1 # Simulation Files for PWGLF/FORWARD Production
3 Christian Holm Christensen
8 The files in this archive represents a generic approach to running
9 AliROOT based simulations. The idea is that the user/committer only
10 specifies the run number for which an anchor run is needed, and
11 possibly an event generator.
15 The shell and ROOT scripts, JDLs, and so on are based on previous
16 "official" production files, but with some differences. The main
17 difference comes about because we want to _automatically_ configure
18 the simulation based on the relevant GRP OCDB entry as possible.
20 To that end, I created the ROOT script `GRP.C` which will query the
21 OCDB for GRP for a specified run. In this way, we can get the beam
22 species, energy, and center of mass energy simply by passing a run
23 number. We can also select a default event generator based on these
26 * For pp, the default generator is *Pythia6*
27 * For PbPb, the default generator is *Hijing*
28 * For pPb/Pbp, the default generator is *DpmJet*
30 However, since all steps need to have access to the GRP data, it means
31 that all steering scripts must load `GRP.C`, and hence we can at no
32 point use any of previously used scripts.
34 ## Setting up a simulation
36 The idea of these scripts are that we only change things in one
37 well-defined place, and that the scripts react to JDL parameters so
38 that we can re-use the scripts (and settings) for many kinds of
41 ### Configuring which detectors to include
43 Create a class called `DetCfg` deriving from `VirtualDetCfg` and
44 have it return true/false for the detectors you want to have on/off.
45 The class _must_ be declared in `DetConfig.C` and the function
46 `DetConfig()` _must_ set the global object pointer `detCfg` to point
47 to a new instance of the class `DetCfg`.
49 The script `DetConfig.C` is executed by both `Simulate.C` and
50 `Reconstruct.C` to get the list of enabled detectors. The script is
51 also executed by `AOD.C` and `QA.C` to ensure that we do not add tasks
52 for which we have no data because the needed detectors was turned
55 ### Configuring OCDB specific storage locations
57 Create a class called `OCDBCfg` deriving from `VirtualOCDBCfg` and put
58 it in the script `OCDBConfig.C`. The function `OCDBConfig` _must_ set
59 the global object pointer `ocdbCfg` to point to a new instance of the
62 The script `OCDBConfig.C` is executed by both `Simulate.C` and
63 `Reconstruct.C` to set the list of specific storage locations.
65 One can override `VirtualOCDBCfg::Prefix()` to return the default
66 prefix for specific storage locations. The member function
67 `VirtualOCDBCfg::Init(bool forSim)` _must_ declare all specific storage
68 locations. The parameter `forSim` is true when executed from
69 `Simulate.C` and false when executed from `Reconstruct.C`
71 ### Configuring the QA tasks
73 Create the class `QACfg` deriving from `VirtualQACfg`, and override
74 member functions from `VirtualQACfg` to enable/disable specific QA
75 tasks and options. Put the class `QACfg` in the script `QAConfig.C`.
76 The function `QAConfig` _must_ set the global object pointer
77 `qaCfg` to point to a new instance of the class `QACfg`.
79 The script `QAConfig.C` is executed by `QA.C` to set which tasks and
82 ### Configuring the AOD tasks
84 Create the class `AODCfg` deriving from `VirtualAODCfg`, and override
85 member functions from `VirtualAODCfg` to enable/disable specific AOD
86 tasks and options. Put the class `AODCfg` in the script `AODConfig.C`.
87 The function `AODConfig` _must_ set the global object pointer
88 `aodCfg` to point to a new instance of the class `AODCfg`.
90 The script `AODConfig.C` is executed by `AOD.C` to set which tasks and
96 * `run.sh`: main steering executable (same as
97 `/alice/bin/aliroot_new`)
98 * `AOD.C`: AOD Filter train set-up. Derived from `AODtrainsim.C` but
99 modified to automatically get GRP parameters from OCDB using the
100 script `GRP.C` and set-up the train accordingly. Also, selection of
101 which tasks to include is done through the script `AODConfig.C`.
102 That means this script should never be modified by the user.
103 * `AODConfig.C`: Read by `AOD.C` to configure which tasks to include
105 * `Check.C`: Perform ESD check. Derived from `CheckESD.C`.
106 * `Config.C`: Simulation configuration script. Uses `GRP.C` to
107 automatically load the proper parameters for the Anchor run.
108 * `DetConfig.C`: Configuration script that sets which detectors to
109 turn on. This is used by all passes to ensure consistency.
110 * `Final.jdl.in`: Skeleton for final merging JDL. This is used for
111 both QA and AOD filtering.
112 * `GRP.C`: Script that defines the global variable `grp` which is
113 filled with values from the appropriate OCDB GRP entry for the
114 selected run. This is used in `AOD.C`, `Config.C`, `QA.C`,
115 `Reconstruct.C`, and `Simulate.C`.
116 * `LHC10hPS.C`: Special Physics Selection set-up for LHC10h due to
117 missing ZDC information to the trigger. Not needed as far as I can
119 * `Merge.jdl.in`: Skeleton for intermediate merging JDL. This is used for
120 both QA and AOD filtering.
121 * `OCDBConfig.C`: Set-up specific storage locations for simulation
122 and reconstruction. It defines the global object ocdbCfg which is
123 used in the `Simulate.C` and `Reconstruct.C` scripts.
124 * `QA.C`: QA train set-up. Derived from `QAtrainsim.C` but
125 modified to automatically get GRP parameters from OCDB using the
126 script `GRP.C` and set-up the train accordingly. Also, selection of
127 which tasks to include is done through the script `QAConfig.C`.
128 That means this script should never be modified by the user.
129 * `QAConfig.C`: Read by `QA.C` to configure which tasks to include
131 * `Reconstruct.C`: Reconstruction steering script. Derived from
132 `rec.C` but modified to automatically get GRP parameters from OCDB
133 using the script `GRP.C` and set-up the job accordingly.
134 * `Run.jdl.in`: Skeleton for initial stage running.
135 * `simrun.sh`: Simulation shell script. Derived from basic `simrun.sh`
136 but adapted to the files here, allows passing the number of events
137 per job, pass the run number to relevant scripts, ignores
139 * `Simulate.C`: Simulation steering script. Derived from `sim.C` but
140 modified to automatically get GRP parameters from OCDB using the
141 script `GRP.C` and set-up the job accordingly.
142 * `Tag.C`: Tag ESD files.
143 * `merge.sh`: Shell script to steer merging jobs. Used by both
144 QA and AOD filtering. This is based on `/alice/bin/train_merge.sh`
145 but modified to call either the QA or AOD train merging.
147 The shell script `doit.sh` is the omnipotent script that steers all
148 parts of the simulation.
150 ## Usage of `doit.sh`
152 Usage: ./doit.sh [OPTIONS]
156 -t|--tag TAG Job tag (pp)
157 -i|--id NAME Name of production
158 -R|--run RUN_NO Run number
159 -c|--copy Copy files to AliEn
160 -n|--jobs JOBS Set number of jobs[**] (2)
161 -m|--events EVENTS Set events/job[**] (1)
162 -s|--stage STAGE Set the stage[***] (0)
163 -o|--output DIR Set base output directory[*] ($ALIEN_HOME/test)
164 -d|--data DIR Set data directory ($ALIEN_HOME/mc)
165 -b|--bin DIR Set base bin directory[*] ($ALIEN_HOME/bin)
166 -a|--aliroot RELEASE Set AliROOT release [*] (v5-04-Rev-20)
167 -r|--root RELEASE Set ROOT release [*] ()
168 -g|--geant RELEASE Set GEANT3 release [*] ()
170 [*] Only make sense with option -c
171 [**] Only make sense for stage 0
172 [***] If stage is set to 6, try to deduce the stage
173 automatically. If less than zero, do not do anything but copy
175 Note, if the ROOT and GEANT release is not specified, it will be
176 deduced from the AliROOT version.
178 * Make JDLs and copy files to `/alice/cern.ch/user/a/aliprod/PWGLFforwardMC`,
179 specifying that output should be based in `/alice/sim/2014`, and we
180 should use AliROOT v5-05-Rev-11, but not submitting any jobs
182 ./doit.sh -a v5-05-Rev-11 \
183 -d /alice/cern.ch/user/a/aliprod/PWGLFforwardMC \
188 * Submit 100 jobs each with 10 events for run 118506 with the same
189 parameters as above, using PhoJet
191 ./doit.sh -d /alice/cern.ch/user/a/aliprod/PWGLFforwardMC \
192 -i LHC14z9a -r 118506 -s 0 -n 100 -m 10 -g PhoJet
194 Output will end up in `/alice/sim/2014/LHC14z9a/118506`
196 * Submit merging jobs for the above production
198 ./doit.sh -d /alice/cern.ch/user/a/aliprod/PWGLFforwardMC \
199 -i LHC14z9a -r 118506 -s 6
201 Output will end up in `/alice/sim/2014/LHC14z9a/118506/`. Repeat
202 this until we hit the final merging.
206 The `Config.C` configuration script has been trimmed down
207 considerably. The script is now very generic since most settings are
208 derived from the GRP data. The only thing that remains to be selected
209 in this script is the event generator.
211 When selecting the event generator, a more versatile and configurable
212 approach has been taken. `Config.C` defines the class `Setup` with
213 the constructor `Setup::Setup(const char* genName)`. Here `genName`
214 is passed verbatim from the `Run.jdl` JDL file. The method
215 `Setup::MakeGenerator()` then internally has a switch on this string
216 to find the chosen event generator. If no suitable generator can be
217 found, the script will fail with a `Fatal` signal.
219 Generators are specified as
221 > _name_[_sub-type_[_sub-sub-type_]]
223 where _sub-type_ (and _sub-sub-type_) are optional. Currently defined
224 event generators are (case insensitive)
226 * `pythia` Pythia6 Min.Bias. Optional sub-types
227 * `perugia0` Perugia0 tune. Optional sub-sub-types
228 * `chadr` Heavy flavour charm w/hadronic decay signals added
229 * `bchadr` Heavy flavour beauty/charm w/hadronic decay signals added
230 * `cele` Heavy flavour charm signals added
231 * `bele` Heavy flavour beauty/charm signals added
232 * `jspi2e` J/Psi to electrons signals added
233 * `btojspi2e` Beauty to J/Psi to electrons signals added
234 * `D6T` Rick Field's CDF Tune D6T
235 * `atlas` Arthur Moraes' (new) ATLAS tune, possibly with
237 * `_flat` for flat multiplicity probability from 0 to 200
238 * `jets` Jets in central barrel
239 * `hijing` Hijing Min.Bias. Optional sub-types. For pPb and Pbp a
240 cocktail with slow neutrons is made
241 * `2000` No quenching and hard pT cut at 2.3GeV. Possible
243 * `hf` Random heavy flavour signal added (see for pythia
245 * `ampt` AMPT min bias. Possible sub types are
246 * `hf` Random heavy flavour signal added (see for pythia
249 * `phojet` Same as `dpmjet`
252 More generators can easily be added.
259 * _run number_: The run number
260 * _n jobs_: Number of sub-jobs to commit
261 * _n events_: Number of events per sub-job
262 * _tag_: The tag to put in produced files under (e.g., `LHC14z9a`)
266 * _run number_: The run number
267 * _stage_: Stage number (1-4)
268 * _tag_: The tag to put in produced files under (e.g., `LHC14z9a`)
269 * _what_: What to merge: either `AOD` or `QA`
273 * _run number_: The run number
274 * _stage_: Stage number (1-4)
275 * _tag_: The tag to put in produced files under (e.g., `LHC14z9a`)
276 * _what_: What to merge: either `AOD` or `QA`
278 ## JDL Skeleton Substitutions
280 * _@out@_: The base of the output directory e.g., `/alice/sim/2014/`
281 * _@data@_: The directory where scripts, etc. are stored e.g.,
282 `/alice/cern.sh/user/a/aliprod/PWGLFforwardMC`
283 * _@aliroot@_: AliROOT version to use e.g., `v5-04-Rev-20`
284 * _@root@_: ROOT version to use e.g., `v5-34-08-6`
285 * _@geant@_: GEANT3 version to use e.g., `v1-15a-1`
287 ## ROOT Script Prototypes
289 ### `AOD.C(UInt_t run, const char* xmlfile, Int_t stage)`
291 * _run_: The run number
292 * _xmlfile_: Not used, compatibility with `QA.C`
293 * _stage_: Running stage (0: production, otherwise merge)
295 ### `QA.C(UInt_t run, const char* xmlfile, Int_t stage)`
297 * _run_: The run number
298 * _xmlfile_: Current list of input files. Must not contain `Stage`
300 * _stage_: Running stage (0: production, otherwise merge)
302 ### `GRP.C(UInt_t run)`
304 * _run_: The run number
306 ### `Reconstruct.C(UInt_t run)`
308 * _run_: The run number
310 ### `Simulate.C(UInt_t run, Int_t nev)`
312 * _run_: The run number
313 * _nev_: Number of events per sub-job
315 ## Shell Script Arguments
319 All arguments are passed on to other script e.g., `simrun.sh`
323 * _--run_ *RUN*: The Run number
324 * _--event_ *INTEGER*: Number of events per sub-job
325 * _--process_ *LABEL*: The Event Generator to use. If not specified
326 or equal to `default` then select default EG based on collision
328 * _--field_ *VALUE*: Ignored - obtained from OCDB
329 * _--energy_ *VALUE*: Ignored - obtained from OCDB
330 * _--physicslist_ *VALUE*: Ignored
331 * _--bmin_ FERMI: Least imapact parameter
332 * _--bmax_ FERMI: Largest imapact parameter
333 * _--pthardbin_ *VALUE*: Ignored
334 * _--quench_ *VALUE*: Quenching type to use
336 * _--number-- *INTEGER*: Sub-job number
337 * _--qa__: Also run QA train
338 * _--aod_: Also run AOD train
342 * _which_: What to do merging of (either `QA` or `AOD`)
343 * _run_: The run number
344 * _dir_: Directory where intermediate data can be found
345 * _stage_: Stage to execute