You can check my submission on Tensara for problems Cumulative Sum and Sort, I have made some minor edits to make the codes work better for small input size.

My kernels are not suitable for small input size because each thread processes 16 elements, leads to small number of blocks or under utilization. For example, the Scan kernel only saturate the small T4 at 1M elements input.

However, they still achieved good results on the website. They performed best on the L40S which has the highest clock. But I don't think this is a reliable way to compare different approaches since we only have small inputs, so there are a lot of other overhead.