My 2D Hydrodynamic GPU code is over an order of magnitude faster than CPU codes (its source is available on GitHub). It is wasteful if I do not apply it to study some (astro-) physical problems. It turns out that, by introducing a simple -term, the […]
I used to maintain a couple BibTeX files for my research. Although there are tools to manage them, I still found it pretty painful. Because ADS has almost all astrophysics papers, it may be a good idea to give up my own BibTeX database and generate them from ADS whenever I need them.
Advances in visualization technologies are not only vital for the expression and creativity in Hollywood, they are also one of the necessary ingredients to catapult scientific innovations. Without them, for example, astrophysicists such as myself and the team of scientists working on the Event Horizon Telescope cannot achieve our multi-billion dollar purpose — to understand and image the […]
I put up a new paper “GRay: a Massively Parallel GPU-Based Code for Ray Tracing in Relativistic Spacetimes” on arXiv. Here is the abstract:
We introduce GRay, a massively parallel integrator designed to trace the trajectories of billions of photons in a curved spacetime. This GPU-based integrator employs the stream processing paradigm, is implemented […]
I put up a new paper “On Hydromagnetic Stresses in Weakly Magnetized Stellar Boundary Layers” on arXiv. Here is the abstract:
We examine the generation of hydromagnetic stresses and energy density in the boundary layer around a weakly magnetized star in the shearing-sheet approximation. This region, where the angular frequency is expected to increases […]