问题描述
我一直在尝试了解 OpenMPI(V2.0.2)中的分段环减少 .但是我没有弄清楚这种流水线环的减少，尤其是阶段如何流水线化. (即计算阶段1(b)似乎同时执行两个阶段，而不是流水线".)MPI专家能否提供分段环减少和背后管线细节的动机?
I have been trying to understand the Segemented Ring Allreduce in OpenMPI (V2.0.2). But I failed to figure out this pipelined ring allreduce, especially how the phases are pipelined. (i.e. COMPUTATION PHASE 1 (b) seems to perform the two phases concurrently instead of "pipelinely".) Could MPI experts provide the motivation behind this Segmented Ring Allreduce and details about the pipeline?
非常感谢，狮子座
推荐答案
我认为已在 https://github.com/open-mpi/ompi/issues/4067
关于Open MPI内部的非常具体的问题，最好直接向Open MPI邮件列表或 github存储库
very specific questions regarding the internals of Open MPI, are better asked directly to the Open MPI mailing list(s) or github repository
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