[Wien] Problem with k-parallel

[Maciej Polak]

Dear WIEN2k users and developers, 

I encountered a very strange problem. Sometimes (50/50 chance), the calculations using just k-parallel will not finish. This exact same case, when submitted again (it sometime takes more tries) finishes with no problem. Sometimes it crashes after a few iterations, sometimes after a hundred or more, and sometimes it just finishes successfully. 

This is what I get in the output: 

sed: can't read /tmp/.tmp2.mpolak.50255: No such file or directory 
cp: cannot stat `.in.tmp': No such file or directory 


There is also an error in stderr: 

forrtl: No such file or directory 
forrtl: severe (29): file not found, unit 20, file /lustre/scratch/tmp/pbs.1275300.achilles/MoS2_LDA/fort.20 
Image PC Routine Line Source  
lapw2 00000000004B3E37 Unknown Unknown Unknown 
lapw2 00000000004D5BE0 Unknown Unknown Unknown 
lapw2 000000000048140D MAIN__ 155 lapw2_tmp_.F 
lapw2 0000000000403F0E Unknown Unknown Unknown 
libc.so.6 00002B1F2CD53D5D Unknown Unknown Unknown 
lapw2 0000000000403E19 Unknown Unknown Unknown 


Do you have any idea what may be the cause of this? Running on just one CPU is always fine. There is certainly no error in my input file, because after a few tries this exact same case will eventually finish correctly. 

Thank you for your help 

Maciej Polak