Dear Duncan,
Rich Calaway helped me narrowing down the error. The problem is that I can't
execute the line
cl<- makeCluster(mpi.universe.size(), type ="MPI")
when I am connected via VPN. Rich finally suggested to post this on R-SIG-HPC,
which I did a couple of minutes ago.
Cheers,
Marius
On 2011-03-13, at 23:12 , Marius Hofert wrote:
> Dear Duncan,
>
> thanks for your suggestion. I contacted "REvolution Computing" on this
> behalf.
> Rmpi and rlecuyer are loaded automatically, so they are not explicitly needed
> in the minimal example.
> I'll post the answer (if I receive one).
> It's quite an annoying problem if you frequently work on a server.
>
> Cheers,
>
> Marius
>
> On 2011-03-13, at 13:26 , Duncan Murdoch wrote:
>
>> On 11-03-13 4:34 AM, Marius Hofert wrote:
>>> Dear expeRts,
>>>
>>> This is a similar post as on R-SIG-MAC [I didn't receive an answer there;
>>> not sure if it was the right place to post either].
>>>
>>> I'm running R version 2.12.1 (Platform: x86_64-apple-darwin9.8.0/x86_64
>>> (64-bit))
>>> on a MacBook Pro under Mac OS X 10.6.6. The following minimal example runs
>>> fine
>>> under this setup. However, if I am connected to a server via a VPN client
>>> [Cisco AnyConnect; same with Apple's internal VPN connection], then the
>>> minimal
>>> example hangs and just does not do anything. The "red button" in the R
>>> Console
>>> is dark red [normal behavior if R is running], so R tries to do something,
>>> but
>>> cannot succeed. CPU goes up to 100%... Same happens if I start the job from
>>> the
>>> command line via R CMD BATCH. What's going on? Is this a known issue?
>>>
>>> Cheers,
>>>
>>> Marius
>>>
>>> library(doSNOW)
>>> library(Rmpi)
>>> library(rlecuyer)
>>> library(foreach)
>>
>> You're using 4 different contributed packages here. Do you really need all
>> of those? If so, it's going to be hard to debug.
>>
>> I'd suggest trying to determine the last successful call, and the first
>> unsuccessful one, then take this up with the maintainer of the package that
>> fails.
>>
>> Duncan Murdoch
>>
>>>
>>> cl<- makeCluster(mpi.universe.size(), type ="MPI")
>>> tmp<- clusterSetupRNG(cl, seed=rep(1,6))
>>> registerDoSNOW(cl)
>>>
>>> counter<- 0
>>> res<- foreach(k = 1:1000) %do% {
>>> counter<- counter + 1
>>> }
>>> tmp<- stopCluster(cl)
>>>
>>> unlist(res)
>>> ______________________________________________
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>>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>
>
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