The Extreme Light Infrastructure ERIC

Computer Clusters

Complex physical simulations require immense computing power utilizing large cluster computers. ELI provides its scientists with two in-house clusters for fast access to testing their new ideas.

Clusters provide computational resources for scientists and engineers who work at the ELI facility as well as for ELI’s users who may benefit from computer simulations. From calculations related with radiation activation for design of experimental areas to more detailed aspects of laser-target interactions like laser-plasma phenomena, particle acceleration and such, computer resources such as clusters can help ELI’s scientists gain further insights into complex phenomena.

The presence of an in-house cluster also serves as a meeting point for the disciplines of physics (theory and applications), mathematics and computer science, fostering collaborative efforts. From code development to optimization, scientists can gain further experience as they locally improve their tools before deploying them in larger computer centers within the Czech Republic or other places in Europe.


The Eclipse (Extreme Coherent Light Interaction: Plasma Simulations of the Extreme):

Number of compute nodes 84
Total number of cores 1,344
Processor Haswell-EP (Intel Xeon E5-2630v3)
Node RAM 128 GB (DDR4)
Node hard disk 180 GB
Total RAM 10.75 TB
Maximum theoretical peak performance 103 Tflops (single precision)
Network infrastructure Infiniband non-blocking fat-tree configuration
User data storage (home) 768 TB
Job data storage (scratch) 192 TB


The Sunrise HPC:

Number of compute nodes 324
Total number of cores 7776
Processor Intel Xeon, class Cascade Lake
Node RAM 128 GB (DDR4)
Node hard disk 192 GB
Total RAM 62 TB
Network infrastructure Infiniband HDR
Storage 1 PB
Maximum theoretical peak performance 547 Tflops (single precision)