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Fix test_split_tensor_along_last_dim to actually assert correctness #4710

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Merged
ericharper merged 5 commits into from
Jun 10, 2026
Merged

Fix test_split_tensor_along_last_dim to actually assert correctness #4710

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70ffd13
Fix test_split_tensor_along_last_dim to actually assert correctness
lichenlu May 9, 2026
cd7e9dd
Merge branch 'main' into fix/test-split-tensor-along-last-dim
lichenlu May 9, 2026
4d853a3
Merge branch 'main' into fix/test-split-tensor-along-last-dim
dimapihtar May 12, 2026
b389427
Fix test_split_tensor_along_last_dim to actually assert correctness
lichenlu May 9, 2026
624533c
Merge branch 'main' into fix/test-split-tensor-along-last-dim
dimapihtar Jun 9, 2026
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7 changes: 5 additions & 2 deletions tests/unit_tests/tensor_parallel/test_tensor_parallel_utils.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
# Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.

import torch

import megatron.core.parallel_state as ps
Expand All @@ -9,8 +11,9 @@

def test_split_tensor_along_last_dim():
input_tensor = torch.rand((3, 4))
torch.equal(input_tensor[0:2, 0:2], util.split_tensor_along_last_dim(input_tensor, 2)[0])
torch.equal(input_tensor[2:, 2:], util.split_tensor_along_last_dim(input_tensor, 2)[1])
chunks = util.split_tensor_along_last_dim(input_tensor, 2)
assert torch.equal(chunks[0], input_tensor[:, 0:2])
assert torch.equal(chunks[1], input_tensor[:, 2:4])


def test_split_tensor_into_1d_equal_chunks():
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