Used setproctitle in the multiprocessing workers [skip hazardlib] [demos]
Used setproctitle in the multiprocessing workers [skip hazardlib] [demos]


Former-commit-id: 18f899ed3600c0306953e56774ec496bc44165e6
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine