<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1452594132499_5599">Good day Everybody</div><div id="yui_3_16_0_1_1452594132499_5791">I want to calculate the elastic constant of a monoclinic compound using quantum espresso on my computer, i decide to use the thermo_pw package since i do not understand any other method.</div><div id="yui_3_16_0_1_1452594132499_5818">After compiling installing the thermo_pw package with make join_qe and make thermo_pw then i decide to run the examples to see how it works but i got the following error</div><div>task #</div><div id="yui_3_16_0_1_1452594132499_5810">from mp_start_images :error #</div><div id="yui_3_16_0_1_1452594132499_5780" dir="ltr">invalid number of images, out of range</div><div id="yui_3_16_0_1_1452594132499_5819" dir="ltr"><br></div><div id="yui_3_16_0_1_1452594132499_5779" dir="ltr">and i realized thermo_pw attempt running as : mpirun -np 4 /home/agbaoyeridwanolamide/espresso-5.2.1/bin/thermo_pw.x -ni 2 -nk 1 -nd 1 -nb 1 -nt 1</div><div id="yui_3_16_0_1_1452594132499_5783" dir="ltr"><br></div><div id="yui_3_16_0_1_1452594132499_5781" dir="ltr">How do i run on my computer as i do not have access to computer clusters </div><div id="yui_3_16_0_1_1452594132499_5828" dir="ltr"><br></div><div id="yui_3_16_0_1_1452594132499_5835" dir="ltr">Agbaoye Ridwan Olamide</div><div id="yui_3_16_0_1_1452594132499_5847" dir="ltr">M.Sc. in view <br></div><div id="yui_3_16_0_1_1452594132499_5848" dir="ltr">Federal University of Agriculture Abeokuta</div><div id="yui_3_16_0_1_1452594132499_5851" dir="ltr">Nigeria<br></div></div></body></html>