AxRAM: a lightweight implicit interface for approximate data access
O arquivo disponibilizado é a versão Preprint do artigo publicado na Elsevier.
| Principais autores: | Fabrício Filho, João, Felzmann, Isaías Bittencourt, Azevedo, Rodolfo Jardim de, Wanner, Lucas Francisco |
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2021
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http://repositorio.utfpr.edu.br/jspui/handle/1/23851 https://doi.org/10.1016/j.future.2020.07.029 |
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riut-1-238512021-01-18T21:11:06Z AxRAM: a lightweight implicit interface for approximate data access Fabrício Filho, João Felzmann, Isaías Bittencourt Azevedo, Rodolfo Jardim de Wanner, Lucas Francisco Tolerância a falha (Computadores) Arquitetura de computador Computação Energia - Consumo Tolerância a falha (Computadores) Computer architecture Computer science Energy consumption CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO O arquivo disponibilizado é a versão Preprint do artigo publicado na Elsevier. Approximate memories expose data elements to errors in order to improve energy efficiency. For a large fraction of data, these errors are inconsequential or lead only to small losses in application output quality. Nevertheless, for some critical data, errors may lead to execution flow crashes, resulting in non-produced outputs and wasted computational and energy resources. Thus, these techniques require some level of control over approximations to generate acceptable outputs and, consequently, to maximize the energy benefits. Many proposed interfaces for approximate memories rely on burdensome instrumentation of the program or on user annotations to protect critical data. We present AxRAM, a lightweight interface for approximate data that avoids crashes without user annotations. AxRAM relies on a memory with configurable reliability levels and protects from errors critical data regions commonly found on a number of applications. Furthermore, our interface implements a resilient addressing scheme that reduces invalid data accesses that lead to execution crashes. In an embedded computing scenario with a dual-VDD SRAM, our implementation of AxRAM reduces 51% of the execution crashes compared to an unprotected approximate memory, resulting in energy savings for 9 out of 12 profiled applications. 2021-01-14T15:06:45Z 2022-07-18 2021-01-14T15:06:45Z 2020-12 article FABRÍCIO FILHO, João; FELZMANN, Isaías B.; AZEVEDO, Rodolfo J.; WANNER, Lucas F. AxRAM: a lightweight implicit interface for approximate data access. Future Generation Computer Systems, v. 113, n. 1, p. 556-570, 2020. DOI: https://doi.org/10.1016/j.future.2020.07.029. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0167739X20301060?via%3Dihub. Acesso em: 28 dez. 2020. 1872-7115 http://repositorio.utfpr.edu.br/jspui/handle/1/23851 https://doi.org/10.1016/j.future.2020.07.029 eng Future Generation Computer Systems https://www.sciencedirect.com/science/article/abs/pii/S0167739X20301060?via%3Dihub embargoedAccess https://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Campo Mourao Estados unidos |
| institution |
Universidade Tecnológica Federal do Paraná |
| collection |
RIUT |
| language |
Inglês |
| topic |
Tolerância a falha (Computadores) Arquitetura de computador Computação Energia - Consumo Tolerância a falha (Computadores) Computer architecture Computer science Energy consumption CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO |
| spellingShingle |
Tolerância a falha (Computadores) Arquitetura de computador Computação Energia - Consumo Tolerância a falha (Computadores) Computer architecture Computer science Energy consumption CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO Fabrício Filho, João Felzmann, Isaías Bittencourt Azevedo, Rodolfo Jardim de Wanner, Lucas Francisco AxRAM: a lightweight implicit interface for approximate data access |
| description |
O arquivo disponibilizado é a versão Preprint do artigo publicado na Elsevier. |
| format |
Artigo |
| author |
Fabrício Filho, João Felzmann, Isaías Bittencourt Azevedo, Rodolfo Jardim de Wanner, Lucas Francisco |
| author_sort |
Fabrício Filho, João |
| title |
AxRAM: a lightweight implicit interface for approximate data access |
| title_short |
AxRAM: a lightweight implicit interface for approximate data access |
| title_full |
AxRAM: a lightweight implicit interface for approximate data access |
| title_fullStr |
AxRAM: a lightweight implicit interface for approximate data access |
| title_full_unstemmed |
AxRAM: a lightweight implicit interface for approximate data access |
| title_sort |
axram: a lightweight implicit interface for approximate data access |
| publisher |
Campo Mourao |
| publishDate |
2021 |
| citation |
FABRÍCIO FILHO, João; FELZMANN, Isaías B.; AZEVEDO, Rodolfo J.; WANNER, Lucas F. AxRAM: a lightweight implicit interface for approximate data access. Future Generation Computer Systems, v. 113, n. 1, p. 556-570, 2020. DOI: https://doi.org/10.1016/j.future.2020.07.029. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0167739X20301060?via%3Dihub. Acesso em: 28 dez. 2020. 1872-7115 |
| url |
http://repositorio.utfpr.edu.br/jspui/handle/1/23851 https://doi.org/10.1016/j.future.2020.07.029 |
| _version_ |
1805315314656739328 |
| score |
10,814766 |