Date post: | 06-Jul-2015 |
Category: |
Business |
Upload: | denniskempin |
View: | 306 times |
Download: | 6 times |
Interactive Particle Tracing with Cumulative Blood Damage
Computation for Ventricular Assist Devices
Dennis Kempin, Peter Schumacher,
Gernot Ziegler, Tobias Rick
Abstract
DeBakeyVentricular Assist Device
Hydraulik
Hematologie
Motivation?
Arora et alA Tensor-Based Measure
for Estimating Blood Damage
Hentschel et alInteractive blood damage analysis for
ventricular assist devices
Goal:Fully interactive particle seeding
Technology
Implementation
Traditional SV
GPU based SV
Hemolysis
Tensor
Hemolysis
Eigenvectors
Velocity
Gradient
Reduce Complexity
Cartesian Grid
Lower level Integration
Frameskipping
Single-precision float
Specialized Eigensolver
Results
My Home Computer:
G96b = $50
65.000 particles
In realtime
Numeric Instabilities!
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
256 1024 4096 16384 65536
Tracing only Tracing with hemolysis
(million)Integrations per second
67
GPU Peak PerformanceGflops
9500GT
67 1700
GPU Peak PerformanceGflops
9500GT GTX 295
Improve Accuracy
Tetraedal Grid
Higher level Integration
Memory Streaming
Double-precision float
More accurate eigensolver
Thank you for your attention!
Any Questions?