[WIP] change to cross nic=2 to allow for alternating ring algo and nccl==2.23.4 #48
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NCCL_CROSS_NIC=2nccl==2.19.4in ngc 24.01 tonccl==2.23.4in ngc 24.12QPS_PER_CONNECTION=1when within the same rail group as there is no hash collisions within the same rail groupmax BW with alternating ring is 390GByte/s without it is 370GByte/s according to Sylvain's GTC24 NCCL talk