Questions about rc_x
#10523
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using ucx_tls=rc_x, ucx will call the rc_rlx5 interface to create QPs. Is this method using XRC (XRC allows significant savings in the number of QPs required to establish all to all process connectivity in large clusters) mentioned in IBTA? |
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Answered by
brminich
Feb 27, 2025
Replies: 1 comment
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no, it is also RC as with rc_verbs, but accelerated (lower latency achieved by bypassing ib_verbs and driver) |
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Answer selected by
EmmaLee-c
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no, it is also RC as with rc_verbs, but accelerated (lower latency achieved by bypassing ib_verbs and driver)
Significant savings in the number of QPs (while maintaining similar to RC performance) can be achived with dc transport