COMPUTE NODE RESOURCE OVERVIEW
Compute Node Information
MIHIR is running on 2320 Intel Xeon Broadwell E5-2695 v4 2.1GHz 18C CPU on its login and compute nodes. It has 2 CPUs per node with a total of 36 cores per node.Each compute node contains 128GB DDR4 .
Accelerated Node
The system has 12 accelerator nodes powered with Intel KNL 7210 processors , 96 GB DDR4 per node with a total Peak Performance of 31.92 TFLOPS.
Interconnect
XC40 compute nodes are connected using Cray Aries Network On Chip.The four nodes in a blade communicates through the Aries Chip.
Sixteen blade in a chassis are connected through the Aries chip onto a backplane. Each Cabinet consists of three chassis and two cabinets forms a group. All six chassis in a group are connected in all-to-all manner using electrical cables with data transfer rate of 14Gbps. All four groups of the Cray system are connected using optical cables with a data transfer of 12.5 Gbps.
Operating System
The system runs Cray Linux Environment(CLE) which is Cray’s customised version of the SUSE Linux Enterprise Server 12.2
CLE consists of two components: CLE and Compute Node Linux (CNL). The service nodes, external login nodes, and post-processing nodes of Cray XC40 run a full-featured version of Linux.
Additional Nodes
There are 5 external nodes which are used for submitting job into the cluster.
There are 8 utility nodes which are used for pre/post processing of the code and visualization purpose .