From the monthly archives: April 2011

When Security is Overdone

By On April 28, 2011 · Leave a Comment

There are couple ways to create password-less access to remote machines. The most popular method is to use ssh public key authentication. A less known but more powerful method is Kerberos. Indeed, in Mac OS X, Kerberos is often used implicitly.

However, the are computer centers that 1) disable public key authentication [...]

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Kelvin–Helmholtz Instability

2D Hydrodynamic Code on GPUs

By On April 12, 2011 · 2 Comments

I spent couple weeks implementing a simple 2D hydrodynamic code in CUDA C, which is a technology developed by nVidia. The compiled code runs on the GPU instead of CPU. The code uses Fourier spectral method with the 2/3 dealiasing rule and 4-th order Runge-Kutta integrator [...]

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BibTeX Generation

By On April 3, 2011 · Leave a Comment

I used to maintain a couple BibTeX files for my research. Even though there are tools to manage them, I still found it pretty painful. Because ADS has almost all astrophysical papers, it may be a good idea to give up my own BibTeX database and generate them from [...]

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