[Pw_forum] (no subject)

[Alain Allouche]

Dear all,
I am trying to perform a temperature rescaling MD with PWscf

&IONS
    ion_dynamics = 'verlet'
    ion_temperature = 'rescaling'
    tempw = 500.0
    nraise = 1
    tolp = 1.d-8
    wfc_extrapolation = 'first_order'
/

The starting temperature is correct but it decreases very rapidly

358:     Starting temperature  =   500.00 K
405:     temperature           =   496.70493449 K
693:     temperature           =     0.24166052 K
903:     temperature           =     0.21332563 K
1113:     temperature           =     0.18863928 K
1323:     temperature           =     0.16711531 K
1533:     temperature           =     0.14835294 K
1743:     temperature           =     0.13194319 K
1953:     temperature           =     0.11759977 K
2163:     temperature           =     0.10503616 K
2373:     temperature           =     0.09401538 K
2583:     temperature           =     0.08433571 K
2793:     temperature           =     0.07582100 K
3003:     temperature           =     0.06832018 K
3213:     temperature           =     0.06170251 K
3423:     temperature           =     0.05585484 K
3633:     temperature           =     0.05067925 K
3843:     temperature           =     0.04609150 K
4053:     temperature           =     0.04201768 K
4263:     temperature           =     0.03839409 K
4473:     temperature           =     0.03516576 K
4683:     temperature           =     0.03228480 K

The question is: what is the printed values ? the real scaled 
temperature, the temperature "before" scaling, the difference between 
the the calculated and the wanted temperature ?
Thanks for your help

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