Sort the column data in a two-dimensional array

Accelerated Computing CUDA CUDA Programming and Performance
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I have some two-dimensional data (300 rows × 128k columns), and I need to sort each column. Is there an efficient method to do this？

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You could use cub. cub::DeviceSegmentedRadixSort — CUB 104.0 documentation

An alternative to the segmented sort would be to call a separate sorting kernel per row. You would need to Benchmark both versions to see which is faster

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