SymSparseLinSolver: error in factorization

eroz · Post by **eroz** » Sat Jul 21, 2007 12:24 pm

Getting the following error:

In SymSparseLinSolver: error in factorization.
WARNING NewtonRaphson::solveCurrentStep() -the LinearSysOfEqn failed in solve()
StaticAnalysis::analyze() - the Algorithm failed at iteration: 0 with domain at load factor 0.1
OpenSees > analyze failed, returned: -3 error flag

Any help on what might be leading to it will be appreciated. Thanks.

Post by **fmk** » Mon Jul 23, 2007 10:34 am

try a different solver. suggest ProfileSPD, if you
get an error about 0 or neg on the diagional you have some rigid body modes still in your model and you need to look at your boundary conditions.

eroz · Post by **eroz** » Tue Jul 24, 2007 9:42 am

Thank you, I appreciate it. It turns out the problem was rigid body motion.