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R2SCAN not implemented with UHF or incompatible with EOS?

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  • job314
    job314
    job314
    wrote on last edited by GiacomoAmbrogio
    #1

    I am getting into a strange error where R2SCAN keyword is not recognized whereas I used it in similar systems many times. Theo only difference is this one UHF - is it not available in UHF?

      52 H   -2.071   7.445  -3.437
     INFORMATION **** SET_MPP **** PCRYSTAL CALCULATION
     INFORMATION **** READM2 **** NEW DEFAULT: FOCK/KS MATRIX MIXING SET TO 30 %
     INFORMATION **** READM2 **** NEW DEFAULT: FULL DIRECT SCF MODE
     INFORMATION **** READM2 **** NEW DEFAULT: COULOMB BIPOLAR BUFFER SET TO 32 Mb
     INFORMATION **** READM2 **** NEW DEFAULT: EXCHANGE BIPOLAR BUFFER SET TO 32 Mb
     INFORMATION **** UHF **** SPIN POLARIZED SOLUTIONS ALLOWED
    
     *******************************************************************************
     NEW DEFAULT: DFT INTEGRATION GRID INCREASED TO XLGRID
     NEW DEFAULT: DIIS ACCELERATOR ACTIVE
     USE KEYWORD NODIIS TO TURN IT OFF
     *******************************************************************************
    
     ERROR **** RDDFTP **** KEYWORD R2SCAN       NOT RECOGNIZED
     TTTTTTTTTTTTTTTTTTTTTTTTTTTTTT ERR         TELAPSE        2.03 TCPU        0.00
    

    input_r2scan.d12

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    • GiacomoAmbrogio
      GiacomoAmbrogio
      GiacomoAmbrogio
      Developer
      wrote on last edited by
      #2

      Hi job314,

      I tried to run your input (without the RESTART keyword), and it seems to work fine.
      Can you double-check the file used for the restart? Or eventually, can you try run the code without RESTART?

      Anyway, the proper way to perform a spin-polarized calculation in DFT is to use the SPIN keyword in the DFT block instead of UHF (but technically, both should work):

      
      DFT
      SPIN
      R2SCAN
      XLGRID
      ENDdft
      [...]
      

      Giacomo Ambrogio, PhD Student
      Department of Chemistry - University of Torino
      V. Giuria 5, 10125 Torino (Italy)

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      • job314
        job314
        job314
        wrote on last edited by
        #3

        Thank you very much, that worked (but not restart)

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