Dear Anjana,

tbtrans can only parallel over k-points. That is to say, the Nodes you used 
should be less than the k-points you used.
Please refer to  page 99 of the manual, there is some comment on this issue 
under the option "TS.TBT.Npoints" .

Best.

Guangping
2011-07-28



Guangping Zhang



发件人: [email protected]
发送时间: 2011-07-28 03:33
主 题: [SIESTA-L] problem while executing with tbtrans
收件人: [email protected]



Dear Siesta Users 

  I am trying to execute the examples provided on this following link. 

http://www.mail-archive.com/[email protected]/msg01041.html 

I have a problem getting the output using the tbtrans. Whenever I   
execute it. a warning appear on the output file which is as follows. 

  WARNING !!!! 
> >>  Number of Nodes greater than number of k-Points !! 
> >>  Some nodes will be innactive in k-point parallelization ! 


I use a pbs script to submit the job which is as follows 

#!/bin/bash 
#PBS -q workq 
#PBS -l nodes=1:ppn=4 
#PBS -l walltime=72:00:00 
#PBS -o output_TB 
#PBS -j oe 
#PBS -N siesta-Job 


cd /work/anjana/transiesta/IV 


for i in `seq -w 0.0 0.1 1.8` 
do 

cd $i 


export NPROCS=`wc -l $PBS_NODEFILE |gawk '//{print $1}'` 


mpirun -machinefile $PBS_NODEFILE -np $NPROCS   
/home/anjana/siesta-3.0-rc2/Util/TBTrans/tbtrans < INPUT.fdf >    
OUTPUT_tbt.fdf   & # 



cd .. 

done 



what changes do I have to make to get the output... 



Anjana 




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