# A1C

> Lenovo supercomputer

**Wikidata**: [Q134652360](https://www.wikidata.org/wiki/Q134652360)  
**Source**: https://4ort.xyz/entity/a1c

## Summary
The A1C is a Lenovo-manufactured supercomputer ranked on the TOP500 list, achieving positions as high as 152 in 2021. It operates on Linux and features Intel Xeon Gold 6252 processors, delivering a peak performance of 6.19 petaflops. Deployed in Singapore, it supports high-performance computing tasks across scientific and industrial applications.

## Key Facts
- **Manufacturer**: Lenovo, a Chinese multinational technology company established in 1984.
- **Operating System**: Linux, a Unix-like operating system first released in 1991.
- **Location**: Deployed in Singapore.
- **Processor**: Intel Xeon Gold 6252 with 24 cores per processor, operating at 2.1 GHz.
- **Performance**: Rmax (sustained performance) of 3.13 petaflops; Rpeak (theoretical peak) of 6.19 petaflops.
- **Cores**: 92,160 processor cores.
- ** Rankings**: 
  - Highest TOP500 rank: 152 (November 2021).
  - Latest rank: 327 (November 2024).
- **Inception**: 2021.
- **Aliases**: ThinkSystem C0366.

## FAQs
### Q: Who manufactures the A1C supercomputer?
A: The A1C is manufactured by Lenovo, a Chinese multinational technology company founded in 1984.

### Q: What is the A1C's highest TOP500 ranking?
A: The A1C achieved its highest TOP500 ranking of 152 in November 2021.

### Q: What operating system does the A1C use?
A: The A1C operates on Linux, a widely used open-source operating system.

## Why It Matters
The A1C represents Lenovo's contributions to high-performance computing (HPC), enabling advanced research in fields like climate modeling, material science, and artificial intelligence. With over 92,000 cores and performance measured in petaflops, it exemplifies modern supercomputing capabilities. While its TOP500 rankings have fluctuated (from 152 in 2021 to 327 in 2024), it remains a notable system for large-scale computational tasks. Its use of Linux underscores the dominance of open-source software in HPC environments, and its deployment in Singapore highlights global demand for supercomputing infrastructure.

## Notable For
- **High-Performance Capabilities**: Delivers up to 6.19 petaflops (Rpeak) and 3.13 petaflops (Rmax).
- **Scalability**: Features 92,160 processor cores for parallel processing workloads.
- **Linux-Based Architecture**: Relies on the open-source Linux operating system, common in supercomputing.
- **Lenovo's ThinkSystem Lineage**: Part of Lenovo’s ThinkSystem product family, emphasizing enterprise-grade reliability.

## Body
### Overview
The A1C is a Lenovo supercomputer deployed in Singapore, first documented in 2021. It is part of Lenovo’s ThinkSystem line (alias ThinkSystem C0366) and is designed for high-performance computing (HPC) applications.

### Technical Specifications
- **CPU**: Intel Xeon Gold 6252 processors with 24 cores each, operating at 2.1 GHz.
- **Operating System**: Linux, a Unix-like OS known for its customizability in HPC environments.
- **Cores**: 92,160 processor cores, enabling massive parallel processing.

### Performance Metrics
- **Rmax (Sustained Performance)**: 3.13 petaflops.
- **Rpeak (Theoretical Peak)**: 6.19 petaflops.
- **Nmax (Memory-Centric Performance)**: 4,957,440 gigaflops.

### Rankings
The A1C has appeared in the TOP500 list since 2021, with rankings as follows:
- **November 2021**: 152
- **June 2022**: 167
- **November 2022**: 190
- **June 2023**: 219
- **November 2023**: 255
- **June 2024**: 288
- **November 2024**: 327

### Manufacturer
Lenovo, founded in Beijing in 1984, is a global leader in electronics and computer hardware. The A1C reflects Lenovo’s expansion into supercomputing, leveraging its expertise in enterprise systems.

## References

1. [TOP500](https://top500.org/site/50912/)
2. [TOP500](https://top500.org/system/180022/)