[re-grades-02.exp.synchrotron-soleil.fr:2748165] Error: Unable to get the user home directory
[re-grades-02.exp.synchrotron-soleil.fr:2748165] Error: Unable to get the user home directory
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It looks like opal_init failed for some reason; your parallel process is
likely to abort.  There are many reasons that a parallel process can
fail during opal_init; some of which are due to configuration or
environment problems.  This failure appears to be an internal failure;
here's some additional information (which may only be relevant to an
Open MPI developer):

  mca_base_var_init failed
  --> Returned value -1 instead of OPAL_SUCCESS
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Failed initializing opal: -1