Increased cpu value to 8 when creating pool

(cherry picked from commit 0921c71)

Author: jackal1-66

MC/bin/o2dpg_sim_workflow.py

@@ -765,7 +765,7 @@ def getDPL_global_options(bigshm=False, ccdbbackend=True):
    if GENERATOR=="hepmc" and tf > 1:
       sgngenneeds=signalneeds + ['sgngen_' + str(tf-1)] # we serialize event generation
    SGNGENtask=createTask(name='sgngen_'+str(tf), needs=sgngenneeds, tf=tf, cwd='tf'+str(tf), lab=["GEN"],
-                         cpu=1, mem=1000)
+                         cpu=8 if args.make_evtpool else 1, mem=1000)
 
    SGNGENtask['cmd']=''
    if GENERATOR=="hepmc":