Our GPU topology is shown as follows. It seems there are two groups in our GPU setup. GPU0-GPU1 are separated from GPU2-GPU7. Is it correct? What is the correct topology of 8 K80 GPUs? Thank you very much.
nvidia-smi topo -m
GPU0 GPU1 GPU2 GPU3 GPU4 GPU5 GPU6 GPU7 CPU Affinity GPU0 X PIX SOC SOC SOC SOC SOC SOC 0-7,16-23 GPU1 PIX X SOC SOC SOC SOC SOC SOC 0-7,16-23 GPU2 SOC SOC X PIX PHB PHB PHB PHB 8-15,24-31 GPU3 SOC SOC PIX X PHB PHB PHB PHB 8-15,24-31 GPU4 SOC SOC PHB PHB X PIX PXB PXB 8-15,24-31 GPU5 SOC SOC PHB PHB PIX X PXB PXB 8-15,24-31 GPU6 SOC SOC PHB PHB PXB PXB X PIX 8-15,24-31 GPU7 SOC SOC PHB PHB PXB PXB PIX X 8-15,24-31