Hi all, While running my code, I have found that MatMult() returns different values depending on the number of processors I use (and there is quite the variance in the values).
The setup of my code is as follows (I can go into more depth/background if needed): -Generate parallel AIJ matrix of size NxN, denoted as A -Retrieve parallel AIJ submatrix from the last N-1 rows&columns from A, denoted as C -Generate vector of length N-1, denoted as x -Find C*x=b I have already checked that A, C, and x are all equivalent when ran for any number of processors, it is only the values of vector b that varies. Does anyone have an idea about what's going on? Thanks, Arthur
