c - OpenMPI bind() 因错误地址已在使用中而失败 (48) Mac OS X

Question

我已经安装了 OpenMPI 并尝试编译/执行最新版本随附的示例之一。当我尝试使用 mpiexec 运行时，它说该地址已被使用。

有人知道为什么总是这样吗？

Kristians-MacBook-Pro:examples kristian$ mpicc -o hello hello_c.c
Kristians-MacBook-Pro:examples kristian$ mpiexec -n 4 ./hello
[Kristians-MacBook-Pro.local:02747] [[56076,0],0] bind() failed on error Address already in use (48)
[Kristians-MacBook-Pro.local:02747] [[56076,0],0] ORTE_ERROR_LOG: Error in file oob_usock_component.c at line 228
[Kristians-MacBook-Pro.local:02748] [[56076,1],0] usock_peer_send_blocking: send() to socket 19 failed: Socket is not connected (57)
[Kristians-MacBook-Pro.local:02748] [[56076,1],0] ORTE_ERROR_LOG: Unreachable in file oob_usock_connection.c at line 315
[Kristians-MacBook-Pro.local:02748] [[56076,1],0] orte_usock_peer_try_connect: usock_peer_send_connect_ack to proc [[56076,0],0] failed: Unreachable (-12)
[Kristians-MacBook-Pro.local:02749] [[56076,1],1] usock_peer_send_blocking: send() to socket 20 failed: Socket is not connected (57)
[Kristians-MacBook-Pro.local:02749] [[56076,1],1] ORTE_ERROR_LOG: Unreachable in file oob_usock_connection.c at line 315
[Kristians-MacBook-Pro.local:02749] [[56076,1],1] orte_usock_peer_try_connect: usock_peer_send_connect_ack to proc [[56076,0],0] failed: Unreachable (-12)
-------------------------------------------------------
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: [[56076,1],0]
  Exit code:    1
--------------------------------------------------------------------------

提前致谢。

Answer 1

好的。我现在已经使用 export TMPDIR=/tmp 更改了 $TMPDIR 环境变量并且它有效。

现在我觉得 OpenMPI session 文件夹阻止了我的通信。但为什么这样做呢？我在这里遗漏了什么吗？