Dear QE expert,

I hope this email finds you well. I am writing to seek your assistance on an 
issue I encountered when using the latest version of Quantum Espresso (QE) 
v7.0. When I input the PW file for my simulation, the program encountered an 
error and crashed. Surprisingly, when I tried to use the compiled version of QE 
v6.4, the same PW file was running smoothly without any issues.

I am confused about the cause of this error and wanted to know if there are any 
compatibility issues between the two versions of QE? Moreover, the crash file 
is nothing, which made it difficult for me to detect and diagnose the error.

I would appreciate it if you could share your insights and guide me on the 
right path to identify and solve this error. Please let me know if you require 
any further information from my side.

Thank you for your time and attention.

Best regards,


the input is as follow


    calculation='scf', disk_io='low', prefix='MoB',

    pseudo_dir='./', outdir='./tmp', verbosity='high'

    tprnfor=.true., tstress=.true., forc_conv_thr=1.0d-5



    ibrav= 0,

    celldm(1) = 1.8897261328856432, ! a.u. to Angst

    nat= 3, ntyp= 2,

    occupations = 'smearing', smearing = 'gauss', degauss = 0.03

    ecutwfc= 80, ecutrho = 400,




    conv_thr = 1.0d-9

    mixing_beta = 0.8d0

    diagonalization = 'david'



  Mo 95.94  Mo.UPF

  B  10.81 B.UPF

CELL_PARAMETERS (alat=  1.88972613)

  2.948407025   0.000000000  -0.000000000

  -1.474203513   2.553395385  -0.000000000

   0.000000000   0.000000000   3.221035860


Mo       0.000000000  -0.000000000  

B        0.333333343   0.666666687  

B        0.666666627   0.333333313  

K_POINTS {automatic}

  21 21  15 0 0 0
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