title: mpiexec throws error "mkstemp failed No such file or directory"
body: <p>I have cross compiled MPICH for Android and configured it.
  It works fine when I spawn a single process as follows</p>
  
  <pre><code>$./mpiexec -n 1  -launcher=fork  ./mpi_hello_world                             
  Hello world from processor zero, rank 0 out of 1 processors
  </code></pre>
  
  <p>However the Android System responds with following error if  parameter  "n" is greater than 1 as follows :</p>
  
  <pre><code>$./mpiexec -n 2  -launcher=fork  ./mpi_hello_world                                         
  Fatal error in MPI_Init: Other MPI error, error stack:
  MPIR_Init_thread(474).................: 
  MPID_Init(190)........................: channel initialization failed
  MPIDI_CH3_Init(89)....................: 
  MPID_nem_init(272)....................: 
  MPIDI_CH3I_Seg_commit(327)............: 
  MPIU_SHMW_Seg_create_and_attach(897)..: 
  MPIU_SHMW_Seg_create_attach_templ(610): mkstemp failed No such file or directory
  </code></pre>
  
  <p>It may be something related with name of temp file being created  on android  ? Please help.</p>