{"id":63638,"date":"2020-02-17T14:40:07","date_gmt":"2020-02-17T14:40:07","guid":{"rendered":"https:\/\/\/arm-booste-lapprentissage-automatique-de-480x\/"},"modified":"2020-02-17T14:40:07","modified_gmt":"2020-02-17T14:40:07","slug":"arm-booste-lapprentissage-automatique-de-480x","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/arm-booste-lapprentissage-automatique-de-480x\/","title":{"rendered":"ARM booste l’apprentissage automatique de 480x"},"content":{"rendered":"

L’Ethos-U55 est con\u00e7u comme un acc\u00e9l\u00e9rateur de r\u00e9seau neuronal pour les microcontr\u00f4leurs. La combinaison d’Ethos-U55 et de Cortex-M55 peut fournir une am\u00e9lioration de 480x des performances d’apprentissage automatique, estime ARM.<\/span><\/p>\n

L’Ethos-U55 rejoint l’Ethos-N77, l’Ethos-N57 et l’Ethos-N37 dans la famille des NPU. Vraisemblablement, ARM fournira \u00e9galement des NPU pr\u00e9fix\u00e9s \u00abP\u00bb.<\/span><\/p>\n

Le Cortex-M55 est con\u00e7u comme un processeur de microcontr\u00f4leur autonome qui peut effectuer toutes les fonctions conventionnelles d’un microcontr\u00f4leur, mais avec une prise en charge am\u00e9lior\u00e9e pour le traitement des calculs de r\u00e9seaux de neurones artificiels et fournissant environ 15 fois plus de performances. Cela vient de l’inclusion de la technologie Helium d’ARM, qui prend en charge les math\u00e9matiques vectorielles.<\/span><\/p>\n

La technologie Arm Helium est l’extension vectorielle M-Profile Extension (MVE) pour la s\u00e9rie de processeurs Arm Cortex-M. Helium est une extension de l’architecture Armv8.1-M et offre une am\u00e9lioration des performances pour les applications d’apprentissage automatique (ML) et DSP. Le processeur Cortex-M55 est le premier processeur Arm \u00e0 prendre en charge la technologie H\u00e9lium.<\/span><\/p>\n

Arm Helium technology is the M-Profile Vector Extension (MVE) for the Arm Cortex-M processor series. Helium is an extension of the Armv8.1-M architecture and delivers a performance uplift for machine learning (ML) and DSP applications. The Cortex-M55 processor is the first Arm processor to support Helium.<\/p>\n

\u00e0 suive: un NPU encore plus performant<\/strong><\/em><\/p>\n

\n

Des instructions personnalis\u00e9es ARM seront disponibles pour \u00e9tendre les performances de t\u00e2ches sp\u00e9cifiques (voir <\/span> ARM enables custom instructions on Cortex-M<\/a>).<\/p>\n

L’arriv\u00e9e de Cortex-M55 \u00e9tendrait la capacit\u00e9 des c\u0153urs de processeur Cortex-M \u00e0 partir de la fusion de capteurs et de la d\u00e9tection de mots cl\u00e9s qu’ils peuvent faire aujourd’hui dans des domaines tels que la d\u00e9tection plus g\u00e9n\u00e9ralis\u00e9e d’anomalies et d’objets.<\/span><\/p>\n

 <\/p>\n

NPU<\/strong><\/p>\n

L’Ethos-U55 est configurable avec entre 32 et 256 unit\u00e9s de multiplication-accumulation 8×8 capables de performances 32x par rapport au Cortex-M55. Il est destin\u00e9 \u00e0 \u00eatre associ\u00e9 \u00e0 un c\u0153ur de processeur de la s\u00e9rie Cortex-M, tel que le Cortex-M55 ou d’autres, pour fournir des performances encore plus \u00e9lev\u00e9es adapt\u00e9es \u00e0 la d\u00e9tection des gestes, la reconnaissance vocale et la reconnaissance biom\u00e9trique. Il fonctionne avec une efficacit\u00e9 \u00e9nerg\u00e9tique 25 fois sup\u00e9rieure lors de l’ex\u00e9cution de ces t\u00e2ches.<\/span><\/p>\n

Pour obtenir des performances d’apprentissage automatique encore plus \u00e9lev\u00e9es, ARM pr\u00e9conise l’utilisation de l’un des c\u0153urs Ethos pr\u00e9fix\u00e9s N.<\/p>\n

Les Ethos-U55 et Cortex-M55 sont support\u00e9s par un flux de d\u00e9veloppement logiciel unifi\u00e9 qui int\u00e8gre du code embedded, des routines DSP et du code de r\u00e9seau neuronal. Il prend en charge des frameworks d’apprentissage automatique tels que TensorFlow de Google et PyTorch de Facebook, ainsi que les propres solutions d’ARM.<\/span><\/p>\n

 <\/p>\n

\"\"<\/p>\n

Table: Ethos-U55 specifications. Source: ARM Ltd.<\/strong><\/em><\/p>\n

Le premier silicium bas\u00e9 sur ces c\u0153urs est attendu au d\u00e9but de 2021 et se pr\u00e9sentera probablement sous la forme de microcontr\u00f4leurs et d’ASIC pour ou fournis par Amazon, Alif Semiconductor, Bestechnic, Cypress, Dolby, Google, NXP, Samsung et STMicroelectronics.<\/span><\/p>\n

 <\/p>\n

Related links and articles: <\/strong><\/p>\n

www.arm.com<\/a><\/p>\n

News articles:<\/strong><\/p>\n

ARM adds Ethos cores to machine learning catalogue<\/a><\/p>\n

ARM enables custom instructions on Cortex-M<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

ARM a annonc\u00e9 deux c\u0153urs de processeur – le Cortex-M55 et l’unit\u00e9 de traitement neuronal (NPU) Ethos-U55 – qui am\u00e9liorent les performances des microcontr\u00f4leurs pour les \u00e9quipements edge et embarqu\u00e9s et qui sont \u00e9galement adapt\u00e9s aux applications IoT.<\/p>\n","protected":false},"author":22,"featured_media":63639,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[883],"tags":[889,920,893,919,906,908,910],"domains":[47],"ppma_author":[1149],"class_list":["post-63638","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologies","tag-analog-fr","tag-artificialintelligence-fr","tag-authentication-encryption-fr","tag-iot-fr","tag-mpus-mcus-fr","tag-plds-fpgas-asics-fr","tag-sensing-conditioning-fr","domains-electronique-eci"],"acf":[],"yoast_head":"ARM booste l'apprentissage automatique de 480x 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