The Patriot ClusterHardware

The Hardware

• 13 Nodes

• 160 CPU Cores

• 2496 GPU Cores

• 576 GB RAM

• 13 TB ROM

This gets hot! So this must stay cold!

One More Time:• 13 Nodes

• 160 CPU Cores

• 2496 GPU Cores

• 576 GB RAM

• 13 TB ROM

Software & Administration

• NETWORKING

• Networking MLA’s

• Network Security

• USER SOFTWARE

• Programming MLA’s

• SLURM

• ADMINISTRATION

• Crontab

• Adding User Accounts

• Declaring File Permissions

User Experience

• What lets us use it?

• How do we use it?

• Why do we use it?

• How can you remember all this?

Interface Software

• Languages: Fortran, C, Java, Python, CUDA

• OpenMPI and MPICH (not technically languages)

• OS: Ubuntu 12.04 LTS Server (Linux)

• Queue Manager: SLURM

What Is the Point?

Stuff runs faster!

Computation TableComputation TableComputation TableComputation TableNumber of

Cores Run-time (s) Speedup Efficiency

1 16.668 1.0000 1.00002 9.447 1.764 0.88223 6.634 2.513 0.83754 5.278 3.158 0.78958 3.406 4.894 0.611712 2.676 6.229 0.519124 2.020 8.251 0.343836 1.886 8.838 0.245548 1.785 9.338 0.1945

Diminishing Returns...

02468

101214161820

0 5 10 15 20 25 30 35 40 45 50

Run-time vs. Number of Cores

Run-

time

(s)

Number of Cores

00.10000.20000.30000.40000.50000.60000.70000.80000.90001.0000

0 5 10 15 20 25 30 35 40 45 50

Efficiency vs. Number of Cores

Effic

ienc

y

Number of Cores

01.00002.00003.00004.00005.00006.00007.00008.00009.0000

10.0000

0 5 10 15 20 25 30 35 40 45 50

Speedup vs. Number of Cores

Spee

dup

Number of Cores

Molecular Dynamics Movie

https://www.youtube.com/watch?feature=player_detailpage&v=xcMSHy3CqXA#t=32

More Reasons:

• Molecular Dynamics (lots of particles)

• Weather (resolution)

• Monte Carlo (lots of steps)

- Complicated simulations, such as:

- Different parameter input

User Webpage

• Getting started section

• Navigation & interaction information

• Programming tutorials

• Much, much more!

• www.fmupanda.com

Usage• Courses:

- Phys 220 (Into to Comp Physics)

- Phys 306 (Comp Physics)

- Phys 397 (Undergrad Research)

• Other depts with accounts:

- CompSci, Chemistry

• You can request an account

• Follow the steps covered on the webpage