	GPU0	GPU1	GPU2	GPU3	CPU Affinity
GPU0	 X 	PHB	SOC	SOC	0-9,20-29
GPU1	PHB	 X 	SOC	SOC	0-9,20-29
GPU2	SOC	SOC	 X 	PHB	10-19,30-39
GPU3	SOC	SOC	PHB	 X 	10-19,30-39

Legend:

  X    = Self
  SOC  = Connection traversing PCIe as well as the SMP link between CPU sockets(e.g. QPI)
  PHB  = Connection traversing PCIe as well as a PCIe Host Bridge (typically the CPU)
  PXB  = Connection traversing multiple PCIe switches (without traversing the PCIe Host Bridge)
  PIX  = Connection traversing a single PCIe switch
  NV#  = Connection traversing a bonded set of # NVLinks
