Space Sharing Effects on Manycore Systems
| Autor: | Seung-Jun Cha, Sung-In Jung, Yeonjeong Jeong, Seung Hyup Jeon, Ramneek, Jin Mee Kim |
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| Rok vydání: | 2019 |
| Předmět: |
Multi-core processor
Computer science Distributed computing Time-sharing 020206 networking & telecommunications 02 engineering and technology Thread (computing) Instruction set Scalability Next-generation network 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Single-core Space sharing |
| Zdroj: | 2019 21st International Conference on Advanced Communication Technology (ICACT). |
| Popis: | Computing hardware has changed from a single core to a multi-core environment, and programming technique have also shifted from a single thread to multi-threaded model. In a multicore environment where resources are limited, time sharing makes multiple application running simultaneously by using resource efficiently. However, in manycore systems, time sharing technique generates kernel noise and it results in a performance degradation. To solve this problem, this paper proposes a space sharing scheme suitable for manycore systems. Space sharing scheme consists of one core-one thread and one core-one memory, ensuring that threads executed without competing kernel resources. Through experiments, we confirmed that space sharing provides scalability compared to time sharing and reduce kernel noise. In addition, we confirmed its performance through a simple HPC application; Edge-detection. We discover that space sharing can create resource waste for I/O intensive applications, which is rather a performance degradation. This problem should be solved through I/O acceleration later. |
| Databáze: | OpenAIRE |
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