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Fix for the index-select cuda setup. (#1022)

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* Fix for index-select.

* Better fix + add some testing.
This commit is contained in:
Laurent Mazare
2023-10-03 10:21:46 +01:00
committed by GitHub
parent 7b06872f90
commit 043cc25766
2 changed files with 16 additions and 1 deletions
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15
candle-core/tests/tensor_tests.rs
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@ -653,6 +653,21 @@ fn index_select(device: &Device) -> Result<()> {
hs.to_vec2::<f32>()?,
&[[0.0, 1.0, 2.0], [6.0, 7.0, 8.0], [3.0, 4.0, 5.0]]
);
// Prior to https://github.com/huggingface/candle/pull/1022
// There would be a bug where the last values in the result tensor would be set to 0.
let ids = Tensor::new(&[0u32, 2u32, 1u32, 0u32, 2u32, 1u32], device)?;
let hs = t.index_select(&ids, 0)?;
assert_eq!(
hs.to_vec2::<f32>()?,
&[
[0.0, 1.0, 2.0],
[6.0, 7.0, 8.0],
[3.0, 4.0, 5.0],
[0.0, 1.0, 2.0],
[6.0, 7.0, 8.0],
[3.0, 4.0, 5.0],
]
);
Ok(())
}