Hi,

  in your ctl.file, you have to do something like that: 
(define-param k-interp 9) ; number of k points to interpolate, then you will 
got in the out-put file something like that;
Initializing dielectric function...
31 k-points:
     (0,0,0)
     (0.05,0,0)
     (0.1,0,0)
     (0.15,0,0)
     (0.2,0,0)
     (0.25,0,0)
     (0.3,0,0)
     (0.35,0,0)
     (0.4,0,0)
     (0.45,0,0)
     (0.5,0,0)
     (0.5,0.05,0)
     (0.5,0.1,0)
     (0.5,0.15,0)
     (0.5,0.2,0)
     (0.5,0.25,0)
     (0.5,0.3,0)
     (0.5,0.35,0)
     (0.5,0.4,0)
     (0.5,0.45,0)
     (0.5,0.5,0)
     (0.45,0.45,0)
     (0.4,0.4,0)
     (0.35,0.35,0)
     (0.3,0.3,0)
     (0.25,0.25,0)
     (0.2,0.2,0)
     (0.15,0.15,0)
     (0.1,0.1,0)
     (0.05,0.05,0)
     (0,0,0)
  with regards

--- On Thu, 3/10/11, [email protected] <[email protected]> wrote:

From: [email protected] <[email protected]>
Subject: [MPB-discuss] [email protected] (Number of k 
points)
To: [email protected]
Date: Thursday, March 10, 2011, 9:32 AM


Hey there everyone,

do you know how to change the number ofBloch wavevectors to compute the bands 
at?
If I use:

(set! k-points (list (vector3 0 0 0)    ; Gamma
                     (vector3 0.5 0 0)  ; X
                     (vector3 0.5 0.5 0); M
                     (vector3 0 0 0)))  ; Gamma

then I get16 points where the eigenvalues are computed by the program:

(#(0 0 0) #(0.1 0.0 0.0) #(0.2 0.0 0.0) #(0.3 0.0 0.0) #(0.4 0.0 0.0) #(0.5 0 
0)#(0.5 0.1 0.0) #(0.5 0.2 0.0) #(0.5 0.3 0.0) #(0.5 0.4 0.0) #(0.5 0.5 0) 
#(0.4 0.4 0.0)#(0.3 0.3 0.0) #(0.2 0.2 0.0) #(0.1 0.1 0.0) #(0 0 0))

but is it possibile to customize the number of k-points? For instance I need 31 
k-points where to compute the eigenvalues.

Thank you in advance for paying attention,
pietro



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