=== RELION MPI setup ===
 + Number of MPI processes             = 10
 + Leader  (0) runs on host            = lbem-gpu4.epfl.ch
 + Follower     1 runs on host            = lbem-gpu4.epfl.ch
 + Follower     2 runs on host            = lbem-gpu4.epfl.ch
 + Follower     3 runs on host            = lbem-gpu4.epfl.ch
 + Follower     4 runs on host            = lbem-gpu4.epfl.ch
 + Follower     5 runs on host            = lbem-gpu4.epfl.ch
 + Follower     6 runs on host            = lbem-gpu4.epfl.ch
 + Follower     7 runs on host            = lbem-gpu4.epfl.ch
 + Follower     8 runs on host            = lbem-gpu4.epfl.ch
 + Follower     9 runs on host            = lbem-gpu4.epfl.ch
 =================
 Extracting particles from the micrographs ...
000/??? sec ~~(,_,">                                                          [oo]
   3/  18 sec ..........~~(,_,">
   4/  12 sec ...................~~(,_,">
   6/  12 sec ..............................~~(,_,">
   8/  12 sec .......................................~~(,_,">
  12/  14 sec ..................................................~~(,_,">
  17/  17 sec ............................................................~~(,_,">

 Joining metadata of all particles from 41 micrographs in one STAR file...
 The pixel size of the extracted particles in optics group 1 is 1.464 Angstrom/pixel.
 Written out STAR file with 3556 particles in Extract/job008/particles.star
 Done preprocessing!