Hi, I am trying to install MPICH2 in my PC (running widows 7, 64 bit). I have tried with the following versions, but I couldn't do a successful installation. MPICH2-1.0.6p1-win32-ia32 MPICH2-1.4.1p1-win-ia32 MPICH2-1.4.1p1-win-x86-64 MPICH2-1.0-1-win32-ia32 Administrator command prompt used. I have added C:\Program Files\MPICH2\bin" to system Path Control panel- Administrative tools-Services shows MPICH2 but it doesn't show SMPD. SMPD -status just hangs at the command prompt. Following is an output of SMPD -status -d for you information. What am I missing?. How do I get this going? Thank you for your advice in advance. Regards, Sam C:\>smpd -status -d [-1:3564]..\smpd_get_opt_int [-1:3564]../smpd_get_opt_int [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt_int [-1:3564]../smpd_get_opt_int [-1:3564]..\smpd_get_opt_int [-1:3564]../smpd_get_opt_int [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_hostname [-1:3564]../smpd_get_hostname [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt_string [-1:3564]../smpd_get_opt_string [-1:3564]..\smpd_get_opt [-1:3564]../smpd_get_opt [-1:3564]..\smpd_do_console [-1:3564]...\smpd_get_smpd_data [-1:3564]....\smpd_get_smpd_data_from_environment [-1:3564]..../smpd_get_smpd_data_from_environment [-1:3564].../smpd_get_smpd_data [-1:3564]...\SMPDU_Sock_create_set no smpd running on PC [00:3564].../smpd_do_console [00:3564]...\smpd_exit [00:3564]....\smpd_kill_all_processes [00:3564]..../smpd_kill_all_processes [00:3564]....\smpd_finalize_drive_maps [00:3564]..../smpd_finalize_drive_maps C:\>