# Kuma supercomputer

> supercomputer

**Wikidata**: [Q131438208](https://www.wikidata.org/wiki/Q131438208)  
**Source**: https://4ort.xyz/entity/kuma-supercomputer

## Summary
The Kuma supercomputer is a high-performance computing system operated by the Swiss Federal Institute of Technology in Lausanne (EPFL) and manufactured by Lenovo. Ranked 102 in the TOP500 list as of November 2024, it utilizes AMD EPYC 9334 processors and delivers a peak performance of 21.66 petaflops. Kuma supports scientific research and complex computational tasks in fields like climate modeling and materials science.

## Key Facts
- **Operator**: Swiss Federal Institute of Technology in Lausanne (EPFL).
- **Manufacturer**: Lenovo, a Chinese multinational technology company.
- **CPU**: AMD EPYC 9334 processors with 32 cores each, clocked at 2.7 GHz.
- **Performance**: 11.95 petaflops (Rmax) and 21.66 petaflops (Rpeak).
- **Ranking**: Achieved #102 in the TOP500 list (November 2024) and #124 (June 2025).
- **Country**: Located in Switzerland.
- **Inception**: Deployed in 2024.
- **Cores**: 26,240 processor cores.
- **Bus**: ConnectX-7 InfiniBand interconnect.

## FAQs
### Q: What is the Kuma supercomputer used for?
A: The Kuma supercomputer is used for advanced scientific research, including climate modeling, materials science, and complex data analysis, supporting projects at EPFL and partner institutions.

### Q: Where is the Kuma supercomputer ranked globally?
A: As of November 2024, Kuma ranked #102 on the TOP500 list of the world’s fastest supercomputers, later ranking #124 in June 2025.

### Q: Who built the Kuma supercomputer?
A: Kuma was manufactured by Lenovo, utilizing AMD EPYC processors and NVIDIA H100 GPUs.

## Why It Matters
The Kuma supercomputer represents a significant advancement in high-performance computing (HPC) infrastructure in Switzerland, enabling cutting-edge research in critical scientific domains. Its inclusion in the TOP500 list underscores its computational power and efficiency, particularly in handling large-scale simulations and data-intensive tasks. As a Lenovo-built system leveraging AMD EPYC processors and NVIDIA GPUs, Kuma exemplifies collaborative innovation in the tech industry. Its deployment at EPFL highlights Switzerland’s commitment to fostering scientific discovery and technological leadership, providing researchers with the tools to address global challenges such as climate change and sustainable energy development.

## Notable For
- **TOP500 Rankings**: Achieved positions #102 (November 2024) and #124 (June 2025) in global supercomputing performance.
- **AMD EPYC Integration**: Utilizes AMD EPYC 9334 processors, showcasing the capabilities of this server processor line.
- **InfiniBand Networking**: Employs ConnectX-7 InfiniBand for high-speed interconnectivity, enhancing data transfer efficiency.
- **EPFL Partnership**: Operated by a renowned academic institution, aligning supercomputing resources with academic and scientific goals.

## Body
### Overview
The Kuma supercomputer is a Lenovo-manufactured system deployed at the Swiss Federal Institute of Technology in Lausanne (EPFL) in 2024. It is designed to support research in fields requiring intensive computational power, such as climate science, materials engineering, and artificial intelligence.

### Specifications
- **Processors**: 26,240 cores from AMD EPYC 9334 processors (32 cores per processor, 2.7 GHz).
- **GPUs**: NVIDIA H100 GPUs (exact count not specified in provided data).
- **Interconnect**: ConnectX-7 InfiniBand for high-bandwidth, low-latency networking.
- **Operating System**: Red Hat Enterprise Linux.

### Performance Metrics
- **Rmax (Linpack Benchmark)**: 11.95 petaflops.
- **Rpeak (Theoretical Peak)**: 21.66 petaflops.
- **HPCG Benchmark**: 0.118881 petaflops.
- **Nmax (Theoretical Half-Precision Peak)**: 1,943,040 teraflops.

### Rankings
- **November 2024**: Ranked #102 on the TOP500 list.
- **June 2025**: Ranked #124 on the TOP500 list.

### Operator and Location
Kuma is operated by EPFL in Switzerland, a country with a strong focus on scientific research and innovation. The system is part of EPFL’s SCITAS (Scientific IT and Application Support) infrastructure, accessible to researchers and industrial partners for collaborative projects.

### Hardware and Software
- **Manufacturer**: Lenovo, utilizing ThinkSystem SR675 V3 servers.
- **Compiler**: NVIDIA CUDA Compiler version 12.4.1.
- **Website**: [EPFL SCITAS Kuma Page](https://www.epfl.ch/research/facilities/scitas/hardware/kuma/).

### Technical Details
- **TOP500 System ID**: 180344.
- **Full Specification**: "Kuma - ThinkSystem SR675 V3, AMD EPYC 9334 32C 2.7GHz, NVIDIA H100, ConnectX-7 Infiniband, Red Hat Enterprise Linux."

## References

1. [TOP500](https://www.top500.org/system/180344)
2. [Source](https://www.top500.org/system/180344/)