Multi Core Machines in URCS


Introduction

There are some powerful servers with N cores (N>=4) in the department. Not all of them are in the NFS file system with the desktops, so you may need to do file transfers. However, you can do some privileged experiments on the machines such as replacing linux kernel or changing physical memory size. To prevent conflicts, it's better to check running tasks with their owner before launching yours.

For ordinary user-space experimentation on staff-administered machines, just run 'who' or 'uptime' to see if anybody else is around. If you discover that someone else is often on the machine, send a note (or better, drop by his or her office) to coordinate, so you don't mess up each other's performance experiments. If this sort of informal coordination doesn't seem to be working, talk to your advisor to have something more formal set up (this has been done a few times in the past - e.g. around crunch time for a looming conference deadline).

If you need a machine for a big/long-running user-space job, you may be best off reserving a node from the torque cluster. The specifications for these vary somewhat; you can specify constraints such as # of CPUs, memory, etc. when requesting a machine, e.g. if you need one of the more powerful machines or a lot of memory. All of the machines in the torque cluster are in the NFS file system.

Naming Scheme

The machines generally follow a naming scheme which reveals their computational capacity. They are generally named as follows:


node [NUMBER OF DIES] x [NUMBER OF CORES PER DIE] x [NUMBER OF HYPER-THREADS PER CORE] x [a-z]

Since the hyper-threading was mostly introduced for naming our Nehalem processors, it might not appear in the convention.

Active Machines

Node Name CPU(s) Details Memory NFS CS Login OS Primary Use Primary PI Purchased
node1x4c 1 Intel i7-3820 Ivy Bridge, 3.6Ghz 32GB N Y CentOS 7 GPU Computing - Jiebo Luo Lab jluo
node1x4x2d 1 Intel i7-4770 Haswell, 3.4Ghz 8GB Y Y Fedora 22 Transactional memory research
node1x6x2a 1 Intel i7-5930K Haswell-E, 3.5GHz 48GB N Y CentOS 7 GPU Computing - Jiebo Luo Lab jluo
node1x6x2b 1 Intel i7-5930K Haswell-E, 3.5GHz 48GB N Y CentOS 7 GPU Computing - Jiebo Luo Lab jluo
node1x8x1a 1 AMD Opteron 4284 Valencia (Bulldozer, c. 2011), 3.0GHz 8GB N Y Fedora 22
node2x4x2a 2 Intel Xeon E5-520 Nehalem, 2.27GHz, 4-Cores x 2-"Threads" 8GB N N Fedora 28 Compiler research cding 10/2010
node2x6x2b 2 Intel Xeon E5-2620 8GB N Y Fedora 20, custom kernel ssd research scott
node2x6x2i 2 Intel Xeon L5640 Westmere-EP, 2.26GHz, 2-sockets, 6-cores per socket, 2 x hyperthreads per core (SMT) 12GB N Y Fedora 22?, unstable kernel Operating system research
node2x10a 2 Intel Xeon E5-2660 Ivy Bridge-EP, 2.2GHz, 2-sockets, 10-cores per socket x 2-hyperthreads per core (SMT) 16GB N N Fedora 26 Operating system research sandhya
node2x12x1a 2 AMD Opteron 6172 Opteron, 2.1GHz, 12-Cores x 1-"Thread" 16GB N Y Fedora 19, unstable kernel (3.11.10-200.fc19.x86_64) Operating system research
node2x18a 2 Intel Xeon E5-2699v3 Haswell, 2.30GHz, 18-core x 2-"Threads" 198GB Y Y Fedora 20 Transactional memory research (more information)
node4x10a 4 Intel Xeon E7-4820v3 Haswell, 1.90GHz, 10-core x 2-"Threads" 256GB N Y Fedora 19 (modified kernel) Sharanyan's research(?) sandhya
node-ibm-822 2 IBM S822L Power8 4.1GHz, 10-core x 8-"Thread" 64GB Y Y Ubuntu 15.04 Compiler research
ib-node0[1-6] 2 Intel Xeon E5-2630v3

2.40Ghz 8-core x 2-"Threads"

32GB N Y Fedora 22 Infiniband cluster scott
node2x10b N N Ubuntu GPU computing No staff access cxu22
coleman Intel Core i7-4xxx - Dell Precision T1700 Haswell, 4 cores x 2 threads 16 GB N N Tri-boot: 1) FreeBSD (version?); 2) Ubuntu (version?); 3) Fedora 22 SVA research + more criswell
zimmer Intel Core i7-6xxx - Dell Precision 3420 Skylake, 4 cores x 2 threads 16 GB N N FreeBSD (version?) SVA research criswell
marquez Intel Core i7-7700 - Dell Precision 3620 Kaby Lake, 4 cores x 2 threads, 3.6 GHz 16 GB N N Dual-boot: 1) FreeBSD (version?); 2) Windows 10 SVA research criswell
glass Intel Core i7-7700 - Dell Precision 3620 Kaby Lake, 4 cores x 2 threads, 3.6 GHz 16 GB N N Dual-boot: 1) FreeBSD (version?); 2) Windows 10 SVA research criswell
janacek Intel Core i7-7700 - Dell Precision 3620 Kaby Lake, 4 cores x 2 threads, 3.6 GHz 16 GB N N Dual-boot: 1) FreeBSD (version?); 2) Windows 10 SVA research criswell
astor Intel Core i7-7700 - Dell Precision 3620 Kaby Lake, 4 cores x 2 threads, 3.6 GHz 16 GB N N Dual-boot: 1) FreeBSD (version?); 2) Windows 10 SVA research criswell
moncayo Intel Core i5-5250U - Intel NUC 5i5RYH Broadwell, 2 cores x 2 threads, 1.6 GHz 16 GB N N Linux Mint 18.1 (host to Windows VMs) Various security research criswell
node1x12a Intel Xeon E5-2650 128 GB Y Y CentOS 7 vision research GPU computing jluo 5/2018
node2x10c Intel Xeon Silver 41140 16 GB N N fedora 28 ? cding 6/2018

INSTRUCTIONAL (CSUG) Machines

Node Name CPU(s) Details Memory NFS CS Login OS Primary Use Primary PI Purchased
node-ibm-822 2 IBM S822L Power8 4.1GHz, 10-core x 8-"Thread" 64GB Y Y CentOS7 Instructional staff
node2x18a 2 Xeon E5-2695 Haswell, 2.10GHz, 18-core x 2-"Threads" 98GB Y Y Fedora 26 Instructional staff
node2x14a 2 Xeon E5-2695 Haswell, 2.30GHz, 14-core x 2-"Threads" 98GB Y Y Fedora 26 Instructional staff
gpu-node0[1-6] 1 Intel i7-7700K 32GB Y Y CentOS7 INSTRUCTIONAL GPU COMPUTING staff 1/2018


This topic: Main > TWikiUsers > DaveCostello > DaveCostelloLeftBar > CsGuide > ComputingResources > MultiCoreMachines
Topic revision: r19 - 2018-07-02 - JamesRoche
 
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