Practical in situ Visualization on Vector Computers via Vectorized Ray-Casting Method

抄録

We have been developing VISMO, an in situ visualization library originally developed for plasma simulations. Since this library is designed for scalar computers, it performs poorly on vector computers because such architectures achieve high performance when algorithms provide long loops for vectorization. To address this limitation, we developed a new version of VISMO incorporating a ray-casting-based visualization code optimized for vector computers for scalar fields. Performance evaluation using coupled CFD and Hall MHD simulation codes demonstrates that the new implementation enables practical in situ visualization on vector computers. Furthermore, its vectorization-friendly structure design naturally allows extension of loop length, suggesting that the new implementation can serve as a practical basis for future in situ visualization tools on GPGPU-based systems.