A Hardware-Accelerated Fast Adaptive Vortex-Based Flow Simulation Software

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$100,000.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
NNX07CA24P
Award Id:
83962
Agency Tracking Number:
065913
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1800 East Garry Avenue, Suite 214, Santa Ana, CA, 92705
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
046276809
Principal Investigator:
Adrin Gharakhani
Principal Investigator
(949) 752-7545
adrin@Applied-Scientific.com
Business Contact:
Adrin Gharakhani
Business Official
(949) 752-7545
adrin@Applied-Scientific.com
Research Institute:
n/a
Abstract
Applied Scientific Research has recently developed a Lagrangian vortex-boundary element method for the grid-free simulation of unsteady incompressible laminar-turbulent flow in/around complex geometries. The evaluation of the velocities due to vortex and boundary elements, which constitute roughly 90% of the simulation cost, are accelerated via a scalably parallel adaptive fast multipole method (FMM) for distributed computing. The objective of this proposal is to incorporate hardware acceleration into the latter using a cluster of graphical processing units (GPU). During Phase I, the direct interaction component of FMM (vortex only), which constitutes roughly half the computational cost, will be offloaded onto one GPU. Feasibility will be demonstrated by achieving order-of-magnitude GPU speedup over a CPU. Phase II activities will involve the porting of the entire FMM code (for both vortex and boundary elements) onto a cluster of GPUs. The developed grid-free flow simulation software for GPU clusters is expected to provide significant price/performance improvement over traditional CPU clusters, thereby allowing simulations for larger and more physically realistic problems.

* information listed above is at the time of submission.

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