Examples

Run 12 parallel pipelines, 100 events each, using the dvcsgen generator and its t-min cut:
```
mcdj -j 12 -n 100 -g ./gemc.xml -y ./recon.yml -- dvcsgen -t 0.1
```
2. Process a bunch of LUND files, 3 concurrently:
```
mcdj -j 3 ... -- lund1.txt lund2.txt lund3.txt lund4.txt  ...
```
3. Use GEMC's particle gun:
```
mcdj -- gemc -BEAM_P="e-, 6*GeV, 15*deg, 20*deg"
```
4. Run 100 pipelines, 10 concurrently:
```
mcdj -j 10 -J 10 ...
```
5. Run 100 pipelines in series:
```
mcdj -J 100 ...
```