# XP/S5
**Wikidata**: [Q69980331](https://www.wikidata.org/wiki/Q69980331)  
**Source**: https://4ort.xyz/entity/xp-s5-q69980331

## Summary
XP/S5 is a supercomputer manufactured by Intel, running on the OSF/1 variant of Unix. It achieved a peak performance of 3.05 gigaflops and contained 61 processor cores.

## Key Facts
- **Instance Of:** Supercomputer
- **Manufacturer:** Intel
- **Operating System:** OSF/1 (a variant of Unix developed by the Open Software Foundation)
- **Top500 System ID:** 1215
- **Rmax Performance:** 1.9 gigaflops (as of November 1, 1994)
- **Rpeak Performance:** 3.05 gigaflops (as of November 1, 1994)
- **Number of Processor Cores:** 61
- **Related OS:** Tru64 UNIX (operating system)

## FAQs
### Q: Who manufactured the XP/S5 supercomputer?
A: The XP/S5 supercomputer was manufactured by Intel, the American multinational technology company.

### Q: What operating system did the XP/S5 run on?
A: The XP/S5 ran on OSF/1, a variant of the Unix operating system developed by the Open Software Foundation. It is also related to the Tru64 UNIX operating system.

### Q: What was the peak performance of the XP/S5?
A: The XP/S5 achieved a peak (Rpeak) performance of 3.05 gigaflops, measured on November 1, 1994. Its maximum sustained (Rmax) performance was 1.9 gigaflops on the same date.

## Why It Matters
The XP/S5 represents a significant step in the evolution of supercomputing during the early 1990s. As an Intel-manufactured system, it contributed to the advancement of high-performance computing capabilities. Its performance metrics, while modest by today's standards, were substantial for its time, enabling complex scientific and engineering computations. The system's use of OSF/1 and its relationship with Tru64 UNIX also highlights the landscape of Unix-based operating systems in the supercomputing domain. Understanding systems like the XP/S5 provides context for the rapid technological progress in computational power over the following decades.

## Notable For
- Manufactured by Intel, a major technology company.
- Utilized OSF/1, a specific Unix variant developed by the Open Software Foundation.
- Achieved a peak performance of 3.05 gigaflops (Rpeak) in November 1994.
- Contained 61 processor cores.
- Identified with the Top500 supercomputer list under system ID 1215.

## Body
### Hardware Specifications
- **Manufacturer:** Intel
- **Instance Of:** Supercomputer
- **Number of Processor Cores:** 61
- **Top500 System ID:** 1215

### Operating System
- **Primary OS:** OSF/1 (a variant of Unix developed by the Open Software Foundation)
- **Related OS:** Tru64 UNIX (operating system)

### Performance Metrics
- **Rmax Performance:** 1.9 gigaflops (as of November 1, 1994)
- **Rpeak Performance:** 3.05 gigaflops (as of November 1, 1994)