Blocks are partitioned after linearization Linearized thread blocks are partitioned Thread indices within a warp are consecutive and increasing Warp 0 starts with Thread 0 -Partitioning scheme is consistent across devices Thus you can use this knowledge in control flow However,the exact size of warps may change from generation to generation DO NOT rely on any ordering within or between warps If there are any dependencies between threads,you must _syncthreads()to get correct results(more later). 电子科妓女学8 Blocks are partitioned after linearization – Linearized thread blocks are partitioned – Thread indices within a warp are consecutive and increasing – Warp 0 starts with Thread 0 – Partitioning scheme is consistent across devices – Thus you can use this knowledge in control flow – However, the exact size of warps may change from generation to generation – DO NOT rely on any ordering within or between warps – If there are any dependencies between threads, you must __syncthreads() to get correct results (more later)