Dear Robert, Stefaan, Laurence, and Tomohiko, Thank you all for sharing your precious experience with me.
I first tried Stefan and Laurence's suggestion. Unfortunately, because the file at.allow is missing in the etc/at directory (I am using a machine with 8 CPUs under Mac OS X Leopard), I didn't succeed. I will ask my computer administrator to create this file and add my account name into the file. I will keep you posted of the result when it is available. I then saw Robert and Tomohiko's suggestion. I tested without the option of -p (.machines file is not set), i.e., serial mode. It worked! I now create a .machines file and run the command as nohup run_lapw -cc 0.001 -i 40 -p >& stderrout & It seems to also work. But I am not sure because Tomohiko put forward his suggestion by mentioning specifically the serial mode. Tomohiko, can you comment further? Many thanks, Jianxin -- ############################## Jian-Xin Zhu, Ph.D Theoretical Division, MS B262 Los Alamos National Laboratory Los Alamos, New Mexico 87545 Phone: (505) 667 2363 Fax: (505) 665 4063 Email (main): jxzhu at lanl.gov Email (backup): physjxzhu at gmail.com URL: http://theory.lanl.gov ##############################

