James: > > > I'm multiplying two dense matrices. I compared the results against MATLAB > and I am getting different results. Attached you will see a zip that > contains a .mat file that has the A, B, and C. C_MATLAB is the > multiplication of A*B in MATLAB and C is the PETSc 3.4.3 result. I also > attached the .m files A, B, and C that were saved from PETSc. Is there > something I'm doing wrong or
What is the file type of matmatmult_comparison.mat? How to read it? I need to see how it defers from C.m. any reason due to the shape of the matrices that this would fail? If it > gives any more information we convert the previous matrix that A is formed > of A2 (A = A1*A2) to dense prior to the multiplication using MatConvert. > It seems both A and B are dense, complex square matrices. Did you call MatMatMult() in sequential or parallel? What matrix format did you use? Hong
