# JD D1

> Supercomputer

**Wikidata**: [Q74452017](https://www.wikidata.org/wiki/Q74452017)  
**Source**: https://4ort.xyz/entity/jd-d1

## Summary
JD D1 is a supercomputer built by Lenovo and located in China, ranking 329th on the June 2018 TOP500 list and 490th on the November 2018 list. It runs on Linux and uses Xeon E5-2650v4 processors, achieving a peak performance of 895.1 teraflops.

## Key Facts
- JD D1 was built in 2018 by Lenovo, a Chinese multinational technology company.
- It is located in China and runs on the Linux operating system.
- The system uses Xeon E5-2650v4 12-core processors clocked at 2.2 GHz.
- JD D1 features 51,360 processor cores and connects via 10-gigabit Ethernet.
- It achieved a maximum performance (Rmax) of 895.1 teraflops in both June and November 2018.
- The system is also known by the alias "Lenovo x3550."
- JD D1 is classified as a supercomputer and is listed on the TOP500 with system ID 179365.

## FAQs
### Q: What is JD D1?
A: JD D1 is a Lenovo-built supercomputer located in China, ranked on the TOP500 list in 2018 with a peak performance of 895.1 teraflops.

### Q: What processors does JD D1 use?
A: JD D1 uses Xeon E5-2650v4 12-core processors running at 2.2 GHz.

### Q: What operating system runs on JD D1?
A: JD D1 runs on the Linux operating system.

## Why It Matters
JD D1 represents a significant entry in the global supercomputing landscape, showcasing China's growing capabilities in high-performance computing infrastructure. As a Lenovo-built system, it highlights the company's role in providing advanced computing solutions for research, industry, and government applications. Its inclusion in the TOP500 rankings demonstrates its competitive performance at the time, contributing to the broader ecosystem of computational resources used for complex simulations, data analysis, and scientific discovery. Supercomputers like JD D1 are essential for advancing fields such as climate modeling, genomics, and artificial intelligence, where massive parallel processing power is required.

## Notable For
- Ranked 329th on the June 2018 TOP500 list and 490th on the November 2018 list.
- Built by Lenovo, a major Chinese technology manufacturer.
- Achieves 895.1 teraflops of peak performance using Xeon processors.
- Features 51,360 processor cores for high-performance parallel computing.
- Runs on Linux, a widely used operating system in supercomputing environments.

## Body
### Technical Specifications
JD D1 is powered by Intel Xeon E5-2650v4 processors, each featuring 12 cores and operating at a base frequency of 2.2 GHz. The system is equipped with a total of 51,360 processor cores, enabling it to perform highly parallelized computations. The supercomputer connects its nodes using 10-gigabit Ethernet networking, which supports high-speed data transfer between processors.

### Performance and Rankings
In June 2018, JD D1 achieved a maximum performance (Rmax) of 895.1 teraflops, placing it 329th on the TOP500 list of the world's most powerful supercomputers. By November 2018, it maintained the same performance level but dropped to 490th place, reflecting the rapid advancement and addition of newer systems to the rankings.

### System Architecture and Software
The supercomputer runs on the Linux operating system, which is the dominant OS in high-performance computing due to its stability, scalability, and open-source nature. Linux's flexibility allows JD D1 to efficiently manage its large number of cores and support a wide range of scientific and industrial applications.

### Manufacturer and Location
JD D1 was manufactured by Lenovo, a Chinese multinational technology company headquartered in Beijing. Lenovo's involvement underscores China's growing influence in the global supercomputing market. The system is located in China, contributing to the country's computational research and development capabilities.

### Classification and Identity
JD D1 is classified as a supercomputer, a category of computers designed for high-speed, large-scale data processing and complex simulations. It is also known by the alias "Lenovo x3550," reflecting its hardware lineage. The system is cataloged on the TOP500 with the identifier 179365, ensuring its traceability and recognition in the supercomputing community.

## References

1. [TOP500](https://top500.org/system/179365/)