numactl -H reports the following node distances on kernel 2.6.27.3-perfmon #1 SMP Thu Oct 23 14:12:02 CEST 2008 x86_64 GNU/Linux node distances: node 0 1 2 3 0: 10 20 20 20 1: 20 10 20 20 2: 20 20 10 20 3: 20 20 20 10 Also: ~/B % cat /sys/devices/system/node/node0/distance 10 20 20 20 However, the actual distance from node 0 to 3 should be greater (e.g. 30) than the distance to nodes 1 and 2. In other words, the kernel thinks that the topology looks like the one on the left whereas, in reality, it looks like the one on the right (* represents a CPU node). *-----* *-----* |\ /| | | | X | | | |/ \| | | *-----* *-----* The topology configuration has also been experimentally confirmed. -- To unsubscribe from this list: send the line "unsubscribe linux-numa" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
