[Wien] Low cpu usage on open-mosix Linux cluster

[EB Lombardi]

Dear Wien users

When I run Wien2k on a Linux-openMosix cluster, lapw1 and lapw2 (k-point 
parallel) processes mostly use a low percentage of the available CPU 
time. Typically only 10-50% of each processor is used, with values below 
10% and above 90% also occuring. On the other hand single processes, 
such as lapw0, etc, typically use 99.9% processor power of one 
processor. On each node, (number of jobs) = (number of processors).

This low CPU utilizatioin does not occur on a dual processor linux 
machine, where cpu utilization is mostly 99.9%.

Any suggestions on improving the CPU utilisation of lapw1c and lapw2 on 
mosix clusters would be appreciated.

Regards

Enrico Lombardi