# XP/S-MP 15
**Wikidata**: [Q70147320](https://www.wikidata.org/wiki/Q70147320)  
**Source**: https://4ort.xyz/entity/xp-s-mp-15

## Summary
XP/S-MP 15 is a supercomputer manufactured by Intel, running on the OSF/1 operating system. It was part of the Top500 list of supercomputers and achieved peak performance ratings of up to 14.7 gigaflops in 1995–1997.

## Key Facts
- **Instance of**: Supercomputer
- **Manufacturer**: Intel
- **Operating System**: OSF/1
- **Top500 System ID**: 1893
- **Peak Performance**: 14.7 gigaflops (Rpeak) in 1997
- **Maximum Performance**: 12.25 gigaflops (Rmax) in 1995
- **Processor Cores**: 294
- **Performance Metrics**: Reported in 1995–1997 with consistent Rmax and Rpeak values
- **Operating System Alternatives**: Also compatible with Tru64 UNIX

## FAQs
### Q: What company built the XP/S-MP 15 supercomputer?
A: The XP/S-MP 15 was manufactured by Intel, a leading American technology company.

### Q: What operating systems did XP/S-MP 15 support?
A: It ran on OSF/1, a Unix variant, and was also compatible with Tru64 UNIX.

### Q: What was the peak performance of XP/S-MP 15?
A: The system achieved a peak performance of 14.7 gigaflops (Rpeak) in 1997.

### Q: How many processor cores did XP/S-MP 15 have?
A: It had 294 processor cores.

### Q: When was XP/S-MP 15 listed in the Top500?
A: It was assigned the Top500 system ID 1893, but no specific ranking date is provided.

## Why It Matters
The XP/S-MP 15 was a significant supercomputer in the late 1990s, leveraging Intel’s semiconductor technology to deliver high-performance computing capabilities. Its compatibility with OSF/1 and Tru64 UNIX made it a versatile platform for scientific and industrial applications. With 294 processor cores and peak performance metrics of up to 14.7 gigaflops, it represented a milestone in parallel computing. While its exact role in the Top500 rankings is not detailed, its inclusion highlights Intel’s contributions to early supercomputing architectures.

## Notable For
- **High Performance**: Achieved consistent peak and maximum performance ratings in the 12–14.7 gigaflops range.
- **Processor Density**: Featured 294 cores, a notable specification for its era.
- **Operating System Flexibility**: Supported both OSF/1 and Tru64 UNIX, broadening its usability.
- **Intel Manufacturing**: Built by Intel, reflecting the company’s early advancements in supercomputing hardware.
- **Top500 Recognition**: Listed under ID 1893, indicating its recognition in the supercomputing community.

## Body
### Overview
The XP/S-MP 15 was a supercomputer developed by Intel, designed to run on OSF/1, a Unix variant, and compatible with Tru64 UNIX. It was part of the Top500 supercomputer rankings, identified by system ID 1893.

### Performance Metrics
The system’s performance was documented in multiple reports, with consistent Rmax and Rpeak values:
- **1995**: 12.25 gigaflops (Rmax) and 14.7 gigaflops (Rpeak)
- **1996**: 12.25 gigaflops (Rmax) and 14.7 gigaflops (Rpeak)
- **1997**: 12.25 gigaflops (Rmax) and 14.7 gigaflops (Rpeak)

### Hardware Specifications
- **Processor Cores**: 294
- **Manufacturer**: Intel, a company known for its semiconductor industry contributions.

### Operating Systems
- **Primary OS**: OSF/1, a Unix variant developed by the Open Software Foundation.
- **Alternative OS**: Tru64 UNIX, an operating system developed in the United States in 1992.

### Context
The XP/S-MP 15 was part of Intel’s efforts to advance supercomputing technology, leveraging its expertise in semiconductor manufacturing. Its inclusion in the Top500 list underscores its role in high-performance computing during the late 1990s.