Уважаемые коллеги!
15 октября (среда) 2025 г. в 10:00 в конференц-зале ИНГГ СО РАН (к. 315) состоится геофизический семинар:
Организация параллельных вычислений с использованием архитектурно-ориентированных оптимизаций на примере решения трехмерной задачи сейсмики конечно-разностным методом
Научный доклад по материалам диссертации на соискание ученой степени кандидата физико-математических наук по специальности 1.2.2 – Математическое моделирование, численные методы и комплексы программ
Докладчик: Сапетина Анна Федоровна, научный сотрудник ИВМиМГ СО РАН
Научный руководитель: д.ф.-м.н Решетова Галина Витальевна
Аннотация: Работа посвящена разработке эффективных параллельных алгоритмов для трёхмерного моделирования сейсмических волн в упругих гетерогенных средах на основе конечно-разностного метода. На основе иерархической схемы распараллеливания с асинхронным обменом данными и архитектурно-ориентированными приемами оптимизации предложен алгоритм и реализующий его комплекс параллельных программ, демонстрирующий высокую производительность на современных кластерах с многоядерными CPU и GPU-ускорителями. Достигнута высокая эффективность параллельных вычислений (около 90%) при масштабировании. На примере Эльбрусского вулканического центра выполнено моделирование распространения сейсмических полей для различных сейсмогеологических сценариев, что позволило выявить влияние формы магматической камеры на структуру поля и сейсмограммы для приповерхностного профиля, подтверждая потенциал вибросейсмического мониторинга состояния вулкана.
The research focused on quantification of residual hydrocarbon resources in the West Siberian Super Basin
Scientists from IPGG SB RAS visited China to participate in a large international conference
Scientists have evaluated the suitability of groundwaters as sources of drinking water in the Arctic permafrost regions of Russia
Novel methods for numerical modeling of physical processes in geophysical applications are being developed IPGG SB RAS
Boreal ammonoid fauna: scientists from IPGG SB RAS study geographical distributions of ammonoids that lived about 240 million years ago in marine basins of the Northern Hemisphere
Uzon volcano caldera: scientists go for the world's youngest oil
Novosibirsk scientists have developed an effective algorithm for large-scale industrial applications
IPGG SB RAS researchers investigate belemnite rostra collected in northern Siberia
IPGG SB RAS scientists have developed a technique to evaluate safety of buildings and structures
Autonomous seismic stations help investigate coal seams in mines
IPGG SB RAS researchers discussed investigation of geological hazards associated with occurrence of depression zones in the areas of Gorny Altai and Caspian Basin
Early Cretaceous oysters: seminal results
IPGG SB RAS traditionally hosts a large conference on geosciences
A delegation from Peking University (PKU) visited the Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences
A multidisciplinary endeavour at the intersection of seismotectonics and geophysics will allow detection of seismically hazardous faults in mountain and high-altitude permafrost areas
A local high-resolution geomagnetic model designed and developed at IPGG SB RAS will beat foreign counterparts
Discussion on geophones
Russian scientists study thermal springs in Central Baikal Rift Zone
An ultra-high precision temperature recorder applicable to bottom water monitoring in Lake Baikal has been created
Implications of megaflood occurred tens of thousands of years ago in Altai region
Trees and shrubs assist scientists in geophysical surveys
Research focus on Yamal
Ordovician communities of photosynthetic organisms in Gorny Altai (Altai Mountains) as a research focus of a young scientist at IPGG SB RAS
IPGG SB RAS’ delegation in China: work in progress
Visitors hospitably welcomed at the Paleontological Museum of IPGG SB RAS
IPGG SB RAS specialists discussed major trends in the development of Russia’s and global fuel and energy complex
Geophysicists started testing seismic vibration monitoring system at SKIF site
A success of IPGG SB RAS ― OGRI RAS joint workshop
Young researchers from IPGG SB RAS have won prestigious Rosneft Academic Tournament
IPGG SB RAS’s continued research into geochemistry of oils and condensates from the northern and Arctic regions of Western Siberia
IPGG SB RAS researchers took part in the Ural Lithological Biennale 2024
Scientists from IPGG SB RAS continue to study sedimentary successions in Arctic regions of Western Siberia
IPGG SB RAS to unveil the phenomenon of hazardous frost heave mounds in Yamal
Siberian and Far Eastern scientists collaborate to create a conceptual model of the formation of the composition of thermal waters of Transbaikalia
Scientific Cooperation Agreement signed between IPGG SB RAS and Northwestern University (China)
A major scholar from China spoke at the seminar at IPGG SB RAS
Scientists discovered dinosaur footprints from the Cretaceous of Transbaikalia
Fossil pollen (radiometric date of 23 - 27 mln years ago) of ancestor forms of Cathaya conifers, a rare subtropical coniferous plant species, found in the Novosibirsk region
The designed at IPGG SB RAS geophysical instrument is successfully used to solve different tasks
A postgraduate student from Zimbabwe studying at Novosibirsk State University presented his PhD dissertation at the geophysical seminar at IPGG SB RAS
Scientists from three institutes studied ceramics of ancient inhabitants of the Novosibirsk region using a multidisciplinary analysis (MDA)
Scientists from IPGG SB RAS maintain fruitful cooperation with colleagues from China
Experiment conducted by Siberian scientists to determine toxicity levels in vapor-gas flows from technogenic substances (in wastes storage sites of the mining industry)
The software solution developed by a Master’s student of Novosibirsk State Technical University implemented at IPGG SB RAS
Young scientists from IPGG SB RAS actively participate in the Smart Piknik festival
A large conference convened by IPGG SB RAS to provide a platform for scientists from all over Russia to present their research works
A solemn rally in honor of Victory Day held in the Veterans Square
Yakutian and Novosibirsk scientists investigate kimberlites from the Obnazhennaya kimberlite pipe
An innovative technique for investigating tailing dumps of mining and processing plants
Tomsk Branch of IPGG SB RAS: An ambitious project on hydrogeochemistry funded by the Russian Science Foundation
