The run times have been revised; the run managers should especially note
the
random number FFREAD flag RNDM, which should be different for each
run(!!!).
I have started putting a few CELEG files into the directory
/home/esc/gsim/mc_inputfiles/longrun_a/...
This may not be the most economical method, since the GSIM output file
is only
65% bigger than the input CELEG file.
A possible alternative is for each institution to generate their own
CELEG file. I have enclosed
a sample input file ('ftn15') at the end of this message. Celeg reseeds
its random number
generator internally, so it's not necessary to change the seed by hand.
The pain of e.g., copying
13x50 Mbyte files per day over the network may be greater than just
running CELEG locally.
Let me know what you prefer.
The following summarizes the current proposal for the first long GSIM
run.
Proposal version 6
We have a distributed farm consisting of some fraction of time from the
following cpu's: (managers/contacts)
MIT - 10 DEC Alphas, 500 MHz (David Rowntree/Jianguo Zhao)
UVA - 13 Linux/Intel 300 MHz (Cole Smith)
FSU - 8 Linux/Intel, more to come (Larry Dennis)
OU - 1 Linux/Intel, (+Linux/Alpha's, others) (John O'Donnell/Allena
Opper)
ODU - 2 DEC Alphas, 500 MHz (Junho Yun/Andi Klein)
3 Linux/Intel 300 MHz
Calculate 3 types of events:
1) elastic scattering (10% of available farm)
2) CELEG with resonances+elastics (60% of available farm)
3) e-p-pi0 events from AO (30% of available farm)
1.645 GeV, 60% magnetic field
Plan to run for 3-4 weeks, re-evaluate as we go along.
Analyze the runs with the 'Dec97' reconstruction program at JLAB.
File sizes: whatever you get from 24 hours of running, at first.
E.g., Linux/Intel @ 300 MHz, expect 1.0 sec/event & 1.0 kbyte/event.
=> ~ 86 Mbytes, ~86,000 events
For DEC Alphas, expect ~0.20 sec/event, => ~ 430 Mbytes, ~430,000 events
(These numbers assume a 100% dedicated machine.)
In practice, plan to start with ~86,000 events for all machines, since
this
is already a 50 Mbyte file from CELEG and the MIT machines may not be
100%
dedicated. We can adjust these numbers with experience.
After we gain some experience, the runs could go longer; because of the
2
Gbyte file limit of unix, the DEC Alpha runs are limited to ~4.6 days.
(We may
eventually need a multiple file output option from GSIM, as the DAQ
has.)
The above numbers depend GREATLY on the FFREAD and command line
parameters,
and remain to be confirmed by practical experience with the farms....
FFREAD options to be used (note the random number must be different
for each run!)
AUTO 1
CUTS 5.e-3 5.e-3 5.e-3 5.e-3 5.e-3
CCCUTS 1.e-3 1.e-3 1.e-3 1.e-3 1.e-3
DCCUTS 1.e-4 1.e-4 1.e-4 1.e-4 1.e-4
ECCUTS 5.e-4 5.e-4 5.e-4 5.e-4 5.e-4
SCCUTS 1.e-4 1.e-4 1.e-4 1.e-4 1.e-4
MAGSCALE 0.5829 0.75
NOGEOM 'ST'
NOSEC 'OTHE'
RNDM 1492 1998
STOP
Typical startup script, with parameters (note -nomcdata is very
important!)
../bin/Linux/gsim \
-ffread longrun1.ffread \
-bosout longrun1.evt \
-nomcdata \
-mcin 2.4gev_p_tgt_1.evt \
-trig 100 \
>& longrun1.out &
Version of GSIM to be used: release-1-16.
Any comments are welcome.
CELEG input file ('ftn15'):
BEAM ELECTRON 0.00000 0.00000 1.64500 1.64500
TARGET PROTON 0.00000 0.00000 0.00000 0.00000
W RANGE 0.90000 2.30000 0.00000 0.00000
Q2 RANGE 0.10000 3.00000 0.00000 0.00000
X CUTS 0.00000 99.00000 0.00000 0.00000
Y CUTS 0.00000 99.00000 0.00000 0.00000
Q2 CUTS 0.00000 99.00000 0.00000 0.00000
W CUTS 0.00000 99.00000 0.00000 0.00000
NU CUTS 0.00000 99.00000 0.00000 0.00000
EP CUTS 0.00000 99.00000 0.00000 0.00000
THETAP CUTS 0.00000 180.00000 0.00000 0.00000
E PHI ANG YES 0.00000 360.00000 0.00000 0.00000
MULT RANGE 0.00000 99.00000 0.00000 0.00000
DECAY NO 0.00000 0.00000 0.00000 0.00000
EDIT NO 13.00000 0.00000 0.00000 0.00000
FERMI NO 1.00000 0.00000 0.00000 0.00000
EVENTS 86000.00000 0.00000 0.00000 0.00000
VERTEX NO 0.00000 0.00000 0.00000 0.00000
0.00000
ELASTIC YES 0.00000 0.00000 0.00000 0.00000
0.00000
DEEP IN NO 0.00000 0.00000 0.00000 0.00000
0.00000
DEL1232 YES 1.23200 449.20000 0.11500 1.50000
1.08000
DEL1620 YES 1.62000 35.50000 0.14000 0.50000
1.08000
DEL1700 YES 1.70000 30.40000 0.25000 1.50000
1.08000
DEL1900 YES 1.90000 13.80000 0.15000 0.50000
1.08000
DEL1905 YES 1.90500 13.80000 0.30000 2.50000
1.08000
DEL1910 YES 1.91000 13.80000 0.22000 0.50000
1.08000
DEL1920 YES 1.92000 12.10000 0.25000 1.50000
1.08000
DEL1930 YES 1.93000 12.10000 0.25000 0.50000
1.08000
DEL1950 YES 1.95000 21.70000 0.24000 3.50000
1.08000
N1440 YES 1.44000 11.40000 0.20000 0.50000
1.08000
N1520 YES 1.52000 99.90000 0.12500 1.50000
1.08000
N1535 YES 1.53500 17.80000 0.15000 0.50000
1.08000
N1650 YES 1.65000 8.00000 0.15000 0.50000
1.08000
N1675 YES 1.67500 7.00000 0.15500 2.50000
1.08000
N1680 YES 1.68000 63.00000 0.12500 2.50000
1.08000
N1700 YES 1.70000 7.00000 0.10000 1.50000
1.08000
N1710 YES 1.71000 7.00000 0.11000 0.50000
1.08000
N1720 YES 1.72000 7.00000 0.10000 1.50000
1.08000
LAM1405 YES 1.40500 0.00100 0.04000 0.50000
1.43800
LAM1520 YES 1.52000 42.60000 0.01600 1.50000
1.43800
LAM1600 YES 1.60000 19.60000 0.15000 0.50000
1.43800
LAM1670 YES 1.67000 14.20000 0.03500 0.50000
1.43800
LAM1690 YES 1.69000 7.00000 0.06000 1.50000
1.43800
LAM1800 YES 1.80000 9.90000 0.30000 0.50000
1.43800
LAM1820 YES 1.82000 9.30000 0.08000 2.50000
1.43800
LAM1830 YES 1.83000 9.40000 0.09500 2.50000
1.43800
LAM1890 YES 1.89000 7.50000 0.10000 1.50000
1.43800
LAM2110 YES 2.11000 8.53000 0.20000 2.50000
1.43800
SIG1385 YES 1.38500 0.00100 0.04000 1.50000
1.43800
SIG1660 YES 1.66000 14.00000 0.10000 0.50000
1.43800
SIG1670 YES 1.67000 14.00000 0.06000 1.50000
1.43800
SIG1750 YES 1.75000 12.50000 0.09000 0.50000
1.43800
SIG1775 YES 1.77500 10.90000 0.12000 2.50000
1.43800
SIG1915 YES 1.91500 7.10000 0.12000 2.50000
1.43800
SIG1940 YES 1.94000 7.10000 0.22000 1.50000
1.43800
SIG2030 YES 2.03000 7.10000 0.18000 3.50000
1.43800
USER NO 2.03000 7.10000 0.18000 3.50000
1.43800
PRESCALE YES
FLSEED YES
LIST NO
DATAOUT NO gg.lund
HISTOUT NO gg.rzdat
BOSOUT YES gg.bfp