Branko Badrljica <[email protected]> posted [email protected], excerpted below, on Thu, 07 May 2009 03:21:21 +0200:
> Dual and quadcore like i7 or Phenom is simple SMP where all nodes see > memory through the same interface. > Modern multisocket i7-based or Opteron is NUMA... Exactly, at least on the AMD side, I'm not sure about Intel. Multiple sockets on AMD64 (which means Opteron 2xx old, 2xxx newer, for dual socket, 4xx or 4xxx for quad-plus socket), NUMA capable, since each socket has its own built-in memory manager on the CPU die, with the possibility to hang memory off of each socket. Single socket, non-NUMA, don't enable NUMA unless you want to try the kernel NUMA emulation stuff for some reason. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman
