Is this a new feature, an improvement, or a change to existing functionality?

Improvement

How would you describe the priority of this feature request

Medium

Please provide a clear description of problem you would like to solve.

There are dependencies between st_distance kernels, as shown in the following diagram:

The current implementation of st_distance kernels are siloed and lackes reusing overlapping logics. A refactor should happen to facilitate these dependencies.

Second, several implementation in kernels are not load balanced if the input is skewed. This can lead to unwanted performance degradation. As experimented in #1011, it is possible to create a perfectly load balanced kernel for any input geometries. It should be adopted for other distance API too.

Describe any alternatives you have considered

No response

Additional context

No response

- [ ] https://github.com/rapidsai/cuspatial/issues/1060
- [ ] https://github.com/rapidsai/cuspatial/issues/1123