ray/release/nightly_tests/placement_group_tests/cluster.py

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import time
from ray.cluster_utils import Cluster
cluster = Cluster()
cluster.add_node(num_cpus=16)
time.sleep(20)
print("Scaling up.")
cluster.add_node(num_cpus=16, num_gpus=1)
print("Scaled up. Waiting for 1000 seconds until done.")
time.sleep(1000)