Hi<br><br>I wonder if there's any way I can speed up KSPSetUp()?<br>On larger test cases with 1e8 unknowns, it's taking more than 17 hours (and still incomplete) to execute this command across 3 processors with BoomerAMG,<br>
where as the whole setup+solving takes 2 min if the problem size is 1e6.<br><br>I've verified that the matrices has completed assembly and I'm using the non-debugging Petsc version.<br><br>Jerome<br><br>