Random Notes

Jump to bottom Edit New page

Benjamin Zaitlen edited this page Sep 12, 2019 · 4 revisions

Welcome to the ucx-py wiki!

Env Vars

UCX_MEMTYPE_CACHE

UCX Memory optimization known issues. UCX-PY regularly sets this to n

UCX_MEMTYPE_CACHE=n

UCX_RNDV_SCHEME

UCX_RNDV_SCHEME=put_zcopy

UCX_TLS (similified):

rc = ibv_post_send, ibv_post_recv, ibv_poll_cq
cuda_copy = cuMemHostRegister, cuMemcpyAsync
cuda_ipc = cuIpcCloseMemHandle , cuIpcOpenMemHandle, cuMemcpyAsync
sockcm = connection management over sockets
tcp = communication over TCP