Our Team

Team RACKlette consists of a group of motivated students from ETH Zürich.
Learn more about them here.

Nedjo Babic

Nedjo Babic

Computers are cool, but supercomputers are cooler!

Hannes Eberhard

Hannes Eberhard

With great power comes great responsibility.

Benedikt Falk

Benedikt Falk

I am captivated by how far HPC will unleash the power of computational intelligence.

Marcel Ferrari

Marcel Ferrari

SPQR - So many Problems running QuantumespResso

Sophia Herrmann

Sophia Herrmann

hpc computer go brrr

Faveo Hörold

Faveo Hörold

Without the wind, the grass does not move. Without software hardware is useless.

Samuel Karško

Samuel Karško

HPC: Because waiting for a regular computer is like watching paint dry.

Piotr Luczynski

Piotr Luczynski

HPC is really fascinating

Julianne Orel

Julianne Orel

Have you tried restarting the PC?

Hannah Osswald

Hannah Osswald

Here to have a good time.

Alexander Pietak

Alexander Pietak

We put man on the moon but still can't compile a program without getting an error.

Niklas Römer

Niklas Römer

I needed a new computer, so I tried HPC

Leonard Schmidt

Leonard Schmidt

What fascinates me most about HPC is the deep connection between all scientific fields and the potential it unlocks.

Alexander Sotoudeh

Alexander Sotoudeh

I joined RACKlette because ETH didn't stress me enough.

You Wu

You Wu

HPC accelerates

Yi Zhu

Yi Zhu

Truth hides in computation.

Past Members

Manuel Burger

Manuel Burger

I love the idea of performance and making things go fast.

Manuel was a founding member of the team, taking part at ISC19, SC19, and ISC20.

The team could always rely on his expert skills - there is no compiler error Manuel could not debug. His relentless research into the best matrix configuration helped RACKlette win the "Highest LinPACK" award at ISC19.

He also designed the original RACKlette logo.

Jinfan Chen

Jinfan Chen

Here is our Asian team member with an affinity for complex math problems.

Jinfan has been part of the team in the preparations for SC19 and during the competition at ISC20.

Thore Goebel

Thore Goebel

Running systems and marathons

Thore was a founding member of the the team and took part in the competitions at ISC19 Frankfurt and SC19 Denver. Amongst many other things the team was always able to rely on his great scripting skills.

André Graubner

André Graubner

I enjoy tackling seemingly simple problems that even the largest computers still struggle with.

André was a founding member of the team, and competed at ISC19. He has been essential to the extensive optimisations on the machine learning models at ISC19, which was key to the team securing 3rd place overall.

Emir Isman

Emir Isman

It is always fascinating to see the impact of computing in every field of our lives.

Emir has competed with RACKlette at SC19, ISC20 and SC20. His profound knowledge and experience with Linux and cloud systems have always been of great value to the team.

Simon Jacob

Simon Jacob

Being efficient is just being lazy, but in a clever way.

Simon has been part of the team during the competitions at SC19, ISC20 and SC20 and has contributed with his knowledge about Linux systems.

Valeria Jannelli

Valeria Jannelli

Being a passionate violinist, I am particularly interested in how HPC can revolutionize music.

Valeria was a founding member of the team. She has been part of the team during the competitions at ISC19 in Frankfurt, Germany and SC19 in Denver, Colorado US.

Lukas Kapp-Schwoerer

Lukas Kapp-Schwoerer

I am passionate about finding efficient solutions to complex computational problems

Lukas was a founding member of the team, and competed at ISC19. Without him, RACKlette would not exist today. He has been essential to the extensive optimisations on the machine learning models at ISC19, which was key to the team securing 3rd place overall.

Ege Karaismailoglu

Ege Karaismailoglu

I’m fascinated by concepts and solutions built on fundamental relations between seemingly unrelated fields.

Ege was a founding member of the team. He has been essential to the extensive optimisations on the machine learning models for ISC19 in Frankfurt, which has been a key to the team's success there.

Jan Kleine

Jan Kleine

I’m building an 8-Bit computer on breadboards.

Jan was a founding member of the team, taking part at ISC19, SC19, ISC20, and SC20.

With his deep knowledge of our hardware and software setup he always kept a clear head during stressful competition situations. He was indispensable at tutoring new team members and bringing them up to speed working with the cluster.

Rahul Steiger

Rahul Steiger

I am keen to tackle real-world problems using HPC

Antonia Unger

Antonia Unger

Imagine going from lifting 8kg at the gym to 512kg... that's how I feel about working with Emmi!

Simon Wachter

Simon Wachter

I like to apply concepts from lectures to real-world applications.

Simon has been a member of the team during the virtual competition at SC20.

Wendelin Wemhöner

Wendelin Wemhöner

When Moore's law is dying, you simply have to add more nodes.

Wendelin was a team member in 2022 and attended SC22.

    • SC23 Denver

      Piora

      Hardware

      Ranking

      Team RACKlette is the overall winner of the SC23 student cluster competition! This is not only a first for our team, but is in fact the first time an European team wins the SCC since its inception in 2007.

      Team

      Hussein Harake (advisor), Alexander Sotoudeh, Samuel Karško, Sophia Herrmann, Yi Zhu, Hannes Eberhard, Alexander Pietak, and Torsten Hoefler (advisor)
      Hussein Harake (advisor), Alexander Sotoudeh, Samuel Karško, Sophia Herrmann, Yi Zhu, Hannes Eberhard, Alexander Pietak, and Torsten Hoefler (advisor)

    • ISC23 Hamburg

      Piora

      Hardware

      Ranking

      Our team scored 3rd place overall and we are especially proud of receiving the award for the best HPL benchmark score. In fact, our HPL score was the highest ever achieved in the history of the Student Cluster Competitions!

      Team

      Sophia Herrmann, Faveo Hörold, Alexander Sotoudeh, Nikolà Lohr, Hannes Eberhard, Marcel Ferrari, and Hussein Harake (Advisor)
      Sophia Herrmann, Faveo Hörold, Alexander Sotoudeh, Nikolà Lohr, Hannes Eberhard, Marcel Ferrari, and Hussein Harake (Advisor)

    • SC22 Dallas

      Piora

      Hardware

      Team

      Marcel Ferrari, You Wu, Christopher Lompa, Niklas Römer, Piotr Luczynski, Wendelin Wemhöner, and Hussein Harake (Advisor)
      Marcel Ferrari, You Wu, Christopher Lompa, Niklas Römer, Piotr Luczynski, Wendelin Wemhöner, and Hussein Harake (Advisor)

    • 2020+ Cluster

      Emmentaler Mark III

      Our third iteration of Emmentaler (short: Emmi) with drastic vendor changes and even more GPUs

      Hardware

      Following a recent trend and to satisfy our thirst for cores and flops we made some drastic changes to our cluster setup. We are still using 4 nodes, but everything else has changed.

      We switched from Intel to AMD and are using their highest-end 64 core processors the AMD EPYC 7742. Each node is equipped with two of these poweful processors for a total of 512 CPU cores in the cluster. To accompany these 512 cores we threw in 512GB of memory on each node and 4 Nvidia V100 GPU accelerators for a total of 2TB of memory and 16 GPUs with 32GB of VRAM each. All of this is connected with a speedy interconnect from Mellanox, namely HDR ConnectX-6 adapters for a 200 Gbit/s connection between our nodes.

    • SC20 (virtual)

      The team has participated in the virtual competition of the SC20 conference running on Microsoft Cyclecloud infrastructure. The team placed 5th overall.

    • ISC20 (virtual)

      The team has participated in the virtual competition of the ISC20 conference running on hardware of the Singapore National Supercomputing Centre (NSCC). Most notable achievement was the teams second place in the machine learning task.

    • SC19 Denver

      Emmentaler Mark II

      Our second iteration of Emmentaler (short: Emmi) with minor upgrades for even more performance

      Hardware

      Our cluster at SC19 was an iteration over the setup used at ISC19. We kept the 4 node configuration and our 8180 Xeon Platinum CPUs for a total of 224 cores in the system. The nodes were still connected by a Mellanox Infiniband EDR 100Gbit/s switch and our head node ran the Bright Cluster Management system software. We upgraded to 12 V100 Tesla accelerators (3 nodes with 4 each) and added 16 Intel Optane SSD drives to build a fast parallel file system.

      Ranking

      Our team has placed 5th overall in the highly competitive setup of the competition at Supercomputing in Denver. The team scored 3rd on benchmarking.

      Team

      Manuel Burger, Jinfan Chen, Thore Goebel, Emir Isman, Simon Jacob, Valeria Jannelli and Jan Kleine

    • ISC19 Frankfurt

      Emmentaler

      In honor of the delicious Swiss cheese we named our team's first Cluster "Emmentaler"

      Hardware

      Our cluster at ISC19 was a 4 node system. Each node contained two Intel Xeon 8180 Platinum CPUs. Two nodes were additionally equipped with 4 Nvidia Tesla V100 GPU accelerators. The nodes were connected with an Infiniband EDR 100Gbit/s Interconnect from Mellanox through a switch. Node 0 has been used as a head node and ran the Bright Cluster Management software.

      Ranking

      We are proud of having placed 3rd overall at ISC19 SCC and additionally won the special award for the highest Linpack run.

      Team

      Manuel Burger, Thore Goebel, Valeria Jannelli, Lukas Kapp-Schwoerer, Ege Karaismailoglu and Jan Kleine