Abstract:

In order to decrease the simulating time and getting more detailed simulating results, this article implements a parallel biconjugate gradient stabilized method on GPU. The solver was integrated to TOUGHREACT and used in the numerical simulation of underground multiphase flow on GPU. CUDA implementing methods for sparse matrixvector multiplication and vector innerproduct are given in this paper. The experimental results show that GPU can speed up the process of solving the underground multiphase flow simulation. On different scales of simulation grids, the speed was increased by 1.7—3.4 times.

Key words: GPGPU, parallel computing, multiphase flow simulation