我試圖讓我的本地機器上運行doMPI程序包,以便我可以在它之前對其執行測試將作業提交給羣集。我正在使用Mac OSX Yosemite並通過brew安裝了開放的mpi 2.0.2。doMPI錯誤:系統中沒有足夠的插槽可用於滿足應用程序請求的2個插槽
mpirun -V
mpirun (Open MPI) 2.0.2
Report bugs to http://www.open-mpi.org/community/help/
我已閱讀過引進了doMPI我試圖在演示
mpirun -H localhost R --slave -f sincMPI.R
不幸的是,我得到不斷收到以下錯誤執行的例子。我搜索了一下,但似乎無法弄清楚什麼可能是錯的。
> Loading required package: foreach Loading required package: iterators
> Loading required package: Rmpi
> --------------------------------------------------------------------------
> There are not enough slots available in the system to satisfy the 2
> slots that were requested by the application:
> /Library/Frameworks/R.framework/Resources/bin/Rscript
>
> Either request fewer slots for your application, or make more slots
> available for use.
> --------------------------------------------------------------------------
> Error in mpi.comm.spawn(slave = rscript, slavearg = args, nslaves =
> count, : MPI_ERR_SPAWN: could not spawn processes Calls:
> startMPIcluster -> mpi.comm.spawn -> .Call Execution halted
> -------------------------------------------------------
> Primary job terminated normally, but 1 process returned a non-zero exit code..
>Per user-direction, the job has been aborted.
> -------------------------------------------------------
> --------------------------------------------------------------------------
> mpirun 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: [[27630,1],0] Exit code: 1
編輯:基於下面
答案曾任指定的測試的結果:
mpirun -H localhost,localhost,localhost R --slave -f sincMPI.R
我從startMPIcluster()拿出數= 2,它也工作了。
startMPIcluster() #in sincMPI.R
mpirun -H localhost,localhost,localhost R --slave -f sincMPI.R
如果取出count = 2,則可以改變mpi run中的主機數量。在這裏我指定了四個主機。
startMPIcluster() #in sincMPI.R
mpirun -H localhost,localhost,localhost,localhost R --slave -f sincMPI.R
您甚至可以使用此方法來指定超過可用內核數量。我有8個(邏輯)內核,但我可以指定9個主機並運行。
mpirun -H localhost,localhost,localhost,localhost,localhost,localhost,localhost,localhost,localhost R --slave -f sincMPI.R
但是,你不能把數= 9成startMPIcluster()
startMPIcluster(count=9)
Error in startMPIcluster(count = 9) :
count must be either unspecified, or set to 8
Execution halted
所以,也許測試MPI在Mac上最好的辦法是在startMPIcluster不設定計數和使用-H來控制任務的數量?
這工作得很好,謝謝!我做了一些實驗來看MPI如何在Mac上運行。爲了記錄,我將結果放在原始問題中。 –