revolution-mkl package not functioning correctly with R 2.13
It appears that the revoluton-mkl package, available via the multiverse Ubuntu repository with the purpose of adding multi-threaded numeric libraries to R, is not function correctly with R 2.13 (at least the version found on CRAN). Testing with "R-benchmark-25.R" (found at http://r.research.att.com/benchmarks/), I get the following error, after installing the revolution-mkl package (4 core, AMD processor, 11.04 64-bit Ubuntu): > source("R-benchmark-25.R") Loading required package: Matrix Loading required package: lattice Attaching package: 'Matrix' The following object(s) are masked from 'package:base': det Loading required package: SuppDists R Benchmark 2.5 =============== Number of times each test is run__________________________: 3 I. Matrix calculation --------------------- Creation, transp., deformation of a 2500x2500 matrix (sec): 1.237 2400x2400 normal distributed random matrix ^1000____ (sec): 0.861333333333333 Sorting of 7,000,000 random values__________________ (sec): 1.09133333333333 2800x2800 cross-product matrix (b = a' * a)_________ (sec): 1.55633333333333 Error in solve(crossprod(a), crossprod(a, b)) : the leading minor of order 1271 is not positive definite Timing stopped at: 2.55 0.04 0.729 I was also unable to exit from R cleanly. I tried R-benchmark-25.R without the SuppDists package, and the same error occurred. In a virtual machine, I rolled back R to version 2.12.1, the version found in the main Ubuntu repository, and R-benchmark-25.R worked without error. So it appears that rolling back R to 2.12.1 may be a solution (R 2.12 is no longer available as a deb on CRAN). I have not tested the GOTOBlas2 libraries. Ian Fellows mentions issues on the Mac side of things (http://groups.google.com/group/deducer/browse_thread/thread/8c9a8af0465f9b9b), although I am not sure if this applicable as Ubuntu 11.04 is based on gcc 4.5. If anyone has the revolution-mkl package working with R 2.13 or has tested the GOTOBlas2 libraries, please let me know. Michael
Dr. Michael A. Rutter School of Science Penn State Erie, The Behrend College Station Road Erie, PA 16563 http://math.bd.psu.edu/faculty/rutter