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FIX: more flexible ECP format

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q-posev 2021-10-18 16:23:07 +02:00
parent 5b6d78e015
commit 8b463dbc54
1 changed files with 29 additions and 27 deletions
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@ -122,7 +122,7 @@ arrays are 0-based. Hence, we introduce the ~index~ type which is an
\[
V_A^{\text{ECP}} =
V_{A \ell_{\max}} +
\sum_{\ell=0}^{\ell_{\max} -1}
\sum_{\ell=0}^{\ell_{\max}-1}
\sum_{m=-\ell}^{\ell} | Y_{\ell m} \rangle \left[
V_{A \ell} - V_{A \ell_{\max}} \right] \langle Y_{\ell m} |
\]
@ -138,20 +138,24 @@ arrays are 0-based. Hence, we introduce the ~index~ type which is an
See http://dx.doi.org/10.1063/1.4984046 for more info.
#+NAME: ecp
| Variable | Type | Dimensions | Description |
|-----------------------+---------+------------------------------------------+----------------------------------------------------------------------------------------------|
| ~lmax_plus_1~ | ~int~ | ~(nucleus.num)~ | $\ell_{\max} + 1$, one higher than the maximum angular momentum in the removed core orbitals |
| ~z_core~ | ~float~ | ~(nucleus.num)~ | Charges to remove |
| ~local_n~ | ~int~ | ~(nucleus.num)~ | Number of local functions $N_{q \ell}$ |
| ~local_num_n_max~ | ~dim~ | | Maximum value of ~local_n~, used for dimensioning arrays |
| ~local_exponent~ | ~float~ | ~(ecp.local_num_n_max, nucleus.num)~ | $\alpha_{A q \ell_{\max}}$ |
| ~local_coef~ | ~float~ | ~(ecp.local_num_n_max, nucleus.num)~ | $\beta_{A q \ell_{\max}}$ |
| ~local_power~ | ~int~ | ~(ecp.local_num_n_max, nucleus.num)~ | $n_{A q \ell_{\max}}$ |
| ~non_local_n~ | ~int~ | ~(nucleus.num)~ | $N_{q \ell_{\max}}$ |
| ~non_local_num_n_max~ | ~dim~ | | Maximum value of ~non_local_n~, used for dimensioning arrays |
| ~non_local_exponent~ | ~float~ | ~(ecp.non_local_num_n_max, nucleus.num)~ | $\alpha_{A q \ell}$ |
| ~non_local_coef~ | ~float~ | ~(ecp.non_local_num_n_max, nucleus.num)~ | $\beta_{A q \ell}$ |
| ~non_local_power~ | ~int~ | ~(ecp.non_local_num_n_max, nucleus.num)~ | $n_{A q \ell}$ |
| Variable | Type | Dimensions | Description |
|---------------+---------+-----------------+-----------------------------------------------------------------------------|
| ~max_ang_mom~ | ~int~ | ~(nucleus.num)~ | $\ell_{\max}$ the maximum angular momentum in the removed core orbitals |
| ~z_core~ | ~float~ | ~(nucleus.num)~ | Charges to remove |
| ~num~ | ~dim~ | | Total number of ECP functions for all atoms and all values of $\ell$ |
| ~ang_mom~ | ~int~ | ~(ecp.num)~ | One-to-one correspondence between ECP items and the angular momentum $\ell$ |
| ~nucleus~ | ~index~ | ~(ecp.num)~ | One-to-one correspondence between ECP items and the atom index |
| ~exponent~ | ~float~ | ~(ecp.num)~ | $\alpha_{A q \ell}$ all ECP exponents |
| ~coefficient~ | ~float~ | ~(ecp.num)~ | $\beta_{A q \ell}$ all ECP coefficients |
| ~power~ | ~int~ | ~(ecp.num)~ | $n_{A q \ell}$ all ECP powers |
*Note for developers*: avoid having variables with similar prefix in their name.
HDF5 back end might cause issues due to the way `find_dataset` function works
in the H5LT module. For example, in the ECP group we use ~max_ang_mom~ and
~ang_mom_max~ due to this.
The latter causes issues when written before ~ang_mom~ in the TREXIO file.
#+CALL: json(data=ecp, title="ecp")
@ -159,22 +163,20 @@ arrays are 0-based. Hence, we introduce the ~index~ type which is an
:RESULTS:
#+begin_src python :tangle trex.json
"ecp": {
"lmax_plus_1" : [ "int" , [ "nucleus.num" ] ]
, "z_core" : [ "float", [ "nucleus.num" ] ]
, "local_n" : [ "int" , [ "nucleus.num" ] ]
, "local_num_n_max" : [ "dim" , [] ]
, "local_exponent" : [ "float", [ "nucleus.num", "ecp.local_num_n_max" ] ]
, "local_coef" : [ "float", [ "nucleus.num", "ecp.local_num_n_max" ] ]
, "local_power" : [ "int" , [ "nucleus.num", "ecp.local_num_n_max" ] ]
, "non_local_n" : [ "int" , [ "nucleus.num" ] ]
, "non_local_num_n_max" : [ "dim" , [] ]
, "non_local_exponent" : [ "float", [ "nucleus.num", "ecp.non_local_num_n_max" ] ]
, "non_local_coef" : [ "float", [ "nucleus.num", "ecp.non_local_num_n_max" ] ]
, "non_local_power" : [ "int" , [ "nucleus.num", "ecp.non_local_num_n_max" ] ]
"max_ang_mom" : [ "int" , [ "nucleus.num" ] ]
, "z_core" : [ "float", [ "nucleus.num" ] ]
, "num" : [ "dim" , [] ]
, "ang_mom" : [ "int" , [ "ecp.num" ] ]
, "nucleus" : [ "index", [ "ecp.num" ] ]
, "exponent" : [ "float", [ "ecp.num" ] ]
, "coefficient" : [ "float", [ "ecp.num" ] ]
, "power" : [ "int" , [ "ecp.num" ] ]
} ,
#+end_src
:END:
* Basis set (basis group)
We consider here basis functions centered on nuclei. Hence, we enable