LOTUS Hardware

LOTUS Hosts

LOTUS is a cluster of over 400 hosts and 7976 CPU cores. A host is an individual computer in the cluster with more than 1 processor. Each host belongs to a specific host group. The number of processors (CPUs or cores) per host is listed in Table 1 with the corresponding processor model and the size of the physical memory RAM per host.

To select a host with a specific processor model and memory, add the following option to-m <host-group-name> the commandbsub.

Table 1.  LOTUS  cluster summary: 7976 CPU cores

Host group name Number 
of hosts
Processor model CPUs 
per host 
RAM
westmere48G
    8 Intel Xeon X5690 “Westmere”
12   48 GB
ivybridge128G
193 
Intel Xeon E5-2650-v2 "Ivy Bridge"
16 128 GB
haswell256G
  12 Intel Xeon E5-2650-v3 "Haswell"
20 256 GB
broadwell256G
  56 Intel Xeon E5-2640-v4 "Broadwell"
20
256 GB
ivybridge512G   16 Intel Xeon E5-2650-v2 "Ivy Bridge" 16 512 GB
ivybridge2000G
   2 Intel Xeon E7-4860-v2 "Ivy Bridge"
48 2048 GB
skylake348G
128 Intel Xeon Gold-5118 "Skylake"
24 348 GB
skylake348G-rhel7   
   8 Intel Xeon Gold-5118 "Skylake"
24 348 GB
 




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