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from haizea.core.scheduler.policy import PolicyManager
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from haizea.core.scheduler.slottable import ResourceReservation
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from haizea.core.scheduler.mapper import GreedyMapper
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from haizea.pluggable.policies.host_selection import GreedyPolicy
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from sample_slottables import *
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from common import create_tmp_slottable
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class SimplePolicy(PolicyManager):
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def __init__(self, slottable, preemption):
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PolicyManager.__init__(self, None, None, None, None)
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self.preemption = preemption
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self.host_selection = GreedyPolicy(slottable)
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def get_lease_preemptability_score(self, preemptor, preemptee, time):
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if self.preemption:
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return 1
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else:
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return -1
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def accept_lease(self, lease):
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return True
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def mapping_assertions(slottable, mapper, start, end, requested_resources, strictend, mustmap,
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maxend = None, can_preempt = []):
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lease = create_ar_lease(lease_id = 100,
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submit_time = T1200,
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start = start,
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end = end,
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preemptible = False,
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requested_resources = requested_resources)
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mapping, actualend, preemptions = mapper.map(lease, requested_resources,
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start, end,
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strictend = strictend,
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allow_preemption = True)
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if mustmap:
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assert(mapping != None and actualend != None and preemptions != None)
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if strictend:
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assert(end == actualend)
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else:
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assert(actualend <= maxend)
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assert(set(preemptions).issubset(set(can_preempt)))
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else:
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assert(mapping == None and actualend == None and preemptions == None)
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return
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tmp_slottable = create_tmp_slottable(slottable)
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res = dict([(mapping[vnode],r) for vnode,r in requested_resources.items()])
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rr = ResourceReservation(lease, start, actualend, res)
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tmp_slottable.add_reservation(rr)
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if len(preemptions) > 0:
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passed, node, time, capacity = tmp_slottable.sanity_check()
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assert(not passed)
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remove = set()
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for rr in [x.value for x in tmp_slottable.reservations_by_start]:
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if rr.lease in preemptions:
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remove.add(rr)
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for rr in remove:
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tmp_slottable.remove_reservation(rr)
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passed, node, time, capacity = tmp_slottable.sanity_check()
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assert(passed)
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def test_mapping_nopreemption_strictend():
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slottable, leases = sample_slottable_2()
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FULL_NODE, HALF_NODE, QRTR_NODE, EMPT_NODE = create_capacities(slottable)
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policy = SimplePolicy(slottable, preemption = False)
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mapper = GreedyMapper(slottable, policy)
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mapping_assertions(slottable, mapper,
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start = T1300,
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end = T1345,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE},
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strictend = True,
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mustmap = True)
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mapping_assertions(slottable, mapper,
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start = T1300,
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end = T1330,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: HALF_NODE},
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strictend = True,
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mustmap = True)
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93
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mapping_assertions(slottable, mapper,
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start = T1300,
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end = T1315,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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strictend = True,
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mustmap = True)
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mapping_assertions(slottable, mapper,
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start = T1330,
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end = T1345,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE},
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strictend = True,
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mustmap = True)
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mapping_assertions(slottable, mapper,
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start = T1330,
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end = T1345,
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requested_resources = {1: HALF_NODE, 2: HALF_NODE, 3: HALF_NODE, 4: HALF_NODE},
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strictend = True,
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mustmap = True)
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mapping_assertions(slottable, mapper,
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start = T1300,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE},
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strictend = True,
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mustmap = True)
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mapping_assertions(slottable, mapper,
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start = T1300,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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strictend = True,
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mustmap = False)
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mapping_assertions(slottable, mapper,
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start = T1300,
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end = T1330,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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strictend = True,
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mustmap = False)
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mapping_assertions(slottable, mapper,
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start = T1330,
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end = T1345,
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requested_resources = {1: HALF_NODE, 2: HALF_NODE, 3: HALF_NODE, 4: HALF_NODE, 5: HALF_NODE},
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strictend = True,
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mustmap = False)
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def test_mapping_nopreemption_nostrictend():
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slottable, leases = sample_slottable_3()
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FULL_NODE, HALF_NODE, QRTR_NODE, EMPT_NODE = create_capacities(slottable)
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policy = SimplePolicy(slottable, preemption = False)
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mapper = GreedyMapper(slottable, policy)
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mapping_assertions(slottable, mapper,
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start = T1315,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: HALF_NODE},
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strictend = False,
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mustmap = True,
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maxend = T1400)
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mapping_assertions(slottable, mapper,
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start = T1315,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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strictend = False,
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mustmap = True,
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maxend = T1330)
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mapping_assertions(slottable, mapper,
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start = T1315,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: HALF_NODE},
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strictend = False,
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mustmap = True,
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maxend = T1345)
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mapping_assertions(slottable, mapper,
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start = T1315,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: HALF_NODE, 4: HALF_NODE, 5: HALF_NODE, 6: HALF_NODE},
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strictend = False,
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mustmap = True,
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maxend = T1330)
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mapping_assertions(slottable, mapper,
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start = T1330,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: HALF_NODE},
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strictend = False,
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mustmap = True,
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maxend = T1345)
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mapping_assertions(slottable, mapper,
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start = T1345,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: HALF_NODE},
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strictend = False,
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mustmap = True,
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maxend = T1400)
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196
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mapping_assertions(slottable, mapper,
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198
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start = T1330,
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199
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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201
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strictend = False,
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mustmap = False)
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203
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204
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mapping_assertions(slottable, mapper,
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205
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start = T1400,
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end = T1415,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: HALF_NODE},
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208
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strictend = False,
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mustmap = False)
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210
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211
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def test_mapping_preemption_strictend():
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212
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slottable, leases = sample_slottable_3()
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213
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FULL_NODE, HALF_NODE, QRTR_NODE, EMPT_NODE = create_capacities(slottable)
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policy = SimplePolicy(slottable, preemption = True)
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215
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mapper = GreedyMapper(slottable, policy)
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216
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217
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mapping_assertions(slottable, mapper,
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218
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start = T1315,
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219
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end = T1345,
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220
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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strictend = True,
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222
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mustmap = True,
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223
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can_preempt = [leases[1]])
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224
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225
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mapping_assertions(slottable, mapper,
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226
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start = T1330,
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227
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end = T1345,
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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229
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strictend = True,
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230
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mustmap = True,
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231
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can_preempt = [leases[1]])
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232
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233
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mapping_assertions(slottable, mapper,
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234
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start = T1345,
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235
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end = T1400,
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236
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE},
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237
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strictend = True,
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238
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mustmap = True,
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239
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can_preempt = [leases[0],leases[1]])
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240
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241
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mapping_assertions(slottable, mapper,
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242
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start = T1315,
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243
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end = T1415,
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244
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: FULL_NODE, 4: FULL_NODE},
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245
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strictend = True,
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246
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mustmap = True,
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247
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can_preempt = leases)
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248
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249
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mapping_assertions(slottable, mapper,
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250
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start = T1315,
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251
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end = T1415,
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252
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requested_resources = {1: FULL_NODE, 2: FULL_NODE, 3: HALF_NODE},
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253
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strictend = True,
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254
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mustmap = True,
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255
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can_preempt = leases)
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