Memory issues with ANO-RCC basis


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Just Got Here
Dear all,

I had a problem in running a job using the ANO-RCC basis. After running for some hours the job fails right before starting the convergence procedure with this error:

  from getmem: mem. needed=               6802295  , mem. available=
                6660956
  texas: nerror called                   0
  ------------------------------------------------------------------------
  ------------------------------------------------------------------------
   current input line :
      0:
  ------------------------------------------------------------------------
  ------------------------------------------------------------------------
  An error occured while computing integrals
  ------------------------------------------------------------------------
  For more information see the NWChem manual at
  http://nwchemgit.github.io/index.php/NWChem_Documentation



Is this a simple memory issue or am I doing something wrong? Has anybody had similar issues?
Is there a simple solution?


This is the input:


start Er2_anorcc
 Title "Er2 LDA"

 memory total 4000 mb

 charge 0

 ...geometry...

 basis spherical
   Er library ano-rcc
   * library ahlrichs_vtz except Er
 end

 dft
   iterations 990
   convergence energy 1.0E-6
   convergence density 1.0E-5
   convergence damp 90
   convergence ncydp 350
   grid fine
   direct
   noio
   mulliken
   print "final vectors"
 end

 task dft energy