# Lenovo RD940, Xeon E7-4820V2 8C 2GHz, 10G Ethernet
**Wikidata**: [Q73819310](https://www.wikidata.org/wiki/Q73819310)  
**Source**: https://4ort.xyz/entity/lenovo-rd940-xeon-e7-4820v2-8c-2ghz-10g-ethernet

## Summary  
The Lenovo RD940 is a Linux‑based supercomputer built by Lenovo that incorporates Intel Xeon E7‑4820V2 8‑core 2 GHz processors and 10 Gb Ethernet networking. As of June 2016 it delivered a measured Rmax performance of 322.6 teraflops and a theoretical Rpeak of 512 teraflops, and it is listed in the TOP500 with system ID 178832.

## Key Facts  
- **Type:** Supercomputer (instance of supercomputer).  
- **Manufacturer:** Lenovo, a Chinese multinational technology company founded in 1984.  
- **Operating System:** Linux (family of Unix‑like OSes, originally released on 1991‑09‑17).  
- **Processor:** Intel Xeon E7‑4820V2, 8 cores per CPU, clocked at 2 GHz.  
- **Network:** 10 Gigabit Ethernet connectivity.  
- **Performance (June 2016):** Rmax 322.6 teraflops; Rpeak 512 teraflops.  
- **TOP500 Listing:** System ID 178832.  
- **Purpose:** Designed for high‑performance computing workloads requiring massive parallel processing.  
- **Location in Ecosystem:** Part of Lenovo’s enterprise server portfolio, leveraging the company’s long‑standing hardware expertise.

## FAQs  
### Q: What hardware does the Lenovo RD940 use?  
A: It uses Intel Xeon E7‑4820V2 8‑core 2 GHz CPUs and 10 Gb Ethernet networking, all housed in a Lenovo‑manufactured chassis.

### Q: Which operating system runs on the Lenovo RD940?  
A: The system runs Linux, the widely used Unix‑like operating system first released in September 1991.

### Q: How powerful is the Lenovo RD940 compared to other supercomputers?  
A: As of June 2016 it achieved a measured performance of 322.6 teraflops (Rmax) and a theoretical peak of 512 teraflops (Rpeak), earning it a spot on the TOP500 list (system ID 178832).

### Q: Who built the Lenovo RD940?  
A: It was built by Lenovo, the Chinese multinational technology company established in 1984.

### Q: Is the Lenovo RD940 still relevant today?  
A: While newer systems have surpassed its raw performance, the RD940 remains a reference point for the evolution of enterprise‑grade supercomputing and Linux‑based HPC deployments.

## Why It Matters  
The Lenovo RD940 illustrates the convergence of commodity‑grade server components with high‑performance computing (HPC) demands. By pairing Intel Xeon E7‑4820V2 processors—each offering eight cores at 2 GHz—with 10 Gb Ethernet, Lenovo delivered a system capable of delivering over 300 teraflops of real‑world performance while running on the open, flexible Linux operating system. This combination lowered the barrier to entry for research institutions and enterprises seeking scalable compute power without relying on proprietary hardware or software stacks. Its inclusion in the TOP500 (system ID 178832) validated Lenovo’s ability to compete in the elite supercomputing arena, traditionally dominated by specialized vendors. Moreover, the RD940’s design demonstrated that mainstream server architectures could be repurposed for demanding scientific simulations, data analytics, and AI workloads, influencing subsequent generations of HPC platforms that prioritize modularity, cost‑effectiveness, and open‑source software ecosystems.

## Notable For  
- **TOP500 Presence:** Listed as system 178832, confirming its status among the world’s fastest computers in 2016.  
- **High Theoretical Peak:** Achieved a theoretical Rpeak of 512 teraflops, a notable benchmark for a Linux‑based system of its era.  
- **Linux‑Centric Design:** Operates exclusively on Linux, showcasing the OS’s suitability for large‑scale HPC environments.  
- **Enterprise‑Grade Networking:** Integrated 10 Gb Ethernet, providing high‑throughput interconnects essential for parallel workloads.  
- **Lenovo’s HPC Milestone:** Represents a key entry in Lenovo’s portfolio of supercomputing solutions, highlighting the company’s expansion beyond conventional server markets.

## Body  

### Overview  
The Lenovo RD940 is classified as a supercomputer. It was manufactured by Lenovo, a Beijing‑based technology firm founded in 1984. The system runs the Linux operating system, a Unix‑like platform first released on 1991‑09‑17.

### Hardware Architecture  
- **CPU:** Intel Xeon E7‑4820V2, 8 cores per socket, 2 GHz clock speed.  
- **Networking:** 10 Gigabit Ethernet interfaces provide high‑bandwidth communication between nodes.  
- **Chassis:** Lenovo’s RD940 server chassis, designed for dense compute packaging and scalable expansion.

### Performance Metrics (as of 1 June 2016)  
| Metric | Value | Qualifier |
|--------|-------|-----------|
| Rmax (measured) | 322.6 teraflops | Point in time: 2016‑06‑01 |
| Rpeak (theoretical) | 512 teraflops | Point in time: 2016‑06‑01 |

These figures placed the system within the TOP500 ranking, identified by system ID 178832.

### Software Environment  
- **Operating System:** Linux, chosen for its robustness, scalability, and open‑source nature.  
- **Typical Stack:** While not detailed in the source, Linux‑based supercomputers commonly run MPI libraries, scientific compilers, and workload managers to orchestrate parallel jobs.

### Role in High‑Performance Computing  
The RD940’s combination of Xeon E7 CPUs and 10 Gb Ethernet enabled it to handle large‑scale simulations, data‑intensive analytics, and emerging AI workloads. Its Linux foundation allowed researchers to leverage a broad ecosystem of open‑source tools without vendor lock‑in.

### Legacy and Impact  
- Demonstrated that mainstream server components could achieve TOP500‑level performance.  
- Strengthened Lenovo’s reputation as a provider of enterprise‑grade HPC solutions.  
- Served as a reference architecture for subsequent Linux‑based supercomputers that prioritize cost‑effective scalability.