我刚刚Rmpi
使用本教程安装:Mac OS-X Mountain Lion 上的http://www.stats.uwo.ca/faculty/yu/Rmpi/mac_os_x.htm 。我只需要 Rmpi 来使用所有内核,而不需要部署在硬件集群或类似设备上。
实际上,一切正常,但现在我体验到,每当我没有有效的互联网连接(比如坐在火车上或只是转无线)时,产卵奴隶都会失败,我想知道这是否应该像这样工作?
> require( Rmpi )
> mpi.spawn.Rslaves( nslaves=2 )
--------------------------------------------------------------------------
At least one pair of MPI processes are unable to reach each other for
MPI communications. This means that no Open MPI device has indicated
that it can be used to communicate between these processes. This is
an error; Open MPI requires that all MPI processes be able to reach
each other. This error can sometimes be the result of forgetting to
specify the "self" BTL.
Process 1 ([[56132,1],0]) is on host: ABC-MB02
Process 2 ([[56132,2],0]) is on host: ABC-MB02
BTLs attempted: self sm
Your MPI job is now going to abort; sorry.
--------------------------------------------------------------------------
2 slaves are spawned successfully. 0 failed.
[ABC-MB02:53970] 2 more processes have sent help message help-mca-bml-r2.txt / unreachable proc
[ABC-MB02:53970] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
然后我的 CPU 的负载就跳到 100%,最终 R 会话将崩溃。
有什么想法可以避免这种行为吗?这是我的sessionInfo
R version 2.15.2 (2012-10-26)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] graphics grDevices datasets stats utils methods base
other attached packages:
[1] Rmpi_0.6-3 ggplot2_0.9.3 stringr_0.6.2 reshape2_1.2.2 plyr_1.8
loaded via a namespace (and not attached):
[1] colorspace_1.2-1 dichromat_2.0-0 digest_0.6.3 grid_2.15.2 gtable_0.1.2 labeling_0.1
[7] MASS_7.3-23 munsell_0.4 proto_0.3-10 RColorBrewer_1.0-5 scales_0.2.3 tools_2.15.2