[Feature Request]: Argmax and argmin functions for tuples and arrays

[Iainmon]

Summary of Feature

Description: Add argmax and argmin functions for arrays and homogeneous tuples.

Is this issue currently blocking your progress? No. I have come up with a solution, but it is linear time in the length of array and only works for rank = 1 arrays. No solution for tuple.

[bradcray]

Are argmax/argmin like Chapel's maxloc/minloc reductions?

[Iainmon]

Yes, it appears they are. Before I close, is the status of their GPU compatibility known?

[jabraham17]

minloc and maxloc reductions are available on GPUs for arrays

[e-kayrakli]

See https://github.com/chapel-lang/chapel/issues/24932. I think minloc/maxloc reductions on GPUs are relatively small amount of effort and we can support them soon enough if that's needed.

In the meantime we have gpuMinLocReduce and gpuMaxLocReduce in the GPU module as placeholders.

[jabraham17]

I stand corrected. Disappointing 😢

[bradcray]

@Iainmon : Since this is covered by #24932, can we close this one? Or if not, update the title and description to be more about porting the reductions to GPUs?