On 11 July 2013 at 19:21, Gabor Grothendieck wrote:
| 1. Just to be clear what we have been discussing here is not just how to
| avoid copying but how to avoid copying while using as and wrap
| or approaches that automatically generate as and wrap. I was already
| aware of how to avoid copying us
Anwar,
On 12 July 2013 at 01:42, Anwar Ludin wrote:
| Yes I agree, I'm just having issues with the way the build process works, so
let's make it a Rcpp problem ;)
|
| >library(Rcpp)
| >Rcpp.package.skeleton("testpackage")
|
| R CMD INSTALL --preclean --no-multiarch testpackage
|
| icpc -I/usr
Hi Dirk,
Yes I agree, I'm just having issues with the way the build process works, so
let's make it a Rcpp problem ;)
>library(Rcpp)
>Rcpp.package.skeleton("testpackage")
R CMD INSTALL --preclean --no-multiarch testpackage
icpc -I/usr/include/R -DNDEBUG -I/usr/local/include
-I"/usr/lib64/R/l
1. Just to be clear what we have been discussing here is not just how to
avoid copying but how to avoid copying while using as and wrap
or approaches that automatically generate as and wrap. I was already
aware of how to avoid copying using Armadillo how to use Armadillo types
as arguments and ret
Everybody has this existing example in their copy of Armadillo.
I am running it here from SVN rather than the installed directory, but this
should not make a difference. Machine is my not-overly-powerful thinkpad used
for traveling:
edd@don:~/svn/rcpp/pkg/RcppArmadillo/inst/examples$ r fastLm.r
On 11 July 2013 at 15:12, Anwar Ludin wrote:
| Hello,
|
| When building a rcpp package is there a way of forcing -fPIC instead of -fpic
during package compilation? I 'm using RStudio as my main IDE and the package
is built using
That is an RStudio question, and they have it all documented.
Se
On 11 July 2013 at 21:34, Changi Han wrote:
| I am sure there are better ways to achieve the goal. I would suggest that
these
| two be similar if possible. I think the naive expectation is for them to be
| consistent.
|
| // [[Rcpp::export]]
| stuff function(Rcpp::stuff) {
| }
|
| // [[Rcpp::ex
On 11 July 2013 at 10:33, baptiste auguie wrote:
| Hi,
|
| That's great, thanks for considering this!
|
| Following this discussion, I went to browse through my code looking for wrap()
| and as() statements that could benefit from a speed-up of memory reuse. Of
| course I didn't find any.
| I s
These __are__ similar. The difference is in the classes themselves.
Rcpp classes are proxy classes so C++ copy mechanism does not apply to
them. arma classes are proper c++ classes, so C++ semantics apply.
I'm at useR right now, so I can't really work on this. I'll submit at
least ideas later.
I am sure there are better ways to achieve the goal. I would suggest that
these two be similar if possible. I think the naive expectation is for them
to be consistent.
// [[Rcpp::export]]
stuff function(Rcpp::stuff) {
}
// [[Rcpp::export]]
stuff function(arma::stuff) {
}
Thank you again. Cheers.
Hi,
That's great, thanks for considering this!
Following this discussion, I went to browse through my code looking for
wrap() and as() statements that could benefit from a speed-up of memory
reuse. Of course I didn't find any.
I switched to using Modules when they were introduced, the code being
Hello,
This comes up every now and then, I think we can find a syntax to
initiate an arma::mat that would allow what you want.
It is not likely it will come via attributes. The idea is to keep them
simple. The solutions I see below would eventually lead to clutter, and
we are heading in the
Hello,
When building a rcpp package is there a way of forcing -fPIC instead of -fpic
during package compilation? I 'm using RStudio as my main IDE and the package
is built using
R CMD INSTALL --preclean --no-multiarch
Thanks!
___
Rcpp-devel mailing
On Thu, Jul 11, 2013 at 8:56 AM, Changi Han wrote:
> I entirely missed that thread ... sorry. I came across the above examples
> at:
>
> http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2013-April/005680.html
>
>
> On Thu, Jul 11, 2013 at 8:38 PM, Gabor Grothendieck
> wrote:
>>
>> On Thu,
I entirely missed that thread ... sorry. I came across the above examples
at:
http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2013-April/005680.html
On Thu, Jul 11, 2013 at 8:38 PM, Gabor Grothendieck wrote:
> On Thu, Jul 11, 2013 at 8:32 AM, Changi Han
> wrote:
> > Hello,
> >
> > I t
On Thu, Jul 11, 2013 at 8:32 AM, Changi Han wrote:
> Hello,
>
> I think I (superficially) understand the difference between:
>
> // [[Rcpp::export]]
> double sum1(Rcpp::NumericMatrix M) {
> arma::mat A(M.begin(), M.rows(), M.cols(), false);
> return sum(sum(A));
> }
>
>
> // [[Rcpp::export
Hello,
I think I (superficially) understand the difference between:
// [[Rcpp::export]]
double sum1(Rcpp::NumericMatrix M) {
arma::mat A(M.begin(), M.rows(), M.cols(), false);
return sum(sum(A));
}
// [[Rcpp::export]]
double sum2(arma::mat A) {
return sum(sum(A));
}
Partly out of l
On Thu, Jul 11, 2013 at 3:50 AM, Dirk Eddelbuettel wrote:
>
> On 10 July 2013 at 11:58, Gabor Grothendieck wrote:
> | Suppose we have this program where we have started and ended with SEXP
> | and written out the as and wrap conversions to make them explicit.
> |
> | How many times is the data cop
Jules,
On 10 July 2013 at 11:18, Jules Archer wrote:
| Dirk,
|
| Thank you for your fast reply!
|
| With regard to your specific suggestions:
|
| |Two suggestions. First, try creating a simple package without MathGL just to
| |make sure you have that process of going from sourceCpp via compil
On 10 July 2013 at 11:58, Gabor Grothendieck wrote:
| Suppose we have this program where we have started and ended with SEXP
| and written out the as and wrap conversions to make them explicit.
|
| How many times is the data copied?
| Does as copy the underlying data?
| Does wrap?
| Is it copied
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