TL/UCP: add cong. avoidant onesided alltoall #1107
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Can one of the admins verify this patch? |
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from WG comments:
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combined with #1096 |
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What
The current onesided alltoall algorithm in TL/UCP can suffer from endpoint congestion in particular situations (e.g., high PPN counts in jobs). This algorithm adds a congestion avoidant algorithm allowing users to supply bandwidth in MB/s and a percentage of bandwidth to use for a particular alltoall collective.