Dear all,
I'm trying to use some CHOLMOD functionality inside an R package
(specifically, sparse Cholesky updates/downdates). There's an
CHOLMOD/Eigen interface for that, but unfortunately the header I need is
not shipped as part of either the Matrix package or the Rcpp package.
The file is c
On 16 January 2018 at 21:02, Alexis Sarda wrote:
| Hello,
|
| I am integrating RcppParallel into my R package and I'm running into
| strange problems with segmentation faults, but only during the continuous
| integration checks. I have essentially variations of the following (I hope
| GitHub gist
On 17 January 2018 at 13:10, Simon Barthelmé wrote:
| I'm trying to use some CHOLMOD functionality inside an R package
| (specifically, sparse Cholesky updates/downdates). There's an
| CHOLMOD/Eigen interface for that, but unfortunately the header I need is
| not shipped as part of either the M
RSpectra does not use CHOLMOD, so probably it is not helpful here.
I would suggest that you build CHOLMOD as an external library with
headers, and then directly link Eigen and your code to the external
CHOLMOD, ignoring the one shipped with Matrix. It is just like all
other R packages that require
Hi Dirk,
Thanks for your suggestion - I had thought of doing that but it requires
tracking the versions of SuiteSparse used by Matrix, which means extra
maintenance work. OTOH maybe updates are rare enough that it's not worth
worrying about. It'd be nice if Matrix could expose more of SuiteSpa
In your RcppParallel worker, it looks like you're trying to write to
an Rcpp matrix; e.g. you have:
distmat_(i,j) = local_calculator->calculate(i,j);
where distmat_ is a matrix. You should avoid using Rcpp classes within
RcppParallel workers, as there's no guarantee that the methods
available
(I think I forgot to reply to all)
I failed to mention that I am also using RcppArmadillo elsewhere,
and I found the following post by the Coatless Professor saying that
Armadillo requires at least gcc 4.7.2:
http://thecoatlessprofessor.com/programming/r/selecting-an-a
lternative-compiler-for-r-p
I think it is worth asking Martin Maechler if he could expose more
SuiteSparse functionality through the Matrix package.
Martyn
On Wed, 2018-01-17 at 15:06 +0100, Simon Barthelmé wrote:
> Hi Dirk,
>
> Thanks for your suggestion - I had thought of doing that but it requires
> tracking the versio
