Hi Nicole, 

Given the issues you had in the last email, I fear that there might be a non-standard installation of R, which would be problematic for the parallel processing part of Amelia, which relies on the "parallel" package that comes in the standard installation of R. You might want to make sure those are installed and then try the software again. 

You might also check that the cluster allows for multiple cores to be accessed by the same process. Occasionally, servers will not allow this type of access. 

Hope that helps!

Cheers,
Matt

~~~~~~~~~~~
Matthew Blackwell
Assistant Professor of Political Science
University of Rochester
url: http://www.mattblackwell.org


On Thu, Jul 18, 2013 at 4:40 AM, Nicole Janz <nicolejanz@gmail.com> wrote:
Dear all,

I have been working on submitting amelia jobs on the cluster service of my university. I cannot get the parallel option to work.

When I invoke amelia with:

amelia(t, m=nmi, ts="year", cs="country",intercs=TRUE,polytime=1,log=vlogs,parallel="multicore",ncpus=4)

only one R process/thread is created. 

Cluster information: 16-core RedHat Enterprise Linux 6 x86_64 server.

Any ideas?

Thank you!
Nicole


Nicole Janz, PhD Cand.
Lecturer at Social Sciences Research Methods Centre 2013/14
University of Cambridge
Department of Politics and International Studies
Skype: nicole.janz
Blog: politicalsciencereplication.wordpress.com












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