# XP/S-MP 125
**Wikidata**: [Q70209224](https://www.wikidata.org/wiki/Q70209224)  
**Source**: https://4ort.xyz/entity/xp-s-mp-125

## Summary
The XP/S-MP 125 is a supercomputer manufactured by Intel. It operates on the OSF/1 operating system, a variant of Unix developed by the Open Software Foundation. The system is capable of a maximum performance (Rmax) of 103.5 gigaflops and a theoretical peak performance (Rpeak) of 125.1 gigaflops.

## Key Facts
- **Classification:** The XP/S-MP 125 is classified as a supercomputer.
- **Manufacturer:** The system was manufactured by Intel, an American multinational technology company.
- **Operating System:** It runs on OSF/1, a Unix variant developed by the Open Software Foundation. (Source material also links the system to Tru64 UNIX).
- **Performance (Rmax):** The system achieved a sustained performance of 103.5 gigaflops.
- **Performance (Rpeak):** The system has a theoretical peak performance of 125.1 gigaflops.
- **TOP500 ID:** It is listed with the TOP500 system identifier 2204.
- **Performance Timeline:** Performance metrics (103.5 Rmax / 125.1 Rpeak) were recorded consistently across multiple ranking periods between June 1998 and June 2000.

## FAQs
### Q: What type of computer is the XP/S-MP 125?
A: The XP/S-MP 125 is a supercomputer manufactured by Intel. It is designed for high-performance computing tasks.

### Q: What operating system does the XP/S-MP 125 use?
A: The supercomputer runs on OSF/1, which is a variant of the Unix operating system developed by the Open Software Foundation.

### Q: How fast is the XP/S-MP 125?
A: The XP/S-MP 125 has a theoretical peak performance (Rpeak) of 125.1 gigaflops and a maximum sustained performance (Rmax) of 103.5 gigaflops.

## Why It Matters
The XP/S-MP 125 represents a specific era of high-performance computing where Intel architectures were utilized to achieve gigaflop-level processing power. Listed on the TOP500 supercomputer records with system ID 2204, it demonstrates the scaling capabilities of late 1990s technology, maintaining consistent performance benchmarks of over 100 gigaflops across several years (1998–2000).

The system is significant for its integration of the OSF/1 operating system (also known relationally as Tru64 UNIX), highlighting the reliance of supercomputers on specialized Unix variants during this period to manage complex computational workloads. As a product of Intel, it underscores the company's historical role not just in consumer processors, but in building comprehensive supercomputing systems for industrial or research applications.

## Notable For
- Being a fully integrated supercomputer system produced by Intel.
- Utilizing OSF/1, a distinct Unix variant, as its primary operating environment.
- Maintaining a consistent Rmax performance of 103.5 gigaflops over a multi-year period (1998–2000).
- Achieving a TOP500 system ID of 2204.
- Bridging the gap between Intel's semiconductor manufacturing and full-scale supercomputer production.

## Body

### System Overview
The XP/S-MP 125 is a high-performance computing machine identified as a supercomputer. Its development and production were carried out by Intel, a major entity in the semiconductor and electrical industries.

### Operating Environment
The system relies on specific operating systems to manage its resources:
*   **Primary OS:** The structured data specifies **OSF/1** as the operating system. This is a variant of Unix created by the Open Software Foundation.
*   **Associated OS:** The system context also references **Tru64 UNIX** (formerly OSF/1), a Unix operating system originating in the United States (inception 1992).

### Performance Metrics
The XP/S-MP 125's computational power is documented through specific performance values recorded between 1998 and 2000. The data indicates stability in the machine's output over this period.

*   **Rmax (Max Sustained Performance):** 103.5 Gigaflops
*   **Rpeak (Theoretical Peak Performance):** 125.1 Gigaflops

**Historical Performance Data:**
The following metrics were recorded at various points in time, indicating the system's standing during the late 1990s and early 2000s:
*   **June 1998:** Rmax 103.5 GFlops / Rpeak 125.1 GFlops
*   **November 1998:** Rmax 103.5 GFlops / Rpeak 125.1 GFlops
*   **June 1999:** Rmax 103.5 GFlops / Rpeak 125.1 GFlops
*   **November 1999:** Rmax 103.5 GFlops / Rpeak 125.1 GFlops
*   **June 2000:** Rmax 103.5 GFlops / Rpeak 125.1 GFlops