i dont know if in the ruler of this forum, ican posed my error about spex or not,
my error after the changement in the inp.xml of spex=2 nband=180 .....
ive got this error in simple example of Si

Number of MPI-tasks: 1
Number of PE/node : 1
Number of OMP-threads: 6
Most efficient MPI parallelization for:
1 2 4 8
Additional eigenvalue parallelization possible
--------------------------------------------------------
Reset of history
**************juDFT-Error*****************
Error message: BUG: can not read complex vectors from memory
Error occurred in subroutine: eig66_mem
Error from PE:0/1
*****************************************

You could also try using spex=1 and then ITERATE SR or if you like ITERATE FR in spex. This will calculate the eigenvalues within spex, so that no additional fleur run is needed. Only the potential and basis parameters are read from fleur (basis.hdf pot.hdf). https://spex.readthedocs.io/en/latest/co...ITERATE#iterate

please u found the input files and output files.
a lot thanks for u help

Hi every body
No answers about my spex question.....?????

nein, i cant understand the solution of Stefan...isnt work

I tried your input and everything work perfectly fine, except from an error in the spex input file.... You did not specify the type of ITERATE. You have to type either "ITERATE SR" or "ITERATE FR" (please refer to the linked manual for more information).

Here is the output from your inpute file with the correct usage.

Here are the input and output files. It is handy to rename the inpute to spex.inp so that it is found automatically.

Its work, a lot of thanks for all.