, opens each file in turn and selects for output to
ntuple and/or ftuple files a selected set of reconstructions from the input
files. Selection by reconstruction id is possible from the command line. More
complicated selection criteria require you to edit and link a new version of
the ftup_select.F. A short script is provided for this (link_ftup_select).
The ntuple files here are for general use. Feel free to search and sort these
until you need larger samples and tigher criteria. Then see below for how to
make you own reconstruction selections from the ftuples.
*Usage:
ftup_select <-n ntup_file> <-f ftup_file>
<-l id lower limit> <-u id upper limit>
ftup_file(s)
*Examples:
This is the "ntup_make" script which produced the ntuple (*.ntu) files found
in this directory.
ftup_select -l 100 -u 103 -n d0.ntu ftup1/*/* >/dev/null
ftup_select -l 200 -u 201 -n d+.ntu ftup1/*/* >/dev/null
ftup_select -l 202 -u 205 -n dstar.ntu ftup0/*/* >/dev/null
ftup_select -l 300 -u 301 -n ds+.ntu ftup1/*/* >/dev/null
ftup_select -l 400 -u 401 -n lc+.ntu ftup2/*/* >/dev/null
ftup_select -l 600 -u 601 -n xc.ntu ftup2/*/* >/dev/null
ftup_select -l 1 -u 3 -n strange.ntu ftup4/*/* >/dev/null
Notes:
ftup_select -l 100 -u 103 -n d0.ntu ftup1/*/* >/dev/null
writes all reconstructions with id>=100 .and. id<=103 from the ftup1 files
to the ntuple d0.ntu.
ftup1, etc. are links in this directory to the direcotry which contains all
the ftup1 files. The shell construction ftup1/*/* produces a list of all
the files beneath the ftup1 directory.
The time to run this script on the 14.7M event sample of strip8b on fn78f
was: real 6:08.65 user 1:05.92 sys 48.84
dstar_select is a version of ftup_select which requires L/sigma>5. The source
for this version is in dstar_select.F
*Output streams, recdf tables, etc:
The recdf table for these data is included in this directory. The first five
bits of the "out" field determines how reconstructions are routed to ftuple
streams 0-5. When writting ntuples ftup_select assigns ntuple numbers to each
reconstruction [110-5] in the same way as was done by soap. e.g. mesons end
up in 111, baryons in 112, etc. The quick summary is:
stream name ntu_id file_link comments
0 default 110 ftup0/*/* all recon's not written elsewhere
1 meson 111 ftup1/*/* D0, D+, Ds+ and friends
2 baryon 112 ftup2/*/* Lc+, Xc+, Xc0, Oc0 and friends
3 exotic 113 ftup3/*/* u, penta-quark, etc.
4 strange 114 ftup4/*/* K0s, Lambda, anti-lambda, Phi, Psi
5 semilept 115 ftup5/*/* semi-leptonics with e+
*Making a user specicifed selections:
0. setup -d off781 ! to have $OFF781_INC/recon_ntuple.inc and CERNLIB
1. copy files from here to your directory.
ftup_select.F
link_ftup_select
2. edit your ftup_select.F - see dstar_select.F here as an example. All
ntuple variables have the same names in Fortran as they have in paw
(via: $OFF781_INC/recon_ntuple.inc)
3. link_ftup_select ! compile - repeat 2/3 until no errors
4. make a link to the ftup files you need (like done here). e.g.
ln -s -f /spool11/prod/work/pass/strip8b/ftp1/ ftup1
5. run ftup_select. id limits will still work; default is none. e.g.
ftup_select -n my.ntu ftup1/*/* ! make my selection from the meson ftuples
Each file opened is echoed with number of reconstructions read and written.
Read errors are noted. The file with the read error is closed and the next
file opened.
6. To check distributions for all ntuple variables and a few calculated variables
with some 'reasonable' cuts you may use sample kumac lambdac_gen.kumac
7. To make full printout for a few (5) events from ntuple starting from any
event (1) you may use command
nt/loop 112 prin_ntu.f(1) 5 1