def test_create_bad_client_workers(self):
service_workers = [
ServiceWorker('10.0.0.1', 'v3-8', 'europe-west4-a'),
]
client_workers = [
ClientWorker('10.0.0.1', 'v3-8', 'europe-west4-a'),
ServiceWorker('10.0.0.1', 'v3-8', 'europe-west4-a'),
]
self.assertRaisesRegex(
ValueError,
'client_workers argument must be a list of ClientWorker', Cluster,
client_workers, service_workers)
def test_validate_bad_zone_cluster(self):
client_workers = [
ClientWorker('10.0.0.0', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.1', 'n1-standard-16', 'us-central1-b'),
]
service_workers = [
ServiceWorker('10.0.0.0', 'v3-8', 'europe-west4-a'),
ServiceWorker('10.0.0.1', 'v3-8', 'europe-west4-a'),
]
cluster = Cluster(client_workers, service_workers)
self.assertRaisesRegex(RuntimeError,
'All workers must be in the same zone',
cluster.validate)
def test_healthy_sea_service_cluster(self):
tpu_resp_map = {
'fake-tpu-{}'.format(ip): gen_fake_tpu_entry(
'v3-8', ['10.0.0.{}'.format(ip)],
'fake-tpu-{}'.format(ip),
'READY',
'pytorch-nightly',
health='HEALTHY') for ip in range(256)
}
noop_compute_service = build_mock_compute_service({}, {})
tpu_service = build_mock_tpu_service(tpu_resp_map)
self.mock_discovery.side_effect = build_mock_services_fn(
noop_compute_service, tpu_service)
tpus = list(tpu_resp_map.keys())
cr = ClusterResolver(tpus)
service_workers = cr.get_service_workers()
expected = [
ServiceWorker(
internal_ip='10.0.0.{}'.format(ip),
port='8470',
machine_type='v3-8',
zone='fake-zone',
sw_version='pytorch-nightly') for ip in range(256)
]
self.assertCountEqual(expected, service_workers)
def test_validate_diff_num_workers(self):
client_workers = [
ClientWorker('10.0.0.0', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.1', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.2', 'n1-standard-16', 'europe-west4-a'),
]
service_workers = [
ServiceWorker('10.0.0.0', 'v3-32', 'europe-west4-a'),
ServiceWorker('10.0.0.1', 'v3-32', 'europe-west4-a'),
ServiceWorker('10.0.0.2', 'v3-32', 'europe-west4-a'),
ServiceWorker('10.0.0.3', 'v3-32', 'europe-west4-a'),
]
cluster = Cluster(client_workers, service_workers)
self.assertRaisesRegex(
RuntimeError,
'The client_workers and service_workers must have a 1:1 mapping',
cluster.validate)
def test_validate_good_cluster(self):
client_workers = [
ClientWorker('10.0.0.0', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.1', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.2', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.3',
'n1-standard-16',
'europe-west4-a',
hostname='test'),
]
service_workers = [
ServiceWorker('10.0.0.0', 'v3-32', 'europe-west4-a'),
ServiceWorker('10.0.0.1', 'v3-32', 'europe-west4-a'),
ServiceWorker('10.0.0.2', 'v3-32', 'europe-west4-a'),
ServiceWorker('10.0.0.3', 'v3-32', 'europe-west4-a'),
]
cluster = Cluster(client_workers, service_workers)
cluster.validate() # Does not raise exception
def test_validate_machine_type_client_cluster(self):
client_workers = [
ClientWorker('10.0.0.0', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.1', 'n1-standard-8', 'europe-west4-a'),
]
service_workers = [
ServiceWorker('10.0.0.0', 'v3-8', 'europe-west4-a'),
ServiceWorker('10.0.0.1', 'v3-8', 'europe-west4-a'),
]
no_check_cluster = Cluster(client_workers,
service_workers,
check_client_machine_type=False)
no_check_cluster.validate() # Does not raise exception
check_cluster = Cluster(client_workers, service_workers)
self.assertRaisesRegex(
RuntimeError, 'All client_workers must have the same machine_type',
check_cluster.validate)
def test_healthy_cluster(self):
list_instances_map = {
'fake-ig': {
'kind':
'compute#instanceGroupsListInstances',
'items': [
gen_fake_ig_list_instances_entry('fake-ig-' + c, 'RUNNING')
for c in 'abcd'
],
},
}
instance_resp_map = {
'fake-ig-' + c:
gen_fake_instances_get_entry('fake-ig-' + c, 'n1-standard-16',
'10.0.0.' + ip, 'RUNNING')
for c, ip in zip('abcd', '0123')
}
compute_service = build_mock_compute_service(instance_resp_map,
list_instances_map)
tpu_resp_map = {
'fake-pod':
gen_fake_tpu_entry(
'v3-32', ['10.0.0.{}'.format(ip) for ip in range(4)],
'fake-pod',
'READY',
'pytorch-nightly',
health='HEALTHY'),
}
tpu_service = build_mock_tpu_service(tpu_resp_map)
self.mock_discovery.side_effect = build_mock_services_fn(
compute_service, tpu_service)
tpus = list(tpu_resp_map.keys())
cr = ClusterResolver(tpus)
cluster = cr.get_cluster()
expected_client_workers = [
ClientWorker(
internal_ip='10.0.0.' + ip,
machine_type='n1-standard-16',
zone='fake-zone',
hostname='fake-ig-' + c) for c, ip in zip('abcd', '0123')
]
expected_service_workers = [
ServiceWorker(
internal_ip='10.0.0.{}'.format(ip),
port='8470',
machine_type='v3-32',
zone='fake-zone',
sw_version='pytorch-nightly') for ip in range(4)
]
expected = Cluster(expected_client_workers, expected_service_workers)
self.assertEqual(expected, cluster)
def test_validate_diff_sw_versions(self):
client_workers = [
ClientWorker('10.0.0.0', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.1', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.2', 'n1-standard-16', 'europe-west4-a'),
ClientWorker('10.0.0.3', 'n1-standard-16', 'europe-west4-a'),
]
service_workers = [
ServiceWorker('10.0.0.0', '8470', 'v3-32', 'europe-west4-a',
'pytorch-0.1'),
ServiceWorker('10.0.0.1', '8470', 'v3-32', 'europe-west4-a',
'pytorch-0.2'),
ServiceWorker('10.0.0.2', '8470', 'v3-32', 'europe-west4-a',
'pytorch-0.1'),
ServiceWorker('10.0.0.3', '8470', 'v3-32', 'europe-west4-a',
'pytorch-0.2'),
]
cluster = Cluster(client_workers, service_workers)
self.assertRaisesRegex(
RuntimeError, 'All service workers must have the same sw_version.*',
cluster.validate)