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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>> It's a memory problem from R. It is trying to do garbage collection<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>> (RunGenCollector) and getting hung up, probably because of exhausting<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>> one of the stacks in R. Your std::vector<int> objects need to be<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>> copied to R objects. Is it possible to define them as IntegerVector's<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>> instead, in which case the Create method will (I think) just move some<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>> pointers around.<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'><o:p> </o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>I had the same problem a while ago and the solution we’ve come up with was to get rid of Rcpp::DataFrame and use Rcpp::XPtr instead.<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>It turned out that Rcpp::DataFrame is rather impractical for sufficiently large data sets. <o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>As an alternative, Rcpp::XPtr is a little bit more complex to implement but by far more reliable and efficient.<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>For more details see this </span><a href="http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2012-January/003335.html">http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2012-January/003335.html</a> and subsequent messages.<o:p></o:p></p><p class=MsoNormal style='background:white'><o:p> </o:p></p><p class=MsoNormal style='background:white'>Hope this helps.<o:p></o:p></p><p class=MsoNormal style='background:white'><o:p> </o:p></p><p class=MsoNormal style='background:white'>Cheers,<o:p></o:p></p><p class=MsoNormal style='background:white'><o:p> </o:p></p><p class=MsoNormal style='background:white'>Slava Mazur<span style='font-size:10.0pt;font-family:"Courier New";color:black'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>