[Pw_forum] problems computing cholesky decomposition

Carl R LeBlond carl.leblond at iup.edu
Fri Oct 24 14:16:53 CEST 2008


Hello - I've seem to run into this cholesky error.  I've attached my 
input file below which when run on a Cray XT3 MPP gives the following 
error (pasted below).  I've tried a number of suggestions I found on 
this forum, however none of them seem to work in my case.  Even 
switching from davidson to cg did not alleviate the problem.  The 
problem began to appear after I increased my k points from 4 4 1 1 1 1 
too 8 8 8 1 1 1.  Any help would be greatly appreciated.  Probably 
something blatantly obvious to a seasoned veteran.
thanks much!
Carl

Carl LeBlond
Assistant Professor of Chemistry
Indiana University of PA
Indiana, PA 15705



......
     G cutoff =  320.4806  ( 961271 G-vectors)     FFT grid: 
(108,108,240)
      G cutoff =  160.2403  ( 339703 G-vectors)  smooth grid: ( 72, 
72,180)

      Largest allocated arrays     est. size (Mb)     dimensions
         Kohn-Sham Wavefunctions         7.00 Mb     (   5331,  86)
         NL pseudopotentials            31.24 Mb     (   5331, 384)
         Each V/rho on FFT grid          5.34 Mb     ( 349920)
         Each G-vector array             0.92 Mb     ( 120159)
         G-vector shells                 0.88 Mb     ( 115730)
      Largest temporary arrays     est. size (Mb)     dimensions
         Auxiliary wavefunctions        55.97 Mb     (   5331, 688)
         Each subspace H/S matrix        7.22 Mb     (    688, 688)
         Each <psi_i|beta_j> matrix      0.50 Mb     (    384,  86)
         Arrays for rho mixing          42.71 Mb     ( 349920,   8)

      Initial potential from superposition of free atoms

      starting charge  143.87569, renormalised to  144.00000

      negative rho (up, down):  0.750E-04 0.000E+00
      Starting wfc are  192 atomic wfcs

  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
      from  pzpotrf  : error #        49
       problems computing cholesky decomposition
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

      stopping ...






####
  &CONTROL
                        title = 'CH4 + Al(111)' ,
                  calculation = 'relax' ,
                   pseudo_dir = '/usr/users/8/leblond/pseudo/',
                   outdir = '/scratcha/leblond/' ,
                       prefix = 'Al111' ,
                      disk_io = 'default' ,
                    verbosity = 'default' ,
                      tprnfor = .true. ,
			nstep = 200 ,
  /
  &SYSTEM
                        ibrav = 0,
                    celldm(1) = 7.65339026,
                          nat = 48,
                         ntyp = 1,
                      ecutwfc = 27.0000000000 ,
                      ecutrho = 216.0000000000 ,
                        nosym = .true. ,
                  occupations = 'smearing' ,
                      degauss = 0.03 ,
                     smearing = 'methfessel-paxton' ,
  /
  &ELECTRONS
             electron_maxstep = 100,
                     conv_thr = 1.0e-08 ,
                  startingpot = 'atomic' ,
                  startingwfc = 'atomic' ,
                  mixing_mode = 'local-TF' ,
                  mixing_beta = 0.300000000 ,
                  mixing_ndim = 8,
              diagonalization = 'david' ,
             diago_david_ndim = 8,
  /
  &IONS
                 ion_dynamics = 'damp' ,	
		trust_radius_max = 0.8D0 ,
		trust_radius_ini = 0.5D0 ,
/
CELL_PARAMETERS hexagonal
2.8284271	0.0000000	0.0000000
1.4142136	2.4494897	0.0000000
2.8284271	0.8164966	-5.7735027
ATOMIC_SPECIES
    Al    26.9815  Al.pbe-rrkj.UPF
ATOMIC_POSITIONS angstrom
Al      0.000000000000000      0.000000000000000 
     0.000000000000000 0 0 0
Al      2.863782463805517      0.000000000000000 
     0.000000000000000 0 0 0
Al      5.727564927611034      0.000000000000000 
     0.000000000000000 0 0 0
Al      8.591347391416551      0.000000000000000 
     0.000000000000000 0 0 0
Al      1.431891231902759      2.480108364567967 
     0.000000000000000 0 0 0
Al      4.295673695708276      2.480108364567967 
     0.000000000000000 0 0 0
Al      7.159456159513793      2.480108364567967 
     0.000000000000000 0 0 0
Al     10.023238623319310      2.480108364567967 
     0.000000000000000 0 0 0
Al      2.863782463805517      4.960216729135935 
     0.000000000000000 0 0 0
Al      5.727564927611034      4.960216729135935 
     0.000000000000000 0 0 0
Al      8.591347391416551      4.960216729135935 
     0.000000000000000 0 0 0
Al     11.455129855222069      4.960216729135935 
     0.000000000000000 0 0 0
Al      4.295673695708276      7.440325093703902 
     0.000000000000000 0 0 0
Al      7.159456159513793      7.440325093703902 
     0.000000000000000 0 0 0
Al     10.023238623319310      7.440325093703902 
     0.000000000000000 0 0 0
Al     12.887021087124827      7.440325093703902 
     0.000000000000000 0 0 0
Al      1.431891231902759      0.826702788189322 
    -2.338268590217984 0 0 0
Al      4.295673695708276      0.826702788189322 
    -2.338268590217984 0 0 0
Al      7.159456159513793      0.826702788189322 
    -2.338268590217984 0 0 0
Al     10.023238623319310      0.826702788189322 
    -2.338268590217984 0 0 0
Al      2.863782463805517      3.306811152757290 
    -2.338268590217984 0 0 0
Al      5.727564927611034      3.306811152757290 
    -2.338268590217984 0 0 0
Al      8.591347391416551      3.306811152757290 
    -2.338268590217984 0 0 0
Al     11.455129855222069      3.306811152757290 
    -2.338268590217984 0 0 0
Al      4.295673695708276      5.786919517325257 
    -2.338268590217984 0 0 0
Al      7.159456159513793      5.786919517325257 
    -2.338268590217984 0 0 0
Al     10.023238623319310      5.786919517325257 
    -2.338268590217984 0 0 0
Al     12.887021087124827      5.786919517325257 
    -2.338268590217984 0 0 0
Al      5.727564927611034      8.267027881893224 
    -2.338268590217984 0 0 0
Al      8.591347391416551      8.267027881893224 
    -2.338268590217984 0 0 0
Al     11.455129855222069      8.267027881893224 
    -2.338268590217984 0 0 0
Al     14.318912319027586      8.267027881893224 
    -2.338268590217984 0 0 0
Al      2.863782463805517      1.653405576378645 
    -4.676537180435969 1 1 1
Al      5.727564927611034      1.653405576378645 
    -4.676537180435969 1 1 1
Al      8.591347391416551      1.653405576378645 
    -4.676537180435969 1 1 1
Al     11.455129855222069      1.653405576378645 
    -4.676537180435969 1 1 1
Al      4.295673695708276      4.133513940946612 
    -4.676537180435969 1 1 1
Al      7.159456159513793      4.133513940946612 
    -4.676537180435969 1 1 1
Al     10.023238623319310      4.133513940946612 
    -4.676537180435969 1 1 1
Al     12.887021087124827      4.133513940946612 
    -4.676537180435969 1 1 1
Al      5.727564927611034      6.613622305514579 
    -4.676537180435969 1 1 1
Al      8.591347391416551      6.613622305514579 
    -4.676537180435969 1 1 1
Al     11.455129855222069      6.613622305514579 
    -4.676537180435969 1 1 1
Al     14.318912319027586      6.613622305514579 
    -4.676537180435969 1 1 1
Al      7.159456159513793      9.093730670082547 
    -4.676537180435969 1 1 1
Al     10.023238623319310      9.093730670082547 
    -4.676537180435969 1 1 1
Al     12.887021087124827      9.093730670082547 
    -4.676537180435969 1 1 1
Al     15.750803550930344      9.093730670082547 
    -4.676537180435969 1 1 1
K_POINTS automatic
   8 8 8   1 1 1
######



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