Hi, I run the memory-access analysis on a machine with Intel Xeon E5 processor. (CentOS 7, kernel 3.1)
amplxe-cl -collect memory-access --target-pid 787 -knob analyze-mem-objects=true -knob mem-object-size-min-thres=16
I have two problems:
(1) The profiled results show DRAM Bandwidth per socket and CPU Time per socket. But there is no information on QPI-related information which is necessary to see the effects of NUMA memory accesses.
(2) The profiled results does not show any memory access information to the objects.
What can be the possible cause of this lack of information? Where should I start to tackle the problem?