Along with other software for LCD research, a common distribution of the SLIC simulator package is available for SLAC Unix users.
| Info | ||
|---|---|---|
| ||
Access to SLAC NFS can be requested from the Unix Administration List. (Of course, you must already |
Open a connection to a SLAC Unix machine.
| No Format |
|---|
ssh [YOURACCOUNT]@iris.slac.stanford.edu |
Replace YOURACCOUNT with your actual SLAC Unix account.
Now, switch to the bash shell.
| No Format |
|---|
bash |
You need to setup the project environment to access the common software
distribution.
| No Format |
|---|
source /nfs/slac/g/lcd/mc/prj/bin/prj.sh |
Now, you should be able to run slic from $PRJ_BIN.
| No Format |
|---|
slic [arguments] |
| Tip | ||
|---|---|---|
| ||
The SLIC command line interface maps directly to Geant4 macro commands. |
To see available command line options, invoke the help command.
| No Format |
|---|
slic --help |
There are a number of different ways to run SLIC, including purely
macro or command-line driven.
For instance, here is a command to load the SDJan03 test geometry
and start an interactive terminal.
| No Format |
|---|
slic -g $PRJ_DIST/slic/current/examples/sdjan03/SDJan03.lcdd -n |
| Tip | ||
|---|---|---|
| ||
The LCDD files for common detectors such as SiD are kept at /nfs/slac/g/lcd/mc/prj/data/detectors, |
Now, in order to have a work area for your SLIC usage, checkout the
package from CVS.
| No Format |
|---|
export CVSROOT=:pserver:anonymous@cvs.freehep.org:/cvs/lcd cvs co slic cd slic |
Within this directory, you will be able to write LCIO files.
This is an example of visualizing a single muon event in the SDJan03 test
detector using GPS. From your slic directory, execute the following
commands.
| No Format |
|---|
slic -g examples/sdjan03/SDJan03.lcdd -n Idle>/control/execute macros/vis_gl.mac Idle>/control/execute macros/gps.mac Idle>/run/beamOn |
You could also dump a heprep.
| No Format |
|---|
Idle>/control/execute macros/heprep2.mac |
Or you may want to check for overlaps in the detector.
| No Format |
|---|
Idle>/geometry/test/recursive_test |
A purely macro-driven job can be executed from the slic directory like so.
| No Format |
|---|
slic macros/sdjan03_dbg.mac |
You can dump this event using an LCIO utility.
| No Format |
|---|
lcio-dumpevent outfile.slcio 0 0 |
In general, a minimalist SLIC session will be started as follows.
| No Format |
|---|
slic -g /path/to/geometry/file -n |
The -n will start an interactive session.
Alternately, you may start up in interactive mode and manually input all required commands.
| No Format |
|---|
slic -n Idle>/lcdd/setURI examples/sdjan03/SDJan03.lcdd Idle>/run/initialize |
An input file in StdHep or LCIO format can be specified with the -i
option or using the /generator/filename command from the PreInit> prompt.
When you call /run/beamOn, the events from this file will
be used as input to the simulator.
| Tip | ||
|---|---|---|
| ||
Here is a set of commands that may be useful for batch submission.
|