Surface

Surface is an unclassified resource for visualization and data analysis work.  It is limited access.

Here is a breakdown of the "mixed" composition of CPU/GPU architectures on Surface:

Architecture Clock Speed (GHz) CPUs
GPUs
Cores/CPU Node
Cores/GPU Node
Cores Total Memory/Node (GB) Memory Total (GB) TFLOPS peak
Intel 8-core Xeon E5-2670
NVIDIA Tesla K40 GPU
2.6
745 MHz
162
158*2
16
2880
2,592
910,080
256
12*2
41,472
3,792
53.9
451.9

The chart, below, is necessarily simplified to the limitations of the database and consistency with other systems.

Zone
CZ
Vendor
Appro
CPU Clock Speed (Ghz)
2.6
Nodes
Login Nodes*
Batch Nodes
158
GPU nodes
158
Total Nodes
162
CPUs
CPU Architecture
Intel Xeon E5-2670
Cores/Node
16
Total Cores
2,592
GPUs
GPU Architecture
NVIDIA Tesla K40
Total GPUs
316
GPUs per compute node
2
GPU peak performance (TFLOP/s double precision)
452.00
GPU global memory (GB)
3 792
Memory
Memory Total (GB)
41,500
CPU Memory/Node (GB)
256
Peak single CPU memory bandwidth (GB/s)
51
Peak Performance
Peak TFLOPS (CPUs)
54
Peak TFLOPs (GPUs)
452
Peak TFLOPS (CPUs+GPUs)
506
OS
TOSS 3
Interconnect
IB QDR
Parallel job type
multiple nodes per job
Run Command
srun
Recommended location for scratch file space
Program
ASC, M&IC
Password Authentication
OTP, Kerberos
Compilers
Job limits
Documentation
Availability
Limited