Hi, I am trying to test the linear stability solver in parallel. I did a simple test with the channel flow with a single processor and on 8 processors. I observed the following: Time taken per 1000 steps for single processor = 2.76512s Time taken per 1000 steps for 8 processors = 24.7811s I expected a reduction in the computational time while running parallel. Is there any issue in the parallel implementation of the linear stability solver? Is something related with the eigenvalue solver? I would be highly thankful for the comments on this issue. With regards Abhishek Kumar --------------------------------------------------------------------------------------- Abhishek Kumar Research Associate Applied Mathematics Research Centre Coventry University, Coventry CV1 5FB The United Kingdom Email # ac7600@coventry.ac.uk, abhishek.kir@gmail.com ---------------------------------------------------------------------------------------