163 lines
5.1 KiB
Python
163 lines
5.1 KiB
Python
import os
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import sys
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import time
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from pathlib import Path
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import pytest
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import requests
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import torch
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import torch.distributed as dist
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from sglang.test.ci.ci_register import register_amd_ci, register_cuda_ci
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from sglang.test.test_utils import run_distributed_test
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register_cuda_ci(est_time=30, suite="nightly-2-gpu", nightly=True)
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register_amd_ci(est_time=60, suite="nightly-amd", nightly=True)
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class TestDumperPureFunctions:
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def test_get_truncated_value(self):
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from sglang.srt.debug_utils.dumper import get_truncated_value
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assert get_truncated_value(None) is None
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assert get_truncated_value(42) == 42
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assert len(get_truncated_value((torch.randn(10), torch.randn(20)))) == 2
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assert get_truncated_value(torch.randn(10, 10)).shape == (10, 10)
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assert get_truncated_value(torch.randn(100, 100)).shape == (5, 5)
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def test_obj_to_dict(self):
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from sglang.srt.debug_utils.dumper import _obj_to_dict
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assert _obj_to_dict({"a": 1}) == {"a": 1}
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class Obj:
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x, y = 10, 20
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def method(self):
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pass
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result = _obj_to_dict(Obj())
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assert result["x"] == 10
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assert "method" not in result
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def test_get_tensor_info(self):
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from sglang.srt.debug_utils.dumper import get_tensor_info
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info = get_tensor_info(torch.randn(10, 10))
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for key in ["shape=", "dtype=", "min=", "max=", "mean="]:
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assert key in info
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assert "value=42" in get_tensor_info(42)
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assert "min=None" in get_tensor_info(torch.tensor([]))
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class TestDumperDistributed:
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def test_basic(self, tmp_path):
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run_distributed_test(self._test_basic_func, tmpdir=str(tmp_path))
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@staticmethod
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def _test_basic_func(rank, tmpdir):
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os.environ["SGLANG_DUMPER_DIR"] = tmpdir
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from sglang.srt.debug_utils.dumper import dumper
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tensor = torch.randn(10, 10, device=f"cuda:{rank}")
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dumper.on_forward_pass_start()
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dumper.dump("tensor_a", tensor, arg=100)
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dumper.on_forward_pass_start()
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dumper.set_ctx(ctx_arg=200)
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dumper.dump("tensor_b", tensor)
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dumper.set_ctx(ctx_arg=None)
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dumper.on_forward_pass_start()
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dumper.override_enable(False)
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dumper.dump("tensor_skip", tensor)
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dumper.override_enable(True)
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dumper.on_forward_pass_start()
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dumper.dump_dict("obj", {"a": torch.randn(3, device=f"cuda:{rank}"), "b": 42})
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dist.barrier()
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filenames = _get_filenames(tmpdir)
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_assert_files(
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filenames,
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exist=["tensor_a", "tensor_b", "arg=100", "ctx_arg=200", "obj_a", "obj_b"],
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not_exist=["tensor_skip"],
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)
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def test_http_enable(self):
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run_distributed_test(self._test_http_func)
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@staticmethod
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def _test_http_func(rank):
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os.environ["SGLANG_DUMPER_ENABLE"] = "0"
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from sglang.srt.debug_utils.dumper import dumper
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assert not dumper._enable
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dumper.on_forward_pass_start()
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for enable in [True, False]:
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dist.barrier()
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if rank == 0:
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time.sleep(0.1)
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requests.post(
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"http://localhost:40000/dumper", json={"enable": enable}
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).raise_for_status()
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dist.barrier()
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assert dumper._enable == enable
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def test_filter(self, tmp_path):
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run_distributed_test(self._test_filter_func, tmpdir=str(tmp_path))
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@staticmethod
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def _test_filter_func(rank, tmpdir):
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os.environ["SGLANG_DUMPER_DIR"] = tmpdir
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os.environ["SGLANG_DUMPER_FILTER"] = "^keep"
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from sglang.srt.debug_utils.dumper import dumper
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dumper.on_forward_pass_start()
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dumper.dump("keep_this", torch.randn(5, device=f"cuda:{rank}"))
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dumper.dump("skip_this", torch.randn(5, device=f"cuda:{rank}"))
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dumper.dump("not_keep_this", torch.randn(5, device=f"cuda:{rank}"))
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dist.barrier()
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filenames = _get_filenames(tmpdir)
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_assert_files(
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filenames,
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exist=["keep_this"],
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not_exist=["skip_this", "not_keep_this"],
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)
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def test_write_disabled(self, tmp_path):
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run_distributed_test(self._test_write_disabled_func, tmpdir=str(tmp_path))
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@staticmethod
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def _test_write_disabled_func(rank, tmpdir):
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os.environ["SGLANG_DUMPER_DIR"] = tmpdir
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os.environ["SGLANG_DUMPER_WRITE_FILE"] = "0"
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from sglang.srt.debug_utils.dumper import dumper
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dumper.on_forward_pass_start()
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dumper.dump("no_write", torch.randn(5, device=f"cuda:{rank}"))
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dist.barrier()
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assert len(_get_filenames(tmpdir)) == 0
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def _get_filenames(tmpdir):
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return {f.name for f in Path(tmpdir).glob("sglang_dump_*/*.pt")}
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def _assert_files(filenames, *, exist=(), not_exist=()):
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for p in exist:
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assert any(p in f for f in filenames), f"{p} not found in {filenames}"
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for p in not_exist:
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assert not any(
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p in f for f in filenames
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), f"{p} should not exist in {filenames}"
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if __name__ == "__main__":
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sys.exit(pytest.main([__file__]))
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