# SB2

> supercomputer

**Wikidata**: [Q74494185](https://www.wikidata.org/wiki/Q74494185)  
**Source**: https://4ort.xyz/entity/sb2

## Summary
SB2 is a Lenovo-manufactured supercomputer ranked on the TOP500 list of the world's fastest supercomputers, achieving a peak performance of 2.12 petaflops. Located in Singapore, it operates on Linux and utilizes Xeon E5-2673v4 processors. Introduced in 2018, it supports high-performance computing tasks across industrial and research sectors.

## Key Facts
- **Manufacturer**: Lenovo, a Chinese multinational technology company established in 1984.
- **Operating System**: Linux, a Unix-like operating system first released in 1991.
- **Processor**: Xeon E5-2673v4 20C 2.3GHz, with 57,600 total processor cores.
- **Performance**: 1.65 petaflops (Rmax), 2.12 petaflops (Rpeak), and 8,586,432 teraflops (Nmax).
- **TOP500 Rankings**: Peaked at #177 in November 2018, with subsequent rankings including #231 (June 2019), #308 (November 2019), #355 (June 2020), #391 (November 2020), and #439 (June 2021).
- **Inception**: 2018, as documented by TOP500.org.
- **Location**: Singapore, as of October 2025.

## FAQs
### Q: Who manufactured SB2?
A: SB2 was manufactured by Lenovo, a Chinese multinational technology company.

### Q: What is SB2's peak performance?
A: SB2 has a peak performance (Rpeak) of 2.12 petaflops and a sustained performance (Rmax) of 1.65 petaflops.

### Q: Where is SB2 located?
A: SB2 is located in Singapore, as verified by TOP500.org in October 2025.

## Why It Matters
SB2 represents a notable contribution to high-performance computing (HPC) infrastructure, particularly in Singapore. As a Lenovo-built system, it underscores the company's role in advancing supercomputing technology for industrial and research applications. Its inclusion in the TOP500 list between 2018 and 2021 highlights its capacity to handle complex computational tasks, from scientific modeling to data analytics. While its rankings declined over time due to rapid advancements in the field, SB2 remains a benchmark for mid-scale supercomputing solutions, demonstrating the practical application of Linux-based systems and Intel Xeon processors in driving innovation.

## Notable For
- **Lenovo Manufacturing**: Part of Lenovo's portfolio of HPC systems, reflecting the company's expansion into supercomputing.
- **Linux-Based Operation**: Demonstrates the scalability of open-source Linux in powering large-scale computing infrastructure.
- **Xeon E5-2673v4 Processors**: Utilizes Intel's 20-core processors optimized for high-throughput computing.
- **TOP500 Recognition**: Maintained a presence in the TOP500 list for over three years, peaking at #177 in November 2018.

## Body
### Specifications
- **CPU**: Xeon E5-2673v4 20C 2.3GHz (20 cores per processor, 2.3GHz clock speed).
- **Cores**: 57,600 total processor cores.
- **Networking**: 40G Ethernet interconnect.
- **Performance Metrics**:
  - **Rmax (Sustained)**: 1.65 petaflops.
  - **Rpeak (Theoretical)**: 2.12 petaflops.
  - **Nmax (Theoretical Half-Precision)**: 8,586,432 teraflops.

### Rankings
- **2018**: Debuted at #177 (November).
- **2019**: Ranked #231 (June) and #308 (November).
- **2020**: Ranked #355 (June) and #391 (November).
- **2021**: Final recorded rank at #439 (June).

### Manufacturer & Operating System
- **Manufacturer**: Lenovo, headquartered in Beijing, China, with 77,000 employees as of 2023.
- **Operating System**: Linux, first released on September 17, 1991, by Linus Torvalds.

### Location & Inception
- **Inception**: 2018, as per TOP500.org records.
- **Location**: Singapore, confirmed as of October 2025 via TOP500 site data.

## References

1. [Source](https://www.top500.org/site/50758/)
2. [Source](https://top500.org/system/179448/)