wpan11nv edited a comment on pull request #5382:
URL: https://github.com/apache/incubator-tvm/pull/5382#issuecomment-620140371


   > Do you mean requiring the users to tag the iter_var or we do it in 
InferBound? If the former, maybe we can merge this PR first and then start an 
RFC for the API change. If the latter, can you point out where to tag the 
iter_var? I am not familiar with InferBound.
   
   OK. I do not have a good idea on this. Probably we could just use this 
convention. I think there is no issue for CUDA. For OpenCL, a warp or subgroup 
is not necessarily  dispatched along  threadidx.x FWIK. Probably we care less 
about OpenCL? 


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