parser.add_argument('--host',nargs='*',default=['localhost'],help="Server hostname(s). Corresponds to '--port' options.")
parser.add_argument('--port',nargs='*',default=[9000],help="Server port(s). Corresponds to '--host' options.")
parser.add_argument('--runs',type=int,default=int(os.environ.get('CHPC_RUNS',7)),help='Number of query runs per server. Defaults to CHPC_RUNS environment variable.')
parser.add_argument('--runs',type=int,default=int(os.environ.get('CHPC_RUNS',11)),help='Number of query runs per server. Defaults to CHPC_RUNS environment variable.')
parser.add_argument('--no-long',type=bool,default=True,help='Skip the tests tagged as long.')