# XP/S-MP 22
**Wikidata**: [Q70147027](https://www.wikidata.org/wiki/Q70147027)  
**Source**: https://4ort.xyz/entity/xp-s-mp-22

## Summary
XP/S-MP 22 is an Intel-manufactured supercomputer classified as a high-performance computing system. It utilized the OSF/1 operating system and achieved performance ratings between 18.7 and 22.5 gigaflops on the Top 500 list.

## Key Facts
-   **Instance of:** Supercomputer
-   **Manufacturer:** Intel
-   **Operating System:** OSF/1 (Unix variant developed by Open Software Foundation)
-   **Performance (Rmax):** 18.7 gigaflops (measured June 1995, November 1995, June 1996, November 1996, June 1997, November 1997)
-   **Performance (Rpeak):** 22.5 gigaflops (measured June 1995, November 1995, June 1996, November 1996, June 1997, November 1997)
-   **Number of Processor Cores:** 450
-   **Top 500 System ID:** 1892
-   **Alternative OS:** Tru64 UNIX (operating system)

## FAQs
### Q: What operating system did XP/S-MP 22 run?
A: XP/S-MP 22 ran the OSF/1 operating system, a Unix variant developed by the Open Software Foundation. It was also capable of using Tru64 UNIX.

### Q: Who manufactured the XP/S-MP 22 supercomputer?
A: The XP/S-MP 22 was manufactured by Intel, the American multinational technology company.

### Q: How powerful was the XP/S-MP 22?
A: XP/S-MP 22 achieved a maximum performance (Rmax) of 18.7 gigaflops and a theoretical peak performance (Rpeak) of 22.5 gigaflops on the Top 500 list between June 1995 and November 1997.

### Q: How many processor cores did XP/S-MP 22 have?
A: XP/S-MP 22 was equipped with 450 processor cores.

## Why It Matters
XP/S-MP 22 represents a significant example of high-performance computing hardware from the mid-1990s, an era of rapid advancement in supercomputing capabilities. As an Intel-manufactured system, it showcases the company's involvement in the high-end computing market beyond processors. Its performance metrics (consistently around 18-22 gigaflops) place it as a capable system for its time, particularly for scientific and technical computing tasks that required substantial parallel processing power. While not a record-breaking system, its inclusion in the Top 500 list (ID 1892) underscores its relevance within the global supercomputing landscape of the period, contributing to the infrastructure and technical development that enabled later generations of supercomputers.

## Notable For
-   **Intel Manufacturing:** Being a supercomputer system produced by Intel, a major player primarily known for processors.
-   **OSF/1 Platform:** Utilizing OSF/1, a specific Unix-based operating system developed by the Open Software Foundation, as its primary OS.
-   **Consistent Performance:** Demonstrating stable performance benchmarks (Rmax ~18.7 Gflops, Rpeak ~22.5 Gflops) across multiple Top 500 rankings from June 1995 to November 1997.
-   **450 Core Configuration:** Featuring a notable processor core count of 450 for its era.

## Body
### Hardware & Manufacturer
-   **Manufacturer:** Intel Corporation.
-   **Instance Of:** Supercomputer.
-   **Processor Cores:** 450.

### Operating System
-   **Primary OS:** OSF/1, a Unix operating system variant developed by the Open Software Foundation.
-   **Alternative OS:** Tru64 UNIX (another Unix-based operating system).

### Performance
-   **Top 500 System ID:** 1892.
-   **Rmax (Measured Performance):**
    -   18.7 gigaflops (June 1995)
    -   18.7 gigaflops (November 1995)
    -   18.7 gigaflops (June 1996)
    -   18.7 gigaflops (November 1996)
    -   18.7 gigaflops (June 1997)
    -   18.7 gigaflops (November 1997)
-   **Rpeak (Theoretical Peak Performance):**
    -   22.5 gigaflops (June 1995)
    -   22.5 gigaflops (November 1995)
    -   22.5 gigaflops (June 1996)
    -   22.5 gigaflops (November 1996)
    -   22.5 gigaflops (June 1997)
    -   22.5 gigaflops (November 1997)