1. 12 Feb, 2016 1 commit
  2. 23 Nov, 2015 1 commit
    • degironc's avatar
      linear algebra parallelization made independend of its parent communicator by · 1e68dc9e
      degironc authored
      introducing ortho_parent_comm to be used when addressing the whole group.
      linear algebra is now distributed (in PW) inside the pool group (in CPV is left unchanged... are there pools in CPV?). 
      mp_global sets ortho_comm as a sub-communicator of intra_pool_comm (used to be intra_bgrp_comm). It can be reverted 
      to previous choice by commenting/uncommenting one line
      
      tested on PW/example02 co.rx.in case (both Gamma and K=(000)) with 
        -np 8 -nd 4 -nb 2
      that is using 2 bgrp (procs 0123 and 4567) and diagonalizing on 4 procs (0246).
      tested also on 
        -np 4 -nd 4 -nb 2
      that is using 2 bgrp (procs 01 and 34) and diagonalizing on 4 procs (0123).
      
      some bgrp parallelization added to a few routines. global variables (evc,..) are NOT distributed but some local ones
      are and more could be done.
      
      
      
      
      git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/[email protected] c92efa57-630b-4861-b058-cf58834340f0
      1e68dc9e
  3. 07 Mar, 2014 1 commit
  4. 12 Jan, 2014 1 commit
  5. 11 Jan, 2014 1 commit
  6. 27 Sep, 2013 1 commit
  7. 26 Sep, 2013 1 commit
  8. 29 Jan, 2013 1 commit
  9. 28 Jan, 2013 1 commit
    • giannozz's avatar
      Module mp_global split into more modules, one per parallelization level. · aca32a50
      giannozz authored
      Module mp_global is still there for compatibility and still contains the
      routine mp_startup that performs the intialization, but shouldn't be any
      longer used in new developments and should be slowly replaced by specific
      modules. New module containing command-line options added. Command-line
      options are read at the beginning of the run and broadcast to all processors
      (there is no guarantee that command-line options cam be accessed by all mpi
       processes). Nothing should be broken by these changes but please verify if
      all parallelization levels work (I have limited access to parallel machines
      right now)
      
      The reason for these changes, and for those that will come soon, is to make
      image parallelization easier (in particular in NEB but also for other cases). 
      Right now it is a pain, in part because the initialization is inadequate,
      in part because it is never clear who reads/writes what from/to where.
      It will take a few weeks before everything converges to a stable state.
      Meanwhile, please be patient and fix/report problems.
      
      
      
      git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/[email protected] c92efa57-630b-4861-b058-cf58834340f0
      aca32a50