【原創】MAC-OX install mpi

• install

  $ brew install open-mpi
  $ brew reinstall gcc --without-multilib
  $ sudo pip install mpi4py
  
  

• test

  $ mpirun -np 2 echo 'hello~'
  $ mpiexec -n 5 python -m mpi4py helloworld
  
  

  異常

  [zhipeng-MacBook:65764] [[47911,0],0] ORTE_ERROR_LOG: Bad parameterin file orted/pmix/pmix_server.c at line 262
  [zhipeng-MacBook:65764] [[47911,0],0] ORTE_ERROR_LOG: Bad parameterin file ess_hnp_module.c at line 666

It looks likeorte_init failed for some reason; your parallel process is
likely to abort. There are many reasons that a parallel processcan
fail during orte_init; some of which are due to configurationor
environment problems. This failure appears to be an internalfailure;
here’s some additional information (which may only be relevant toan
Open MPI developer):

pmix server initfailed

→Returned value Bad parameter (-5) instead ofORTE_SUCCESS

解決辦法

$ export TMPDIR=/tmp