hwloc

 hwloc-info
depth 0:	1 Machine (type #1)
 depth 1:	1 Socket (type #3)
  depth 2:	1 L3Cache (type #4)
   depth 3:	4 L2Cache (type #4)
    depth 4:	4 L1iCache (type #4)
     depth 5:	8 L1dCache (type #4)
      depth 6:	8 Core (type #5)
       depth 7:	8 PU (type #6)
Special depth -3:	4 Bridge (type #9)
Special depth -4:	4 PCI Device (type #10)
Special depth -5:	10 OS Device (type #11)