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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.12677 |
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| _version_ | 1866929762101886976 |
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| author | Siyadatzadeh, Roozbeh Ansari, Mohsen Shafique, Muhammad Ejlali, Alireza |
| author_facet | Siyadatzadeh, Roozbeh Ansari, Mohsen Shafique, Muhammad Ejlali, Alireza |
| contents | Embedded systems power many modern applications and must often meet strict reliability, real-time, thermal, and power requirements. Task replication can improve reliability by duplicating a task's execution to handle transient and permanent faults, but blindly applying replication often leads to excessive overhead and higher temperatures. Existing design-time methods typically choose the number of replicas based on worst-case conditions, which can waste resources under normal operation. In this paper, we present RL-TIME, a reinforcement learning-based approach that dynamically decides the number of replicas according to actual system conditions. By considering both the reliability target and a core-level Thermal Safe Power (TSP) constraint at run-time, RL-TIME adapts the replication strategy to avoid unnecessary overhead and overheating. Experimental results show that, compared to state-of-the-art methods, RL-TIME reduces power consumption by 63%, increases schedulability by 53%, and respects TSP 72% more often. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_12677 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | RL-TIME: Reinforcement Learning-based Task Replication in Multicore Embedded Systems Siyadatzadeh, Roozbeh Ansari, Mohsen Shafique, Muhammad Ejlali, Alireza Machine Learning Systems and Control Embedded systems power many modern applications and must often meet strict reliability, real-time, thermal, and power requirements. Task replication can improve reliability by duplicating a task's execution to handle transient and permanent faults, but blindly applying replication often leads to excessive overhead and higher temperatures. Existing design-time methods typically choose the number of replicas based on worst-case conditions, which can waste resources under normal operation. In this paper, we present RL-TIME, a reinforcement learning-based approach that dynamically decides the number of replicas according to actual system conditions. By considering both the reliability target and a core-level Thermal Safe Power (TSP) constraint at run-time, RL-TIME adapts the replication strategy to avoid unnecessary overhead and overheating. Experimental results show that, compared to state-of-the-art methods, RL-TIME reduces power consumption by 63%, increases schedulability by 53%, and respects TSP 72% more often. |
| title | RL-TIME: Reinforcement Learning-based Task Replication in Multicore Embedded Systems |
| topic | Machine Learning Systems and Control |
| url | https://arxiv.org/abs/2503.12677 |