On Mon, Sep 30, 2013 at 4:42 PM, Douglas Bates <ba...@stat.wisc.edu> wrote:
> On Mon, Sep 30, 2013 at 4:16 PM, Dirk Eddelbuettel <e...@debian.org> wrote: > >> >> Hi Martyn, >> >> On 30 September 2013 at 21:02, Martyn Plummer wrote: >> | I've already been asked to look into this by Brian. I can't say I've >> rolled up my sleeves very far, but the problem appears to be in Eigen >> itself. >> >> Cool! Good to know. >> >> | I should clarify that I'm not volunteering to maintain RcppEigen, but I >> will provide patches as and when. >> >> That too is appreciated! >> >> The Eigen code on CRAN has not been updated in a while. The version number >> (0.3.1.2.1) reflect both upstream Eigen 3.1.2 (two patch releases behind >> Eigen in the 3.1.* series which is now at 3.1.4) and the mandatory change >> for >> JSS once the paper was accepted. >> >> Changing 3.1.2 to 3.1.3/3.1.4 may help. Or it may not. Maybe 3.2.0 >> upstream >> will help. >> >> Changing to 3.1.4 or, better, 3.2, would be a good idea. In particular, > the 3.2 version provides Cholesky, LU and QR sparse factorizations that do > not depend on SuiteSparse (the package of C libraries of which CHOLMOD is > part). > > Unfortunately, the current maintainer played a little fast and loose by > adding a couple of wrinkles to the Eigen code itself and using these > wrinkles in lme4. > > I had been hoping to put off the switch to Eigen 3.2 for a while longer as > I am facing some deadline pressures on another project. But perhaps it > would be best to create an experimental branch using Eigen 3.2. Best case, > the fixes for lme4 are easy. Worst case ... > > Ben's message came through while I was writing this. If you are > interested look at the last link he gives > > http://permalink.gmane.org/gmane.comp.lib.eigen/991 > > and you will see that the sort of error messages showing up in the > RcppEigen log were present in 2010 and the reaction of the Eigen developers > is that the compiler is complaining about code that follows the standard > and is compilable on other systems. > It seems that a good place for someone with access to a Solaris system to start is to download versions 3.1.4 and 3.2 of Eigen from http://eigen.tuxfamily.org and see if the simple program $ cat test.cc #include "eigen/Eigen/Eigen" using namespace Eigen; int main() { return 0; } $ $ CC test.cc compiles with one of those versions. If that doesn't compile the way forward will be difficult.
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