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Fumihito Mohri
qzg00677@nifty.com

Thank you for your comment and the attached files. I found that the calculation for  test.inp which has nonvdw(1)=3,6,5,6,6,16 reached at normal end. But, a new file, tets2.inp with nonvdw(1)=3,6 gave the same result as test.inp. Could you tell me
why you added 5,6,6,16 to nonvdw(1).
One more question, there is no AUTOFV in test.inp. Is this keyword really not necessary?

Kind regards,
F. Mohri

On Tue Jul 17 '18 11:02am, Alex Granovsky wrote
-----------------------------------------------
>Dear Professor Fumihito Mohri,

>I'd strongly recommend you to recast your test job as a scan in DLC coordinates.
>DLc scans are much more numerically stable and this is recommended way
>of doing scans with modern versions of Firefly.

>Attached to this post please find modified input and output files for
>your system

>Hope this helps.

>Kind regards,
>Alex Granovsky
>
>
>
>
>
>On Mon Jul 16 '18 5:52pm, Fumihito Mohri wrote
>----------------------------------------------
>>I found a new fact for the input file of input.zmt

>>A revised file with HESS=CALC (IFREEZ(1)=10,VECT1(10)=1) do not give GRADIENT OUT OF RANGE
>>and runs normally. This job is very time consuming.  On the other hand, Hartee-Fock calculation  with  HESS=CALC (i.e.DFTTYP=B3LYP1 is deleted) is not time consuming, due to that  RECONDITIONED CONJUGATED GRADIENT SOLVER works.

>>F. Mohri
>>--------------------------------------------------------

>>On Sat Jul 14 '18 3:05pm, Fumihito Mohri wrote
>>----------------------------------------------
>>>Dear Firefly users

>>>I have tried RSURFACE calculation, using a sample file of input.zmt downloaded from
>>>the following site.

>>>http://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.htmlhttp://classic.chem.msu.su/gran/gamess/scan.html
>>>　     　　download additional samples

>>>This calculation gave extremely large gradient and then stopped abnormally(Firefly version is 8.20).

>>>    MAXIMUM GRADIENT = 29.2097047    RMS GRADIENT = 4.6972733
>>>      OPTIMIZATION ABORTED.
>>>    -- GRADIENT OUT OF RANGE
>>>    -- MAXIMUM ALLOWED FORCE (FMAXT) =   10.000

>>> ADDRESS 0x0077D6E1 HAS INITIATED PROGRAM ABORT BECAUSE OF FATAL ERROR(S)

>>>This error occurred at C5 and C6 which configure the variable of VECT1.

>>>Next, I added $SCF line written as;

>>>  $SCF DIIS=.T.  SOSCF=.F.  dirscf=.t. damp=.t. $END

>>>But, the same error as above occurred.

>>>Could you tell me how I can resolve the above problem.

>>>Best regards,
>>>F. Mohri