{"id":16971,"date":"2025-02-06T15:22:32","date_gmt":"2025-02-06T15:22:32","guid":{"rendered":"https:\/\/pqc.es\/los-femtojulios\/"},"modified":"2026-02-23T15:40:07","modified_gmt":"2026-02-23T15:40:07","slug":"los-femtojulios","status":"publish","type":"post","link":"https:\/\/pqc.es\/en\/los-femtojulios\/","title":{"rendered":"Los Femtojulios"},"content":{"rendered":"
\n

En pasadas publicaciones (ver la era del Ángström <\/a>o superconductividad como posible solución a los tremendos presagios<\/a>) me hacía eco de la evolución en la tecnología<\/strong> que ha permitido llegar a grados de computación no imaginables hace relativamente poco tiempo. Y ello ha sido posible gracias a tres factores principales.<\/p>\n

En primer lugar, la continua innovación<\/strong> en el campo de la eficiencia de los algoritmos<\/strong>. En segundo, la disponibilidad de ingentes cantidades de datos<\/strong> con lo que entrenar las redes. Y en tercero, ocupando un lugar que no siempre le ha sido reconocido, los tremendos progresos<\/strong> en materia de eficiencia en la computación<\/strong>.<\/p>\n

Dicen fuentes de reconocida solvencia que, si la revolución de la IA continúa al ritmo actual<\/strong>, solamente en una década ya se estarán requiriendo GPUs de hasta 1 billón (trillón USA) de transistores<\/strong>, grado de integración 10 veces superior al actual<\/strong>. De hecho, entrenar un GPT-3, requiere 5.000 petaflops-día y 3 Terabytes de memoria<\/strong>.<\/p>\n

Son cifras escandalosas en lo grande que, de alguna manera, se consiguen gracias a una increíble evolución en lo pequeño y ahí es donde quería centrar este breve comentario.<\/p>\n

Estamos más o menos acostumbrados a ver progresiones del estilo de las asociadas a la Ley de Moore<\/strong> o a la Ley de Koomey<\/strong>, pero, de vez en cuando, aparecen otros conceptos que le sorprenden a uno. Este es el caso de un parámetro cuya evolución en los últimos años, y la previsión para los próximos, ha sido publicada por el fabricante de semiconductores TSMC<\/strong>. Se trata del rendimiento en eficiencia energética<\/strong>, sobre el que, así de primeras, querría hacer un par de observaciones.<\/p>\n<\/div>\n

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\n \"\"
\n <\/figure>\n<\/p><\/div>\n
\n

La primera respecto a las unidades de medida<\/strong> donde ya aparece un <\/strong>prefijo que, no por estar llamando a la puerta, que lo hacía, deja de ser sorprendente, el FEMTO (10-15<\/sup>)<\/strong> y la segunda es que entre 2025 y 2040 pasamos de un valor de 0,01 a 100<\/strong> (no quiero ni calcular el efecto multiplicador que ello ha podido suponer entre 2005 y 2040). <\/p>\n

¿A dónde vamos a llegar?<\/h3>\n

Desde luego, si voy diciendo por ahí que acabo de escribir un artículo sobre la inversa de los femtojulios por picosegundo<\/strong>, cualquiera diría que no ando bien de la chota. Igual va y resulta que tienen razón.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

M\u00e1s sobre el avance en la tecnolog\u00eda de semiconductores.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[73],"tags":[],"class_list":["post-16971","post","type-post","status-publish","format-standard","hentry","category-data-center"],"acf":[],"yoast_head":"\nLos Femtojulios | PQC<\/title>\n<meta name=\"description\" content=\"M\u00e1s sobre el avance en la tecnolog\u00eda de semiconductores.\" \/>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Los Femtojulios | PQC\" \/>\n<meta property=\"og:description\" content=\"M\u00e1s sobre el avance en la tecnolog\u00eda de semiconductores.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pqc.es\/los-femtojulios\/\" 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