Dirk, That worked! Sort of. It's gone from running processes on one processor to two processors and Rbenchmark ran in 64 seconds rather than 178. Is there a way to get it to use more than 2 processors when it can? (revo mkl used all available processors by default).
many thanks! Liz On 7/18/2013 8:36 PM, Dirk Eddelbuettel wrote:
On 18 July 2013 at 18:03, Elizabeth Tighe wrote: | | So I have two Dell power-edge machines running latest Ubuntu (13.04) | with latest version of R (3.01). I installed revolution-mkl on one | machine (T-410) and it works fine. On the second machine (T-620), it | says the latest version of revolution-mkl is installed, but I'm getting | no multi-processor functioning (R-benchmark-25.R) runs on a single | processor and takes same amount of time before and after installing. | | Both machines I've installed using simple sudo apt-get install r-base | r-base-dev and same for revolution-mkl The revo-mkl package is stale. It was a one-off; its 'closed source but freely distributed' annoyed a lot of people, and Revo no longer cares about Ubuntu (or Debian). | Anyone have any tips for debugging, figuring out why it's not working on | the second machine? Is there a way to get R to find the mkl libraries | without reinstalling from scratch from source code? | | Any insights anyone out there might have would be appreciated! Just install libopenblas-dev --- it is also multithreaded, but open source and under development (as a successor to the not-really-open-source GotoBLAS). Dirk
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