Dear developers,
I am using QE 6.2.
Normally, all the binary wfc files for each k points are all located inside prefix.save folder.
Normally, all the binary wfc files for each k points are all located inside prefix.save folder.
But I found that after running bands.x, there will be several wfc files outside prefix.save folder generated, and they are significantly larger than those wfc inside prefix.save folder. What is the purpose of generating these wfc files? Are they different from those wfc files inside prefix.save? Judging from the file size, they seems to be some kind of merged version of those wfc files inside prefix.save?
What is more, I found same behaviour when doing phonon GRID calculation( GRID_example/run_example_3).
I tested two kinds of running
I tested two kinds of running
1. The default "run_example_3" runs alas.ph.wfc.in first, then followed by running alas.ph.wfc.in.
I then check the outdir, there are wfc files located inside each _ph0/prefix.q_{i}/prefix.save. Which is the normal behaviour.
I then check the outdir, there are wfc files located inside each _ph0/prefix.q_{i}/prefix.save. Which is the normal behaviour.
2. I found that if I skip the running of alas.ph.wfc.in, and directly run alas.ph.in0. The whole process proceed correctly ( I mean bands can be found when running each $q.$irr ) . But I found there are no wfc files inside each _ph0/prefix.q_{i}/prefix.save, however there are larger wfc files located in each _ph0/prefix.q_{i}, that is outside prefix.save folder.
So I got confused. It seems that no matter wfc is located inside .save folder or outside .save folder, they can both detected correctly by QE. Am I right? Then why there are two kinds of output? Is this some kind of inconsistency?
I packed test files into a tar can be downloaded here https://drive.google.com/open?id=1rOm8V_jpAYBcCpwtgf9Czup-Cg0iSfm_
best regards
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