Hi, Does anyone happen to meet such convergency problem? I have implemented a petsc solver to simulate driven cavity flow problem. I use petsc to solve the poisson equation. When I set the space step dx = 1 or 0.01, it works fine. However, when i tried to simulate a meso scale problem, i set dx = 0.0001, dt = 0.00001. I got a error : floating point execption..
Does anyone point me out how to solve this problem ? ong Solidification Simulation Lab, State Key Lab of Mould & Die Technology, Huazhong Univ. of Sci. & Tech. China -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20080824/b7e633c2/attachment.htm>
