Implement batch construction for strings columns #17035
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ttnghia
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Signed-off-by: Nghia Truong <nghiat@nvidia.com>
ttnghia
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Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
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Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
…cuh` Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
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davidwendt
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Oct 11, 2024
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Does this supersede #16727? Can that one be closed? |
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
This reverts commit c981e99.
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There seems to be a failed test and I can't reproduce it locally. Convert into draft while investigating. |
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
This reverts commit 4190cfd.
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Found the cause of issue, which should be fixed by #17074. Now wait for it to be merged first. |
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
PointKernel
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Oct 16, 2024
davidwendt
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Oct 16, 2024
| } | ||
| }(); | ||
| auto chars_data = | ||
| make_chars_buffer(offsets_column->view(), bytes, begin, strings_count, stream, mr); |
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I wonder if this could replace gather_chars in
Out of scope for this PR I think. I can make a note to look into this in a follow on PR.
davidwendt
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Oct 16, 2024
Signed-off-by: Nghia Truong <nghiat@nvidia.com>
PointKernel
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Oct 16, 2024
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/merge |
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This implements batch construction of strings columns, allowing to create a large number of strings columns at once with minimal overhead of kernel launch and stream synchronization. There should be only one stream sync in the entire column construction process.
Benchmark: #17035 (comment)
Closes #16486.