def test_assign_two_workloads_empty_cpu_ip(self):
"""
Workload 0: 2 threads --> (p:0 c:0 t:0) (p:0 c:1 t:0)
Workload 1: 1 thread --> (p:1 c:0 t:0)
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w0 = Workload(uuid.uuid4(), 2, STATIC)
w1 = Workload(uuid.uuid4(), 1, STATIC)
allocator.assign_threads(w0)
allocator.assign_threads(w1)
self.assertEqual(3, len(cpu.get_claimed_threads()))
packages = cpu.get_packages()
# WORKLOAD 0
core00 = packages[0].get_cores()[0]
core01 = packages[0].get_cores()[1]
thread0 = core00.get_threads()[0]
self.assertEqual(0, thread0.get_id())
self.assertTrue(thread0.is_claimed())
thread1 = core01.get_threads()[0]
self.assertEqual(1, thread1.get_id())
self.assertTrue(thread1.is_claimed())
# WORKLOAD 1
core00 = packages[1].get_cores()[0]
thread4 = core00.get_threads()[0]
self.assertEqual(4, thread4.get_id())
self.assertTrue(thread4.is_claimed())
def test_shared_core_violation(self):
allocator = IntegerProgramCpuAllocator()
# Claim all thread but one
cpu = get_cpu()
w = get_test_workload(uuid.uuid4(), len(cpu.get_threads()) - 1, STATIC)
workloads = {w.get_id(): w}
request = AllocateThreadsRequest(cpu, w.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
log.info("{}".format(cpu))
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(0, len(violations))
# Assign another workload which will force core sharing
w = get_test_workload(uuid.uuid4(), 1, STATIC)
workloads[w.get_id()] = w
request = AllocateThreadsRequest(cpu, w.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
log.info("{}".format(cpu))
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(1, len(violations))
def test_one_cross_package_violation(self):
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 9, STATIC)
allocator.assign_threads(w)
violations = get_cross_package_violations(cpu)
self.assertEqual(1, len(violations))
def test_cache_ip(self):
"""
[add a=2, add b=2, remove b=2, add c=2, remove a=2, add d=2] should lead to the following cache entries:
(state=[], req=[2])
(state=[2], req=[2,2])
(state=[2,2], req=[2,0])
[cache hit]
[cache hit]
(state=[2,2], req=[2,2]) but different layout
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator()
workloads = {}
workload = get_test_workload("a", 2, STATIC)
workloads[workload.get_id()] = workload
request = AllocateThreadsRequest(cpu, workload.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(1, len(allocator._IntegerProgramCpuAllocator__cache))
workload = get_test_workload("b", 2, STATIC)
workloads[workload.get_id()] = workload
request = AllocateThreadsRequest(cpu, workload.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(2, len(allocator._IntegerProgramCpuAllocator__cache))
request = AllocateThreadsRequest(cpu, "b", workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.free_threads(request).get_cpu()
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
workloads.pop("b")
workload = get_test_workload("c", 2, STATIC)
workloads[workload.get_id()] = workload
request = AllocateThreadsRequest(cpu, workload.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
request = AllocateThreadsRequest(cpu, "a", workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.free_threads(request).get_cpu()
self.assertEqual(4, len(allocator._IntegerProgramCpuAllocator__cache))
workloads.pop("a")
workload = get_test_workload("d", 2, STATIC)
workloads[workload.get_id()] = workload
request = AllocateThreadsRequest(cpu, workload.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
allocator.assign_threads(request).get_cpu()
self.assertEqual(5, len(allocator._IntegerProgramCpuAllocator__cache))
def test_cache_ip(self):
"""
[add a=2, add b=2, remove b=2, add c=2, remove a=2, add d=2] should lead to the following cache entries:
(state=[], req=[2])
(state=[2], req=[2,2])
(state=[2,2], req=[2,0])
[cache hit]
[cache hit]
(state=[2,2], req=[2,2]) but different layout
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
allocator.assign_threads(Workload("a", 2, STATIC))
self.assertEqual(1, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.assign_threads(Workload("b", 2, STATIC))
self.assertEqual(2, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.free_threads("b")
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.assign_threads(Workload("c", 2, STATIC))
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.free_threads("a")
self.assertEqual(4, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.assign_threads(Workload("d", 2, STATIC))
self.assertEqual(5, len(allocator._IntegerProgramCpuAllocator__cache))
def test_filling_holes_ip(self):
"""
Initialize with fragmented placement, then fill the instance. Result should be
less fragmented, with the first workload completely filling a socket.
| a | | a | |
| | a | | a |
| ------------- |
| | a | | a |
| a | | a | |
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
# Initialize fragmented workload
wa = Workload(uuid.uuid4(), 8, STATIC)
p0 = cpu.get_packages()[0]
p0.get_cores()[0].get_threads()[0].claim(wa.get_id())
p0.get_cores()[1].get_threads()[1].claim(wa.get_id())
p0.get_cores()[2].get_threads()[0].claim(wa.get_id())
p0.get_cores()[3].get_threads()[1].claim(wa.get_id())
p1 = cpu.get_packages()[1]
p1.get_cores()[0].get_threads()[1].claim(wa.get_id())
p1.get_cores()[1].get_threads()[0].claim(wa.get_id())
p1.get_cores()[2].get_threads()[1].claim(wa.get_id())
p1.get_cores()[3].get_threads()[0].claim(wa.get_id())
self.assertEqual(8, len(cpu.get_empty_threads()))
# Fill the rest of the CPU
w0 = Workload(uuid.uuid4(), 2, STATIC)
w1 = Workload(uuid.uuid4(), 3, STATIC)
w2 = Workload(uuid.uuid4(), 1, STATIC)
w3 = Workload(uuid.uuid4(), 2, STATIC)
workloads = [wa, w0, w1, w2, w3]
for w in workloads:
allocator.assign_threads(w)
self.assertEqual(0, len(cpu.get_empty_threads()))
# first workload should be filling completely a socket to avoid cross-socket job layout
for package in cpu.get_packages():
if package.get_cores()[0].get_threads()[0].get_workload_id() != wa.get_id():
continue
ids = [t.get_workload_id() for core in package.get_cores() for t in core.get_threads()]
self.assertListEqual(ids, [wa.get_id()] * 8)
def test_one_cross_package_violation(self):
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator()
w = get_test_workload(uuid.uuid4(), 9, STATIC)
request = get_no_usage_threads_request(cpu, [w])
cpu = allocator.assign_threads(request).get_cpu()
violations = get_cross_package_violations(cpu)
self.assertEqual(1, len(violations))
def test_one_cross_package_violation(self):
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator()
w = get_test_workload(uuid.uuid4(), 9, STATIC)
request = AllocateThreadsRequest(cpu, w.get_id(), {w.get_id(): w}, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
violations = get_cross_package_violations(cpu)
self.assertEqual(1, len(violations))
def test_assign_two_threads_empty_cpu_ip(self):
"""
Workload 0: 2 threads --> (p:0 c:0 t:0) (p:0 c:1 t:0)
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 2, STATIC)
allocator.assign_threads(w)
self.assertEqual(2, len(cpu.get_claimed_threads()))
# Expected core and threads
core00 = cpu.get_packages()[0].get_cores()[0]
core01 = cpu.get_packages()[0].get_cores()[1]
thread0 = core00.get_threads()[0]
self.assertEqual(0, thread0.get_id())
self.assertTrue(thread0.is_claimed())
thread1 = core01.get_threads()[0]
self.assertEqual(1, thread1.get_id())
self.assertTrue(thread1.is_claimed())
def test_shared_core_violation(self):
allocator = IntegerProgramCpuAllocator()
# Claim all thread but one
cpu = get_cpu()
w_0 = get_test_workload(uuid.uuid4(), len(cpu.get_threads()) - 1, STATIC)
request = get_no_usage_threads_request(cpu, [w_0])
cpu = allocator.assign_threads(request).get_cpu()
log.info("{}".format(cpu))
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(0, len(violations))
# Assign another workload which will force core sharing
w_1 = get_test_workload(uuid.uuid4(), 1, STATIC)
request = get_no_usage_threads_request(cpu, [w_0, w_1])
cpu = allocator.assign_threads(request).get_cpu()
log.info("{}".format(cpu))
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(1, len(violations))
def test_assign_ten_threads_empty_cpu_ip(self):
"""
Workload 0: 10 threads --> (p:0 c:[0-7] t:[0-9])
| 1 | 1 | 1 | 1 |
| 1 | 1 | | |
| ------------- |
| 1 | 1 | 1 | 1 |
| | | | |
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 10, STATIC)
allocator.assign_threads(w)
self.assertEqual(10, len(cpu.get_claimed_threads()))
expected_thread_ids = [0, 1, 2, 3, 4, 5, 6, 7, 8, 12]
thread_ids = [thread.get_id() for thread in cpu.get_claimed_threads()]
thread_ids.sort()
self.assertEqual(expected_thread_ids, thread_ids)
def test_shared_core_violation(self):
cpu = get_cpu()
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(0, len(violations))
# Claim 1 thread on every core
dummy_workload_id = uuid.uuid4()
for p in cpu.get_packages():
for c in p.get_cores():
c.get_threads()[0].claim(dummy_workload_id)
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(0, len(violations))
# Assign another workload which will force core sharing
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 2, STATIC)
allocator.assign_threads(w)
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(2, len(violations))
def test_cache_ip(self):
"""
[add a=2, add b=2, remove b=2, add c=2, remove a=2, add d=2] should lead to the following cache entries:
(state=[], req=[2])
(state=[2], req=[2,2])
(state=[2,2], req=[2,0])
[cache hit]
[cache hit]
(state=[2,2], req=[2,2]) but different layout
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator()
w_a = get_test_workload("a", 2, STATIC)
w_b = get_test_workload("b", 2, STATIC)
w_c = get_test_workload("c", 2, STATIC)
w_d = get_test_workload("d", 2, STATIC)
workloads = [w_a]
request = get_no_usage_threads_request(cpu, workloads)
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(1, len(allocator._IntegerProgramCpuAllocator__cache))
workloads = [w_a, w_b]
request = get_no_usage_threads_request(cpu, workloads)
allocator.assign_threads(request).get_cpu()
self.assertEqual(2, len(allocator._IntegerProgramCpuAllocator__cache))
cpu = allocator.free_threads(request).get_cpu()
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
workloads = [w_a, w_c]
request = get_no_usage_threads_request(cpu, workloads)
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
workloads = [w_c, w_a]
request = get_no_usage_threads_request(cpu, workloads)
cpu = allocator.free_threads(request).get_cpu()
self.assertEqual(4, len(allocator._IntegerProgramCpuAllocator__cache))
workloads = [w_c, w_d]
request = get_no_usage_threads_request(cpu, workloads)
allocator.assign_threads(request).get_cpu()
self.assertEqual(5, len(allocator._IntegerProgramCpuAllocator__cache))