Hi All, I am trying to benchmark and understand performance using Vtune memory bandwidth analysis when allocating memory in DRAM and MCRAM explicitly using both memkind and hbwmalloc interface (on a toy example). The KNL config I used is FLAT/Quadrant. I am just using a single core with 4 omp threads and I am not sure to understand the results I am getting from vtune. Who would feel kind enough and comfortable enough with Vtune to spend 15-20min with me maybe tomorrow ? Few questions: 1) Even though I allocate memory first in DRAM, then in MCDRAM (adding a barrier between the two), Vtune seems to indicate DRAM/MCDRAM memory bandwidth utilisation is overlapping as if it would read data from both MCDRAM/DRAM at the same time. Note that I make sure to explicitly initialise memory to force the allocation. 2) What's the difference between package and channel memory in this context. I would expect the channel to be the memory channel monitored. But then... if I am using a single core, why is the DRAM package memory bandwidth different from the channel one... Thanks for your help. Fabien