Enabling Connectionless DAPL UD in the Intel® MPI Library

What is DAPL UD?

Traditional InfiniBand* support involves MPI message transfer over the Reliable Connection (RC) protocol. While RC is long-standing and rich in functionality, it does have certain drawbacks: since it requires that each pair of processes setup a one-to-one connection at the start of the execution, memory consumption could (at the worst case) grow linearly as more MPI ranks are added and the number of pair connections grows.

  • 开发人员
  • Linux*
  • Microsoft Windows* (XP, Vista, 7)
  • 服务器
  • C/C++
  • Fortran
  • 中级
  • Intel® MPI Library
  • user datagrams
  • ud
  • dapl ud
  • IB
  • InfiniBand
  • scalability
  • 消息传递接口
  • 集群计算
  • 订阅 ud