<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div>Hello,</div><div> </div><div>Does a process have to own consecutive rows of the matrix? For example, suppose the global AIJ is 4x4, partitioned by 2 processes. Does process 1 have to own rows 1 and 2, process 2 own rows 3 and 4? Or process1 may own rows 1 and 3, and process 2 own row 2 and 4?</div><div> </div><div>Thanks a lot for your help!</div><div> </div><div>Regards,</div><div>Qin </div></div></body></html>