Dear all, I am trying to make some matrix operations (whose size I think is smaller than what R allows) but the operations are not feasible when they run in one session but it is feasible if they run separately while each operation is totally independent of the other. I run the code in one session the error that appears is:
Error: cannot allocate vector of size 915.5 Mb R(16467,0xa0421540) malloc: *** mmap(size=960004096) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug R(16467,0xa0421540) malloc: *** mmap(size=960004096) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug In the code that I run (next lines), if I do not include the last three lines it runs perfectly, if I exclude operations to create the xMax again it runs perfectly, if I include both G.search and xMax appears the error term. Does anyone knows the solution of this problem or why this problem happens? The code that I run is: N<-250 x<-matrix(c(rnorm(N,-1.5,1), rnorm(N,1,1), rbinom(N,1,0.5)), ncol=3) start<-(-1) end<-3 step<-10^(-2) n.steps<-(end-start)/step steps2 <-n.steps^2 grids<-seq(from=start+step, to=end, by=step) xMax <-matrix(0,N*steps2,3) xMax[,1]<-rep(x[,1],steps2) xMax[,2]<-rep(x[,2],steps2) xMax[,3]<-rep(x[,3],steps2) G.search1<-as.matrix(rep(grids, n.steps, each=N)) G.search2<-as.matrix(rep(grids, N, each=n.steps)) G.search<-cbind(1,G.search1, G.search2) Thank you Dimitris -- View this message in context: http://r.789695.n4.nabble.com/memory-problem-Error-cannot-allocate-vector-of-size-915-5-Mb-tp3707943p3707943.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
