If you had problem in “loop login” after execute “startx”

use:

mv .Xauthority .Xauthority.bak
in tty1 (ctrl+alt+F1)

thanks tecmint <3 .)

I have Linux server of 64 cores. 32 and 32 core each and connected. Whenever I submit a simulation job for 32 CPUs, so everything is fine. I track its process use. It shows in each line each CPU using 100~99%, and at the 3rd line %CPU=49.5. but when I submit more jobs (previous 32) + 24 CPUs, I guess it goes to the same node, and reduce the performance of the simulation.

I checked using top command. it shows in first 2-3 lines, %CPU=49.5, but there are now 54 CPUs are running with 100~99% utilization. So, my question is that what command should I type to know whether there are 2 nodes or different devices in my Linux server.

When I type the command iostat, it shows following output:

Linux3.10 (Redhatsrv) -x86_64 (64 CPU)

avg-cpu    %user     %nice   %system    %iowait     %idle
                 46.72       0.51     0.50           0.0             52.27
Device:     tps      kB_read/s   kB_wrtn/s    kB_read      kb_wrtn   
sda           4.69     1.41            79.83            969225      5493
sdb           1.23   68.00          160.22        46795308

If there are 2 device sda and sdb, then how can I submit job to sdb device, Give your expert opinion.

python is normally linked to python3, so you need.

# python -m http.server  
or
# python3 -m http.server

Include this line:

export HISTCONTROL=ignorespace;

In /etc/profile or write it directly at the command prompt

If the variable HISTCONTROL includes value “ignorespace“, lines which begin with a space character are not saved in the history list.

And for Pv — are you referring to pv (aka pipe viewer) or literally Pv?