Fix type error in pipeline runner

Author: sawenzel

MC/bin/o2_dpg_workflow_runner.py

@@ -36,7 +36,7 @@
                                  formatter_class=argparse.ArgumentDefaultsHelpFormatter)
 
 parser.add_argument('-f','--workflowfile', help='Input workflow file name', required=True)
-parser.add_argument('-jmax','--maxjobs', help='Number of maximal parallel tasks.', default=100)
+parser.add_argument('-jmax','--maxjobs', type=int, help='Number of maximal parallel tasks.', default=100)
 parser.add_argument('-k','--keep-going', action='store_true', help='Keep executing the pipeline as far possibe (not stopping on first failure)')
 parser.add_argument('--dry-run', action='store_true', help='Show what you would do.')
 parser.add_argument('--visualize-workflow', action='store_true', help='Saves a graph visualization of workflow.')
@@ -1730,5 +1730,5 @@ def speedup_ROOT_Init():
         exit(code)
     actionlogger.info("Running in cgroup")
 
-executor=WorkflowExecutor(args.workflowfile,jmax=args.maxjobs,args=args)
+executor=WorkflowExecutor(args.workflowfile,jmax=int(args.maxjobs),args=args)
 exit (executor.execute())