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Hi Homer, Go no further! StdHep 4.x is incompatible with 3.x. We ran into this when we first adopted it. Single particles should not take an enormous amount of time for the regular calorimeter. My 400 MHz P2 PC will knock off a 5 GeV pion into the Small detector in maybe 2-3 seconds. Richard Homer Neal wrote: > Hi Richard, > > Many thanks for the offer of help. I'm transferring the generator > output files to my unix SLAC account (/a/juno/u18/ey/homer) so that they can be > tested. Their names are > -rw-r----- 1 neal ppg 298172 Feb 2 09:18 isa_susy.out > -rw-r----- 1 neal ppg 345788 Feb 2 09:26 isa_susy2.out > -rw-r----- 1 neal ppg 37436 Feb 2 12:52 isa_sugra.out > > I generated them using ij737. As an example, I used the following > to create the first file: > isajet <</EOF > ../isadecay.dat > susy.input > 10 > isa_susy.out > /EOF > > Where susy.input contains: > cat susy.input > SAMPLE SUSY JOB > 500.,100,1,10/ > SUPERSYM > PT > 50,100,50,100/ > JETTYPE1 > 'GLSS','SQUARKS'/ > JETTYPE2 > 'GLSS','SQUARKS'/ > GAUGINO > 60,1,40,40/ > SQUARK > 80.3,80.3,80.5,81.6,85,110/ > FORCE > 29,30,1,-1/ > FORCE > 21,29,1/ > FORCE > 22,29,2/ > FORCE > 23,29,3/ > FORCE > 24,29,4/ > FORCE > 25,29,5/ > FORCE > 26,29,6/ > END > STOP > > I'm in the process of producing some output from PYTHIA > to see if that works. By the way, I tried to build PYBMS > using the suggested pybms_57.tar file code. I quickly discovered > the AIX xlf is necessary. xlf is not on my OSF machine. > Is PYBMS available in standard fortran. > > By the way, I did try providing all the arguments for nld_bat > and I got the same results. > > The tar that I extracted the nld_ binaries from is: > lcd-working19990112-mask-binosf1.tar.gz and I'm > using the latest Small.ini and Large.ini detector definitions. > > I can put particles into Beam.ini and nld_bat/nld_win seem to > successfully simulate them. EXCEPT ... unless I change the material > of the calorimeter to air, anything other than muons seems to take > an enormous time to simulate. > -- Richard Dubois SLD, Stanford Linear Accelerator Center [log in to unmask] http://www.slac.stanford.edu/~richard/ 650-926-3824 650-926-2923 (FAX)