Ouessant : Hardware configuration

The platform is composed of the following components:

Two “Firestone” nodes are used as front-ends. Twelve “Minsky” nodes are the compute nodes.

The Minsky and Firestone Nodes

Minsky Firestone
# Processors 2 2
Model POWER8+ POWER8
Core 10 10
Logical cores 10-80 10-80
Frequency 2.86 GHz 2.93 GHz
Memory 128 GB 128 GB
Memory controller 2 2
L3 Cache 8 MB 8 MB
L4 Cache 16 MB 16 MB
Memory bandwidth 230 GB/s 230 GB/s
Performance peak 235 GFlop/s 235 GFlop/s
# GPUs 4 2
Model Tesla P100 Tesla K80
CUDA cores 3584 4992
Memory 16 GB 24 GB
Performance peak 5.3 Tflop/s 1.87 Tflop/s

Multithreading

There are 4 levels of multithreading (SMT). Each level defines the number of available logical cores:

SMT # Logical cores
1 (Off) 20
2 40
4 80
8 160