邻里集体 - 减少操作 [英] Neighborhood collectives-reduce operation

问题描述

我需要MPI中的allreduce（MPI_Ineighbor_allreduce）进行集体通信，遗憾的是它尚未包含在内。
显然，效率不高的解决方案是使用MPI_Neighbor_alltoall
来增加缓冲区大小，您有什么建议吗？
是否有计划在未来的版本中包含此项目？

谢谢 MPI_Neighbor_allreduce 。
如果你想要的话，请随时在 http://mpi-forum.org/

btw，你的意思是使用 MPI_Neighbor_allgather 而不是 MPI_Neighbor_alltoall code>为了实现邻居allreduce？$ / b $ b

I need the allreduce (MPI_Ineighbor_allreduce) for collective communication in MPI, unfortunately it is not included yet. The obvious, not so efficient solution, is to use MPI_Neighbor_alltoall at the expense of increasing buffer size, Do you have any suggestions? Is there any plan to include this in future releases?

Thanks

解决方案

there is no such thing as MPI_Neighbor_allreduce in the MPI standard. if you want it, feel free to ask for it at http://mpi-forum.org/

btw, did you mean to use MPI_Neighbor_allgather instead of MPI_Neighbor_alltoall in order to implement the neighbor allreduce ?

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