support numerical precision and env_mat

[wanghan-iapcm]

• change of numerical precision is supported
• environment matrix is supported.

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (f181a30) 75.90% compared to head (9a21db9) 75.95%.

Files	Patch %	Lines
deepmd_utils/model_format/network.py	80.00%	4 Missing ⚠️
deepmd_utils/model_format/common.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            devel    #3114      +/-   ##
==========================================
+ Coverage   75.90%   75.95%   +0.05%     
==========================================
  Files         248      250       +2     
  Lines       25141    25211      +70     
  Branches     1598     1598              
==========================================
+ Hits        19084    19150      +66     
- Misses       5118     5122       +4     
  Partials      939      939              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[njzjz]

I still have a question. Do we want to support env_mat_r in the future? The current env_mat is actually env_mat_a.

[wanghan-iapcm]

I still have a question. Do we want to support env_mat_r in the future? The current env_mat is actually env_mat_a.

To compute env_mat_r, we can cut the first column of env_mat_a out. The overhead of the extra three columns looks marginal.