RcppParallel provides a system for R programmers to easily develop portable parallel algorithms.
The RcppParallel homepage contains usage instructions and examples.
Questions tagged [rcppparallel]
53 questions
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Rcpp::Function in parellel for section
I am trying to parallelize for cycle computing fitness value of individuals. For this whole algorithm I am using Rcpp, but fitness function is passed from R.
So I am trying to do something like this:
#pragma omp parallel for
for (int i = 0; i <…
P. Soltes
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Nested namespaces in Rcpp
I have a working R package including the necessary R/Cpp working. My question here is more of a 'good practices' when using nested namespace.
Currently, my package has; 1) cost functions, 2) optimization functions, 3) parallel workers that call the…
skatz
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1 answer
Apply function to multiple groups using Rcpp and R function
I'm trying to apply a function to multiple groups/id's in r using the foreach package. It's taking forever to run using parallel processing via %dopar%, so I was wondering if it's possible to run the apply or for loop portion in c++ via rcpp or…
user2566907
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1 answer
std::mt19937 in Rcpp
This problem arose from testing my R (RcppParallel) package on windows through the win-builder-r, as for my mac there is not a problem.
"error: 'mt19937' is not a member of 'std'"
Additionally, this error comes…
skatz
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Can we pass Rcpp::List or a vector of vectors to RcppParallel function?
I have an R list which I convert to vector of vectors in Rcpp. Now I want to use RcppParallel to use multiple cores. Can I pass such a list or vector of vectors to RcppParallel similar to IntegerMatrix or IntegerVectors?
user8401743
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- 8
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2 answers
Threadsafe function pointer with Rcpp and RcppParallel via std::shared_ptr
I would like to use a threadsafe function pointer to be applied in an RcppPrallel worker. But I have already problems with this tiny example. No matter if I use it in a package and add SystemRequirements: C++11 in the DESCRIPTION file, or use it in…
maxatSOflow
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1 answer
Rcppparallel bootstrap
I presume, or rather hope, that I have a singular fixable problem or perhaps many smaller ones and should give up. Either way I am relatively new to Rcpp and extremely uninformed on parallel computation and can't find a solution online.
The problem…
skatz
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My Rcpp code delays to show printed message
I have a Rcpp code inside of which I have a message to be printed out as:
"The no. of iteration is ---" after each 100 iteration. For this I used the code:
Rcout << "The number of iteration is : " << t << "\n";
The problem with this code is that…
gultu
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