Dear all,
I am new Xeon Phi user and we are budget limited to the Xeon Phi 7120P which is less expensive. We have a few Supermicro servers have 4 PCIe x16 slots and 2 PCIe x8 slots. I read the manual of the server and these PCIe slots are shared equally between the two CPU sockets. So, I am trying to installed 4 7120P to each of the nodes, and I can install 2 Mellanox ConnectX3 HCA to the 2 PCIe x8 slots. That means each CPU socket will be connected to 1x Infiniband HCA and 2x 7120P. But is this a supported configuration? I read about the MPSS manual and it reads each Xeon Phi should be connected to a separated HCA. There are total of 7 nodes in our small cluster.
The Xeon Phi will be used to run the Quantum Espresso package as described in this link, but the example seems configured with 2 Xeon Phi per node, and can I add more Phi to the node? Can I get any advantage by adding to 4 Xeon Phi per node?
https://software.intel.com/en-us/articles/explicit-offload-for-quantum-e...
Besides, is the Xeon Phi 7120P supported by MPSS 3.8 or later version? Any examples of using Mellanox OFED with Xeon Phi?
Thank you,
Rolly