[FEA] BFloat16x2 Atomics

[HanGuo97]

Currently, CUTLASS only implements a specialization of atomic_add for half2, but not nv_bfloat162. This in turn limits BlockStripedReduce to specialize in half2 but not nv_bfloat162.

Is there any reason not to provide a specialization for nv_bfloat162? It looks like a very simple change, but maybe I'm missing something. Thanks in advance for the help!

[thakkarV]

we would welcome a PR if CUDA exposes an API for this that we have missed supporting in CUTLASS

[github-actions]

This issue has been labeled inactive-30d due to no recent activity in the past 30 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed. This issue will be labeled inactive-90d if there is no activity in the next 60 days.

[github-actions]

This issue has been labeled inactive-90d due to no recent activity in the past 90 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed.