Open Source OpenCL Scientific/Engineering Software

MCX is a GPU-accelerated, general-purpose, physically-accurate and feature-rich 3-D light transport simulator. It is one of the fastest simulators because it can use tens of thousands of GPU threads to simulate photons in parallel.

TomoJ is an ImageJ plug-in for tomographic reconstruction. It was designed for electron tomography, however any acquisition with parallel beam should work. TomoJ proposes the preprocessing and the registration of tilt-series prior to 3D reconstructions (WBP, ART, SIRT, OS-SART, compressed sensing). TomoJ is written in Java, the computations are multithreaded and reconstruction can be performed on CPU or GPU (OpenCL). registration is described in: Journal of Structural Biology: X. 2020, Volume 4. "Improvements on marker-free images alignment for electron tomography" C.O.S. Sorzano et al. https://doi.org/10.1016/j.yjsbx.2020.100037. BMC Bioinformatics. 2009 Apr 27;10:124."Marker-free image registration of electron tomography tilt-series." C.O.S. Sorzano et al. reconstruction part was described in: BMC Bioinformatics. 2007 Aug 6;8:288. "TomoJ: tomography software for three-dimensional reconstruction in transmission electron microscopy."Messaoudi C et al

The Package is installable in GNU Octave and offers OpenCL support for parallelization of numerical computations. It is most effective for computations which are based on large vectors or n-dimensional arrays of numbers, and mostly (but not limited to) identical element-wise operations. The user can select which available OpenCL hardware and drivers are to be used. The Package offers new numeric data types with many built-in operations (e.g., overloaded operators). It is flexibly extendible by user-written OpenCL C programs. The Package does not, by itself, provide parallelization of higher numerical methods (like BLAS or LAPACK). The Package is also available from the corresponding Octave Forge webpage https://octave.sourceforge.io/ocl/index.html. More information on GNU Octave can be found at https://www.octave.org.

This kernel uses a discrete approach where the geometry is split into "atoms" at a fixed resolution (e.g. 1µm). The aim is to make full use of the parallel processing capabilities of modern graphics hardware.