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This is a website for an emerging community whose shared goal is harnessing the power of general-purpose programming of graphics processing units to accelerate data-intensive science. The Harvard-based SciGPU community shares knowledge through the site and informal seminars, as well as formal collaborations and publications.

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SciGPU-MGEMM paper accepted in `Computing in Science and Engineering'

Our recent paper, entitled, `Accelerating correlated quantum chemistry calculations using graphical processing units’, by Mark A. Watson, Roberto Olivares-Amaya, Richard G. Edgar, Tomas Arias, and Alan Aspuru-Guzik, has been accepted for the special issue of Computing in Science and Engineering, `SI:Jul/Aug 2010 – High Performance Computing with Accelerators’.

Our manuscript pre-print is available here.

Quantum chemistry

SciGPU-GEMM paper accepted in Journal of Chemical Theory and Computation

Our new article, Accelerating Correlated Quantum Chemistry Calculations Using Graphical Processing Units and a Mixed Precision Matrix Multiplication Library,” by Roberto Olivares-Amaya, Mark A. Watson, Richard G. Edgar, Leslie Vogt, Yihan Shao and Alan Aspuru-Guzik, is now available online at the JCTC website:

http://pubs.acs.org/doi/abs/10.1021/ct900543q

Abstract

Two new tools for the acceleration of computational chemistry codes using [click on link for more...]

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Mixed-precision GPU Krylov solver for lattice QCD

This is a poster that was recently presented at the NVIDIA GPU Technology Conference (GTC).

Abstract
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Using the CUDA platform we have implemented a mixed precision Krylov solver for the Wilson-Dirac matrix for lattice QCD. The matrix-vector product which accounts for the vast majority of the operations runs in excess of 130 Gflops in single precision on [click on link for more...]

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SciGPU-GEMM v0.8 Download

scigpugemm0.8 – a tarball of the v0.8 release of  the SciGPU-GEMM library.

Matrix-matrix multiplications are common in quantum chemistry calculations, and can benefit enormously from GPU acceleration. Although NVIDIA provides an implementation of the BLAS *GEMM routines with its CUDA distribution, two key problems exist when trying to use these from existing code

Most GPUs in current use have limited [click on link for more...]

Quantum chemistry

Taxol RI-MP2 acceleration with MGEMM

Taxol speedup

In our recently submitted paper (R. Olivares-Amaya et al, JCTC), the Alan Aspuru-Guzik group has presented a new implementation of the quantum chemistry method RI-MP2 (resolution-of-the-identity second-order Møller-Plesset perturbation theory) accelerated using GPUs and the MGEMM library published on this website. For the 168-atom valinomycin molecule in a cc-pVDZ basis set, we observed [click on link for more...]

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Mark Watson's talk at HaRIKEN '09, Japan

This is presentation I gave in Tokyo outlining the use of mixed-precision approaches to accelerating linear algebra in correlated quantum chemistry calculations using GPUs.

HaRIKEN is a collaboration between Harvard University and the RIKEN National Laboratory near Tokyo, Japan.

Download slides [1.49 MB]: 20090907_RIKEN