Open Source C Simulation Software

CUDA-SPHERE-FWD-MEEG is a CUDA C based toolkit which provides a GPU based implementation of the spherical model forward solution for the 306 channel Elekta Neuromag MEG system and the EEG. The 1-Sphere forward solution for the MEG and the 4-Sphere forward solution for the EEG is implemented in CUDA C and an accelerated solution is obtained using the NVIDIA GPU when the solution is calculated for a large number of dipoles (on the order of 15000 and above) and sensor locations. Speedup by a factor of 22 and 32 is obtained for the EEG and MEG solution respectively when compared to the fastest CPU implementation available in the public domain. The complete source code and pre-compiled binaries are also made available via an open source license (GPL Version 3). A CUDA enabled NVIDIA graphics card is required to use the software.

We present a Monte Carlo static light migration model (Endo-MCML) to simulate endoscopic optical spectroscopy for tubular organs such as esophagus and colon or organs lying behind tubular organs like prostate. Differ from the well-known multi-layered slab tissue model (MCML), our model employs multi-layered hollow cylinder which emitting and receiving light both from the inner boundary to meet the conditions of endoscopy. Inhomogeneous sphere can also be added in tissue layers to model cancer or other abnormal changes. The Endo-MCML is based on the MCML while some key algorithms especially the boundary hitting judgment and the reflectance/transmittance calculation are developed to meet the condition of curved boundaries. This model can be used for the forward modeling of light transport during endoscopically diffuse optical spectroscopy, light scattescattering spectroscopy, reflectance spectroscopy and other static optical detection or imaging technologies.

The openLBMflow is an fast fluid flow solver based on Lattice Boltzmann Method. Main future are 2D and 3D code, single and multiphase models, Output data in VTK format can be directly open in Paraview. Download Windows or Linux binary version now.