Can you give some information about how you are running your program, such as:

Parallel or serial?
Threaded or not?
Which compiler are you using?
Which MPI implementation (if parallel) and how many processors on how many 
nodes?
Which BLAS?

By step, do you mean 3 CG steps or 3 scf steps in three days?

Can you look at the CLOCK file and let us know the average time between SCF 
steps.

Daniel J. Backlund
Texas Tech University - Physics
daniel.backl...@ttu.edu
________________________________________
From: min gao [gaomin1...@gmail.com]
Sent: Monday, January 11, 2010 8:03 PM
To: siesta-l@uam.es
Subject: [SIESTA-L] the program run slowly, 3days 3 steps

Dear all,
I want to calculate the Au(111) 3X3 4layer structure. But It runs so slowly 
that it costs 3 days for only 3 steps. I think  maybe there is something wrong 
in the input file. Can you help me to check it. I am not sure what wrong it is. 
Thank you very much

--
Min Gao

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