The MMA warp needs fence_view_async_tmem_load() before PV[kt>0] to ensure the rescaled O values are visible. NamedBarrier synchronizes warps but may not guarantee TMEM visibility without an explicit fence.
The MMA warp needs fence_view_async_tmem_load() before PV[kt>0] to ensure the rescaled O values are visible. NamedBarrier synchronizes warps but may not guarantee TMEM visibility without an explicit fence.