Implementation and performance evaluation of reconstruction algorithms on graphics processors

Vectorization with SIMD extensions speeds up reconstruction in electron tomography

“…Although GPU programming has been facilitated in the last few years, the architectural model in SSE instructions is simpler and very well established and programming is somewhat easier. Despite the modest acceleration factors of SSE instructions compared to GPUs, the combination with code optimization has proved to yield processing times similar to those reported with GPUs (Castano-Diez et al, 2007).…”

“…Recently, graphics processor units (GPUs) have emerged as new computing platforms that offer massive SIMD parallelism and provide exceptional speedup factors (Castano-Diez et al, 2007). Although GPU programming has been facilitated in the last few years, the architectural model in SSE instructions is simpler and very well established and programming is somewhat easier.…”

High performance computing in structural determination by electron cryomicroscopy

“…Recently, the application of GPUs to reconstruction has been investigated, concluding that outstanding reduction of the computation time (60Â-80Â) is achievable (Castano-Diez et al, 2007). Although there are still some limitations (e.g.…”

Three-dimensional reconstruction using an adaptive simultaneous algebraic reconstruction technique in electron tomography

“…iterative methods) constitute one of the main alternatives to WBP in 3D reconstruction of ET, owing to their good performance in handling incomplete, noisy data. Several traditional iterative methods, such as algebraic reconstruction techniques (ART) (Marabini et al, 1998;Bilbao-Castro et al, 2009), simultaneous iterative reconstruction technique (SIRT) (Sorzano et al, 2001), component averaging methods (CAV) (Fernández et al, 2002), block-iterative CAV (BI-CAV) (Fernández et al, 2002), and simultaneous algebraic reconstruction technique (SART) (Castano-Diez et al, 2007) have all been utilized to 3D reconstruction of ET. ART enjoys a rapid convergence, however, exhibits a very noisy salt and pepper characteristic of reconstructed images.…”