<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Hello all<br>I am running pwscf on 10 CPU and the k points in my file is 3x6x1.<br> <br>When I use the command mpirun -np xx pw.x -npool x , how can I choose the effective number of processors and pools . I read the manual and the forum archive, but I don`t know how to choose these numbers. I`ll appreciate any help.<br>best regards<br>Ihsan Erikat<br>Physics department-Jordan University<br><br></td></tr></table><br>