Tsunami Modeling with Graphics Processing Unit（GPU）and Radial Basis Functions（RDF）

Tsunami Modeling with Graphics Processing Unit (GPU) and Radial Basis FunctionS (RDF DAVID A. YUEN JESSICA SCHMIIDT Minnesota Supercomputing Institute, University of Minnesota, Saint Scholastica College, Duluth, Minnesota Minnesota JESSICA SCHMIDT CECIL PIRET Saint Scholastica College, Duluth, Institute ofApplied Mathematics for Minnesota Geosciences, National Center ofAtmospheric Research, Boulder, Colorado ERIK O.D. SEVRE Minnesota Supercomputing SPRING LIU Institute University of Minnesota Minnesota Supercomputing Institute Minnesota University of Minnesota, Minnesota NAN ZHANG NATASHA FLYER Medical School, University of Institute ofApplied Mathematics for Minnesota Minnesota Geosciences, National Center for Atmospher Research. Boulder Colorado GRADY B. WRIGHT Dept, of Mathematics, Boise State University, Boise, Idaho

D A V I D A . Y U E N M i n n e s o t a S u p e r c o m p u t i n g I n s t i t u t e , U n i v e r s i t y o f M i n n e s o t a , M i n n e s o t a J E S S I C A S C H M I D T S a i n t S c h o l a s t i c a C o l l e g e , D u l u t h , M i n n e s o t a E R I K O . D . S E V R E M i n n e s o t a S u p e r c o m p u t i n g I n s t i t u t e U n i v e r s i t y o f M i n n e s o t a , M i n n e s o t a N A N Z H A N G M e d i c a l S c h o o l , U n i v e r s i t y o f M i n n e s o t a M i n n e s o t a G R A D Y B . W R I G H T D e p t . o f M a t h e m a t i c s , B o i s e S t a t e U n i v e r s i t y , B o i s e , I d a h o Tsunami Modeling with Graphics Processing Unit (GPU) and Radial Basis Functions (RDF) JESSICA SCHMIDT Saint Scholastica College, Duluth, Minnesota CECIL PIRET Institute of Applied Mathematics for Geosciences, National Center of Atmospheric Research, Boulder, Colorado SPRING LIU Minnesota Supercomputing Institute University of Minnesota, Minnesota NAT ASHA FLYER Institute of Applied Mathematics for Geosciences, National Center for Atmospheric Research, Boulder, Colorado

Outline Introduction to Tsunamis and Tsunami modeling Visualization of tsunamis with amira visualization package Virtues of Graphics Accelerated Board (GPu) Applications of gpu to Shallow-Water equations Radial Basis Functions (rbf) swirling Flows Applications of gpu to rbf equations Concluding remarks

Outline  Introduction to Tsunamis and Tsunami Modeling  Visualization of tsunamis with Amira visualization package  Virtues of Graphics Accelerated Board (GPU)  Applications of GPU to Shallow-Water equations  Radial Basis Functions (RBF) Swirling Flows  Applications of GPU to RBF equations  Concluding Remarks

Background

Background

What rhee unami? Soc

What is a Tsunami? (soo-NAH-mee)

Tsunami definition causes

Tsunami Definition & Causes

Wave types I Wave in the ocean Most of the waves present on the ocean surface are wind-generated waves e storms Generating earthquakes rces Wind Light Strong moon Capillary Chop Swell Seiche Tsunami Tide g 10 0 I sec sec 30 sec 5 min 12 hr 24 hr Wave period (b)IDEALIZED WAVE SPECTRUM Size and type of wind-generated waves are controlled by: Wind velocity, Wind duration, Fetch, and Original state of sea surface

Most of the waves present on the ocean’s surface are wind-generated waves. Size and type of wind-generated waves are controlled by: Wind velocity, Wind duration, Fetch, and Original state of sea surface. Wave types Wave in the Ocean

Tsunami Tsunamis consist of a series of long-period waves characterized by very long wave length(up to 100 km)and high speed (up to 760 km/hr)in the deep ocean Because of their large wave length, tsunamis are shallow-waterto intermediate-water waves as they travel across the ocean basin They only become DANGEROUS. when reaching coastal areas where wave height can reach 10 m Tsunamis originate from earthquakes, volcanic explosions, or submarine landslides

 Tsunamis consist of a series of long-period waves characterized by very long wave length (up to 100 km) and high speed (up to 760 km/hr) in the deep ocean.  Because of their large wave length, tsunamis are shallow-water to intermediate-water waves as they travel across the ocean basin.  They only become DANGEROUS, when reaching coastal areas where wave height can reach 10 m.  Tsunamis originate from earthquakes, volcanic explosions, or submarine landslides. 7-5 Tsunami

Tsunami Source ( 1) Don Davis Crawford Mader 1998 Modeling Asteroid Impact Tsunami.AIR WATER BASALT

Tsunami Source (1)

Tsunami Source(2)

Tsunami Source (2)

1 Before the earthquake Drowwzras not s scde Tsunami Source( 3) Continental crust 2 During the quake Crest 3 The wave travels 4 Collision Usual water Crest

Tsunami Source (3)