As Herb Sutter announced in his blog the ISO committee has approved a new C++ standard C++11. I expect that compilers will adopt this standard timely. Many features of the new standard had been implemented long before it was approved. C++11 will make modern C++ programming much more easy.
A new version of TRNG (Tina’s Random Number Generator Library) has been released. TRNG may be utilized in sequential as well as in parallel Monte Carlo simulations. It does not depend on a specific parallelization technique, e.g., POSIX threads, MPI or others. The new version 4.12 is a bug fix and maintenance release. If you… Continue reading New TRNG release
In a recent paper (see arXiv:1012.3911) we showed how to solve the time-dependent Schrödinger equation and the time-dependent Dirac equation by a Fourier split operator method on GPU hardware. For the Fourier split operator method one has to compute a fast Fourier transform (FFT) in each time step and the FFT dominates the overall computing… Continue reading GPU FFT performance
In past postings I wrote on fast Fourier transform (FFT) performance and on GPU computing. In a new project both topics meet. We evaluated the FFT performance on GPUs. We found performance gains of more than one order of magnitude as compared to traditional (non-parallel) CPU codes. The FFT is a core algorithm that finds… Continue reading Accelerating the Fourier split operator method
A new version of TRNG (Tina’s Random Number Generator Library) has been released. TRNG may be utilized in sequential as well as in parallel Monte Carlo simulations. It does not depend on a specific parallelization technique, e.g., POSIX threads, MPI or others. As an outstanding new feature of the latest TRNG release 4.11 it also… Continue reading New TRNG release
A few days ago, I started to gather a survey on GPU computing literature. The survey is non-exhaustive and has strong bias to computational physics applications. However, it might be useful for other GPU computing enthusiasts as well. Therefore, I publish my survey in this post. The list will be updated from time to time.… Continue reading GPU computing literature
A new version of TRNG (Tina’s Random Number Generator Library) has been released. For the new version TRNG 4.10 two additional random number distribution classes twosided_exponential_dist and truncated_normal_dist have been implemented. If you need a modern C++ random number generator library, check out TRNG 4.10.
From time to time students ask me what might be the best programming language for computational physics and numerical applications. For a long time my standard answer to this question was twofold: The language does not matter, learn C++! On the one hand, I think one should not bother to much with this issue because… Continue reading Scientific Python
Would you like to test your parallel programming skills? Then you might participate in the Intel Threading Challenge 2010 and demonstrate your skills in one of two levels of participation. Apprentice level gives programmers new to multithreading and parallelism. Master level targets developers with multithreading experience. Problem 1 of the 1st phase in Apprentice level… Continue reading Intel Threading Challenge 2010
A new version of TRNG (Tina’s Random Number Generator Library) has been released. New features of TRNG 4.9 include: A new random number distribution class hypergeometric_dist and a new random number engine class mlcg2_64 have been implemented. Performance improvements for split methods of the classes lcg64 and lcg64_shift. The computational complexity has been reduced from… Continue reading New TRNG release