DOI: https://doi.org/10.26089/NumMet.v16r446
Трехмерное моделирование плазмы методом частиц в ячейках на Intel Xeon Phi: оптимизация вычислений и примеры использования
Авторы
- И.Б. Мееров
-
С.И. Бастраков
- И.А. Сурмин
- А.А. Гоносков
- Е.С. Ефименко
-
А.В. Башинов
-
А.В. Коржиманов
- А.В. Ларин
- А.А. Муравьев
- А.И. Розанов
- М.Р. Савичев
Ключевые слова:
физика плазмы
метод частиц в ячейках
высокопроизводительные вычисления
Xeon Phi
оптимизация производительности
Аннотация
Рассматривается проблема эффективного использования ускорителей Xeon Phi при моделировании лазерной плазмы. Приводится анализ особенностей архитектуры Xeon Phi, влияющих на производительность кода при численном моделировании плазмы методом частиц в ячейках. Описывается параллельный программный комплекс PICADOR, оптимизированный ранее для расчетов на ускорителях. Производительность программного комплекса на Xeon Phi в сравнении с CPU исследуется при решении трех вычислительно трудоемких задач. Обсуждается соотношение времени расчета на Xeon Phi и CPU на разных этапах метода частиц в ячейках. Демонстрируется, что в зависимости от особенностей задачи Xeon Phi может как опережать, так и отставать от CPU при выполнении расчетов.
Загрузки
Опубликован
2015-08-31
Выпуск
Раздел
Раздел 1. Вычислительные методы и приложения
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