# A4A

> American supercomputer

**Wikidata**: [Q133455470](https://www.wikidata.org/wiki/Q133455470)  
**Source**: https://4ort.xyz/entity/a4a

## Summary
A4A is an American supercomputer built by Lenovo in 2021. It runs on Linux and is ranked 486th on the TOP500 list as of November 2024.

## Key Facts
- Built by Lenovo in 2021
- Runs on Linux operating system
- Ranked 486th on TOP500 list (November 2024)
- Ranked 266th on TOP500 list (November 2021)
- Contains 69,120 processor cores
- Uses Xeon Gold 6252 processors (24 cores, 2.1GHz)
- Achieves 2.35 petaflops Rmax performance
- Achieves 4.64 petaflops Rpeak performance
- Located in the United States
- Classified as an industrial sector supercomputer

## FAQs
### Q: What is A4A?
A: A4A is an American supercomputer built by Lenovo in 2021 that runs on Linux. It's ranked on the TOP500 list of the world's most powerful supercomputers.

### Q: What are A4A's specifications?
A: A4A contains 69,120 processor cores using Xeon Gold 6252 CPUs running at 2.1GHz. It achieves 2.35 petaflops Rmax and 4.64 petaflops Rpeak performance.

### Q: How is A4A ranked on the TOP500 list?
A: A4A is currently ranked 486th on the TOP500 list (November 2024), having previously been ranked 266th in November 2021.

## Why It Matters
A4A represents a significant computing resource for industrial applications in the United States. As a Lenovo-built system running Linux, it demonstrates the capability of commercial hardware to deliver high-performance computing for industrial sector needs. Its presence on the TOP500 list indicates it's among the world's most powerful computing systems, capable of handling complex calculations and simulations that would be impossible on conventional computers. The system's performance metrics (2.35 petaflops Rmax) make it suitable for tasks like scientific modeling, data analysis, and engineering simulations that drive innovation in various industries.

## Notable For
- Built by Lenovo, a major Chinese technology company
- Runs on Linux, the open-source operating system
- Contains 69,120 processor cores for massive parallel processing
- Ranked on the prestigious TOP500 supercomputer list
- Delivers 2.35 petaflops of computing performance

## Body
### Technical Specifications
A4A is powered by Xeon Gold 6252 processors, each featuring 24 cores running at 2.1GHz. The system contains a total of 69,120 processor cores, enabling massive parallel processing capabilities. The supercomputer achieves a maximum measured performance (Rmax) of 2.35 petaflops and a theoretical peak performance (Rpeak) of 4.64 petaflops.

### Hardware and Architecture
The system utilizes 100G Ethernet networking for high-speed data transfer between nodes. As a Lenovo-built system, A4A represents the company's capability to deliver high-performance computing solutions for the American market. The hardware configuration is optimized for industrial applications requiring substantial computational resources.

### Software and Operating System
A4A runs on Linux, the open-source Unix-like operating system first released in 1991. Linux is widely used in supercomputing due to its stability, flexibility, and strong support for parallel processing. The choice of Linux enables A4A to leverage a vast ecosystem of scientific and engineering software tools.

### Performance and Ranking
Since its inception in 2021, A4A has maintained a position on the TOP500 list, currently ranked 486th as of November 2024. This ranking reflects its standing among the world's most powerful supercomputers. The system's performance has been measured and verified according to TOP500 standards, with specific metrics for both sustained and peak performance.

### Industrial Applications
As an industrial sector supercomputer, A4A is designed to handle computationally intensive tasks common in manufacturing, engineering, and research applications. Its substantial processing power makes it suitable for complex simulations, large-scale data analysis, and other demanding computational workloads that drive industrial innovation and productivity.

## References

1. [Source](https://top500.org/system/179998/)
2. [TOP500](https://top500.org/system/179998/)
3. [Source](https://www.top500.org/site/50905/)
4. [TOP500](https://top500.org/system/179998)