REPTILES: Repeated Tiles of Sargantana, a RISC-V multicore based on OpenPiton
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2026
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| author | Oliete-Escuín, Noelia Bigas, Arnau Rodas, Narcís Aguilera, Albert Ahmad, Sajjad Balkind, Jonathan Carril, Xavier Doblas, Max Díaz, Ivan Figueras, Roger Foroodnia, Alireza Fuguet, Cesar Genovese, Ignacio Gilabert, Raúl Haghi, Abbas Kropotov, Alexander Leyva, Neiel Lostes-Cazorla, Oscar López-Villellas, Lorién Million, Davy Monemi, Alireza Pérez, Sérik Rodríguez, Juan Antonio Soria-Pardos, Víctor Salami, Behzad Moll, Francesc Palomar, Oscar Moretó, Miquel Alvarez, Lluc |
| author_facet | Oliete-Escuín, Noelia Bigas, Arnau Rodas, Narcís Aguilera, Albert Ahmad, Sajjad Balkind, Jonathan Carril, Xavier Doblas, Max Díaz, Ivan Figueras, Roger Foroodnia, Alireza Fuguet, Cesar Genovese, Ignacio Gilabert, Raúl Haghi, Abbas Kropotov, Alexander Leyva, Neiel Lostes-Cazorla, Oscar López-Villellas, Lorién Million, Davy Monemi, Alireza Pérez, Sérik Rodríguez, Juan Antonio Soria-Pardos, Víctor Salami, Behzad Moll, Francesc Palomar, Oscar Moretó, Miquel Alvarez, Lluc |
| contents | Chip industry continues advancing and expanding modern computing systems, resulting in more complex multi-core processors. Conversely, academic projects face scalability challenges due to limited resources, highlighting the need for open-source frameworks that enable innovation and knowledge sharing. Recently, several open-source proposals have emerged, offering flexible and scalable designs, but fail to meet the performance demands of modern High-Performance Computing (HPC) applications. In this project, we present REPTILES, an open-source RISC-V multicore framework based on OpenPiton\thanks. REPTILES interconnects multiple Sargantana cores with the memory hierarchy of OpenPiton. Moreover, we present the new features incorporated in Sargantana and OpenPiton designs to improve the performance of HPC applications. We demonstrate that REPTILES presents suitable scalability, achieving a speedup of 3.1x on average with 4 cores. Additionally, we show that Sargantana's new features increase the performance of vector addition benchmark in a 9.3x. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_08229 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | REPTILES: Repeated Tiles of Sargantana, a RISC-V multicore based on OpenPiton Oliete-Escuín, Noelia Bigas, Arnau Rodas, Narcís Aguilera, Albert Ahmad, Sajjad Balkind, Jonathan Carril, Xavier Doblas, Max Díaz, Ivan Figueras, Roger Foroodnia, Alireza Fuguet, Cesar Genovese, Ignacio Gilabert, Raúl Haghi, Abbas Kropotov, Alexander Leyva, Neiel Lostes-Cazorla, Oscar López-Villellas, Lorién Million, Davy Monemi, Alireza Pérez, Sérik Rodríguez, Juan Antonio Soria-Pardos, Víctor Salami, Behzad Moll, Francesc Palomar, Oscar Moretó, Miquel Alvarez, Lluc Hardware Architecture Chip industry continues advancing and expanding modern computing systems, resulting in more complex multi-core processors. Conversely, academic projects face scalability challenges due to limited resources, highlighting the need for open-source frameworks that enable innovation and knowledge sharing. Recently, several open-source proposals have emerged, offering flexible and scalable designs, but fail to meet the performance demands of modern High-Performance Computing (HPC) applications. In this project, we present REPTILES, an open-source RISC-V multicore framework based on OpenPiton\thanks. REPTILES interconnects multiple Sargantana cores with the memory hierarchy of OpenPiton. Moreover, we present the new features incorporated in Sargantana and OpenPiton designs to improve the performance of HPC applications. We demonstrate that REPTILES presents suitable scalability, achieving a speedup of 3.1x on average with 4 cores. Additionally, we show that Sargantana's new features increase the performance of vector addition benchmark in a 9.3x. |
| title | REPTILES: Repeated Tiles of Sargantana, a RISC-V multicore based on OpenPiton |
| topic | Hardware Architecture |
| url | https://arxiv.org/abs/2605.08229 |