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2026-07-13 12:40:42 +08:00

141 lines
5.6 KiB
Python

# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import paddle
from paddle.device.cuda.memory_analyzer import MemoryAnalysisTool
@unittest.skipIf(
(not paddle.is_compiled_with_cuda()) or paddle.is_compiled_with_rocm(),
'should compile with cuda.',
)
class TestAllocatorVisitor(unittest.TestCase):
def setUp(self):
self.GB = 1000**3
self.MB = 1000**2
self.cmds = [
["Alloc", 1 * self.GB, "0x100000000"],
["Alloc", 2 * self.GB, "0x100000001"],
["Alloc", 1 * self.GB, "0x100000002"],
["Alloc", 2 * self.GB, "0x100000003"],
["Free", 1 * self.GB, "0x100000000"],
["Free", 2 * self.GB, "0x100000003"],
]
self.cmds2 = [
["Alloc", 1 * self.MB, "0x100000010"],
["Alloc", 2 * self.MB, "0x100000011"],
["Alloc", 1 * self.MB, "0x100000012"],
["Alloc", 2 * self.MB, "0x100000013"],
["Free", 1 * self.MB, "0x100000010"],
["Free", 2 * self.MB, "0x100000013"],
]
paddle.set_flags({'FLAGS_use_virtual_memory_auto_growth': True})
def allocate_cmds(self, cmds):
params = {}
for op, size, ptr in cmds:
paddle.device.synchronize()
paddle_reserved1 = paddle.device.cuda.memory_reserved() // self.MB
if op == "Alloc":
params[ptr] = paddle.randn(
[int(int(size) / 4)], dtype='float32'
)
if op == "Free" and ptr in params:
del params[ptr]
paddle.device.synchronize()
paddle_reserved2 = paddle.device.cuda.memory_reserved() // self.MB
paddle_allocated2 = paddle.device.cuda.memory_allocated() // self.MB
paddle_max_reserved = (
paddle.device.cuda.max_memory_reserved() // self.MB
)
paddle_max_allocated = (
paddle.device.cuda.max_memory_allocated() // self.MB
)
print(
f"reserved = {paddle_reserved2} allocated = {paddle_allocated2} auto growth = {paddle_reserved2 - paddle_reserved1} max_allocated = {paddle_max_allocated} max_reserved = {paddle_max_reserved}"
)
return params
def test_multi_scale_alloc_free(self):
params = self.allocate_cmds(self.cmds)
MemoryAnalysisTool.vmm_max_free_size()
def test_block_info(self):
paddle.device.cuda.memory_summary()
params = self.allocate_cmds(self.cmds)
x = MemoryAnalysisTool.vmm_free_block_info()
y = MemoryAnalysisTool.vmm_all_block_info()
self.assertEqual(x[0][0][0], 1000000000)
self.assertEqual(x[0][1][0], 2002049024)
self.assertEqual(len(y), 1) # 1 allocators
self.assertEqual(len(y[0]), 4) # 4 blocks
def test_pool_filter_block_info(self):
"""Test vmm_large_all_block_info and vmm_small_all_block_info."""
# Allocate in large pool (>= vmm_small_pool_size_in_mb)
params = self.allocate_cmds(self.cmds)
large_info = MemoryAnalysisTool.vmm_large_all_block_info()
small_info = MemoryAnalysisTool.vmm_small_all_block_info()
all_info = MemoryAnalysisTool.vmm_all_block_info()
# large_info should have blocks (our 1GB allocations go to large pool)
self.assertGreater(len(large_info), 0)
self.assertGreater(len(large_info[0]), 0)
# Total blocks from large + small should equal all
total_filtered = sum(len(g) for g in large_info) + sum(
len(g) for g in small_info
)
total_all = sum(len(g) for g in all_info)
self.assertEqual(total_filtered, total_all)
def test_memory_summary(self):
paddle.set_flags({'FLAGS_use_virtual_memory_auto_growth': True})
paddle.device.cuda.memory_summary()
params = self.allocate_cmds(self.cmds2)
# paddle.device.cuda.memory_summary()
def test_memory_record(self):
paddle.set_flags({'FLAGS_use_virtual_memory_auto_growth': True})
paddle.set_flags({'FLAGS_record_alloc_event': True})
params = self.allocate_cmds(self.cmds)
params2 = self.allocate_cmds(self.cmds2)
paddle.device.cuda.allocate_record_plot()
paddle.device.cuda.allocate_record_plot(save_path="ana.png")
paddle.device.cuda.allocate_record_table()
paddle.device.cuda.memory_summary()
def test_memory_record_with_guard(self):
paddle.set_flags({'FLAGS_use_virtual_memory_auto_growth': True})
for _ in range(2):
with paddle.device.cuda.allocate_record_guard(True):
params = self.allocate_cmds(self.cmds2)
paddle.set_flags({'FLAGS_record_alloc_event': True})
with paddle.device.cuda.allocate_record_guard(False):
params2 = self.allocate_cmds(self.cmds2)
paddle.device.cuda.allocate_record_plot()
paddle.device.cuda.allocate_record_plot(save_path="ana.png")
paddle.device.cuda.allocate_record_table()
paddle.device.cuda.memory_summary()
if __name__ == '__main__':
unittest.main()