dmlc--dgl
Hongzhi (Steve), Chen
98325b1097
Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>
119 行
3.2 KiB
Python
119 行
3.2 KiB
Python
import unittest
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import backend as F
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from dgl.cuda import nccl
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from dgl.partition import NDArrayPartition
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def gen_test_id():
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return "{:0256x}".format(78236728318467363)
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@unittest.skipIf(
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F._default_context_str == "cpu", reason="NCCL only runs on GPU."
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)
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def test_nccl_id():
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nccl_id = nccl.UniqueId()
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text = str(nccl_id)
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nccl_id2 = nccl.UniqueId(id_str=text)
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assert nccl_id == nccl_id2
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nccl_id2 = nccl.UniqueId(gen_test_id())
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assert nccl_id2 != nccl_id
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nccl_id3 = nccl.UniqueId(str(nccl_id2))
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assert nccl_id2 == nccl_id3
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@unittest.skipIf(
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F._default_context_str == "cpu", reason="NCCL only runs on GPU."
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)
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def test_nccl_sparse_push_single_remainder():
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nccl_id = nccl.UniqueId()
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comm = nccl.Communicator(1, 0, nccl_id)
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index = F.randint([10000], F.int32, F.ctx(), 0, 10000)
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value = F.uniform([10000, 100], F.float32, F.ctx(), -1.0, 1.0)
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part = NDArrayPartition(10000, 1, "remainder")
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ri, rv = comm.sparse_all_to_all_push(index, value, part)
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assert F.array_equal(ri, index)
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assert F.array_equal(rv, value)
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@unittest.skipIf(
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F._default_context_str == "cpu", reason="NCCL only runs on GPU."
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)
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def test_nccl_sparse_pull_single_remainder():
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nccl_id = nccl.UniqueId()
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comm = nccl.Communicator(1, 0, nccl_id)
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req_index = F.randint([10000], F.int64, F.ctx(), 0, 100000)
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value = F.uniform([100000, 100], F.float32, F.ctx(), -1.0, 1.0)
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part = NDArrayPartition(100000, 1, "remainder")
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rv = comm.sparse_all_to_all_pull(req_index, value, part)
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exp_rv = F.gather_row(value, req_index)
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assert F.array_equal(rv, exp_rv)
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@unittest.skipIf(
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F._default_context_str == "cpu", reason="NCCL only runs on GPU."
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)
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def test_nccl_sparse_push_single_range():
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nccl_id = nccl.UniqueId()
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comm = nccl.Communicator(1, 0, nccl_id)
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index = F.randint([10000], F.int32, F.ctx(), 0, 10000)
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value = F.uniform([10000, 100], F.float32, F.ctx(), -1.0, 1.0)
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part_ranges = F.copy_to(
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F.tensor([0, value.shape[0]], dtype=F.int64), F.ctx()
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)
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part = NDArrayPartition(10000, 1, "range", part_ranges=part_ranges)
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ri, rv = comm.sparse_all_to_all_push(index, value, part)
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assert F.array_equal(ri, index)
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assert F.array_equal(rv, value)
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@unittest.skipIf(
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F._default_context_str == "cpu", reason="NCCL only runs on GPU."
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)
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def test_nccl_sparse_pull_single_range():
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nccl_id = nccl.UniqueId()
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comm = nccl.Communicator(1, 0, nccl_id)
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req_index = F.randint([10000], F.int64, F.ctx(), 0, 100000)
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value = F.uniform([100000, 100], F.float32, F.ctx(), -1.0, 1.0)
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part_ranges = F.copy_to(
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F.tensor([0, value.shape[0]], dtype=F.int64), F.ctx()
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)
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part = NDArrayPartition(100000, 1, "range", part_ranges=part_ranges)
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rv = comm.sparse_all_to_all_pull(req_index, value, part)
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exp_rv = F.gather_row(value, req_index)
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assert F.array_equal(rv, exp_rv)
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@unittest.skipIf(
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F._default_context_str == "cpu", reason="NCCL only runs on GPU."
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)
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def test_nccl_support():
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# this is just a smoke test, as we don't have any other way to know
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# if NCCL support is compiled in right now.
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nccl.is_supported()
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if __name__ == "__main__":
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test_nccl_id()
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test_nccl_sparse_push_single()
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test_nccl_sparse_pull_single()
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