Open MPI集群运行

部署完之后，代码也能正确跑起来了，也确实集群分散了。跑一下各种各样的代码，发现了一个错误:

$ ~/OpenMpi/bin/mpiexec  -np 10  ~/NetWorkTest
My rank is 2
My rank is 7
My rank is 0
My rank is 3
My rank is 6
My rank is 8
My rank is 4
My rank is 1
My rank is 5
-------------------------------------------------------
Primary job  terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpiexec detected that one or more processes exited with non-zero status, thus causing
the job to be terminated. The first process to do so was:

  Process name: [[18656,1],2]
  Exit code:    14
--------------------------------------------------------------------------

这份代码是什么问题导致的呢？然后我不小心把  MPF_Finalize() 函数注释掉了，那么就是说明有一个进程先错误返回了。Master 进程捕获到了。

这里反映了一个事实： 集群中如果有一个进程挂掉了，那么整个进程集都会挂掉

加回去 MPF_Finalize() 函数，这个错误就没了