A High Performance Massively Parallel Approach for Real Time Deformable Body Physics Simulation

Farias, T.S.M. de; Almeida, Mozart William Santos; Teixeira, João Marcelo X. N.; Teichrieb, Verônica; Kelner, Judith

doi:10.1109/sbac-pad.2008.11

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…A PBR application has been evaluated to demonstrate the proposed strategies in handling real-time massively parallel nearest neighbor searches [38]. Note nonetheless, that the data structure used relies on the user specifying the subdivision number.…”

Section: Resultsmentioning

confidence: 99%

Nearest Neighbor Searches on the GPU

Leite

Teixeira

Farias

et al. 2011

Int J Parallel Prog

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We introduce a GPU grid-based data structure for massively parallel nearest neighbor searches for dynamic point clouds. The implementation provides real-time performance and it is executed on GPU, both grid construction and nearest neighbors (approximate or exact) searches. This minimizes the memory transfer between device and system memories, improving overall performance. The proposed algorithm may be used across different applications with static and dynamic scenarios. Moreover, our data structure supports three-dimensional point clouds and given its dynamic nature, the user can change the data structure's parameters at runtime. The same applies to the number of neighbors to be found. Performance comparisons were made against previous works, endorsing the benefits of our solution. Finally, we were able to develop a real-time Point-Based Rendering application for validation of the data structure. Its drawbacks and data distribution's impact on performance were analysed and some directions for further investigation are given.

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Section: Resultsmentioning

confidence: 99%

Nearest Neighbor Searches on the GPU

Leite

Teixeira

Farias

et al. 2011

Int J Parallel Prog

Self Cite

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“…PRT 시스템 관련 ITS 분야 및 V2X 통신 기술 [5,6] . 이러한 PRT 기술을 지원한다 [16] . 따라서, VR 시뮬레이터의 실시 간 처리 성능 요구에 따른 기술적 대응이 가능하다.…”

Section: Driving Control Systemunclassified

A VR-Based Integrated Simulation for the Remote Operation Technology Development of Unmanned-Vehicles in PRT System

Park¹,

Kim

Ok³

et al. 2013

The Journal of Korea Information and Communications Society

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Personal Rapid Transit(PRT), which is one of the next generation convergence transport technology, PRT system requires operation technology for controlling diverse vehicles and dealing with a variety of abnormal driving situations on a large scale trackway structures in expected operational area more efficiently and reliably.Before developing PRT control technology, it is essential that multiple testing procedures stepwise with building small scale test-tracks and develop real unmanned-vehicles. However, it is expected that the experiments demand huge amount of time and physical cost. Thus, simulation in virtual environment is efficient to develop wireless based control technology for multiple PRT vehicles prior to building real-test environment. In this paper, we propose a VR-based integrated simulator which physics engine is applied so that it enables simulation of front-wheel-steering PRT system rather than simple rail track system. The proposed simulator is also developed that it can reflect geographical features, infrastructures and network topology of expected driving region.

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“…Parallel linear and corotational finite element methods are also described [25]. Many recent works, such as [12], focus on using the GPU as a parallel processor for computing deformations. Thomaszewski et al describe parallel methods for collision detection and time integration for physics simulation [39].…”

Section: Related Workmentioning

confidence: 99%

A pipeline virtual environment architecture for multicore processor systems

Acosta¹,

Liu²

2011

Vis Comput

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We present a novel architecture to develop Virtual Environments (VEs) for multicore CPU systems. An objectcentric method provides a uniform representation of VEs. The representation enables VEs to be processed in parallel using a multistage, dual-frame pipeline. Dynamic work distribution and load balancing is accomplished using a thread migration strategy with minimal overhead. This paper describes our approach, and shows it is efficient and scalable with performance experiments. Near linear speed-ups have been observed in experiments involving up to 1,000 deformable objects on a six-core i7 CPU. This approach's practicality is demonstrated with the development of a medical simulation trainer for a craniotomy procedure.

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A High Performance Massively Parallel Approach for Real Time Deformable Body Physics Simulation

Cited by 5 publications

References 10 publications

Nearest Neighbor Searches on the GPU

Nearest Neighbor Searches on the GPU

A VR-Based Integrated Simulation for the Remote Operation Technology Development of Unmanned-Vehicles in PRT System

A pipeline virtual environment architecture for multicore processor systems

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