search for: tictoc

...ifference between the values of two vectors vec1 and vec2, the ratio sampling between vec1 and vec2 is equal to ratio_sampling. I have to use only the 500th value of the first serie before doing the difference with the value of the second serie (vec2). Thank you Best regards Laurent library(tictoc) library(comprehenr) ratio_sampling <- 500 ## size of the first serie N1 <- 70000 ## size of the second serie N2 <- 100 ## mock data set.seed(123) vec1 <- rnorm(N1) vec2 <- runif(N2) ## 1. with the "for" loops ## the square differences will be stored in a vector S_diff2...

...1 and vec2, the ratio sampling > between vec1 and vec2 is equal to ratio_sampling. I have to use only the > 500th value of the first serie before doing the difference with the > value of the second serie (vec2). > > Thank you > > Best regards > > Laurent > > library(tictoc) > library(comprehenr) > > ratio_sampling <- 500 > ## size of the first serie > N1 <- 70000 > ## size of the second serie > N2 <- 100 > ## mock data > set.seed(123) > vec1 <- rnorm(N1) > vec2 <- runif(N2) > > > ## 1. with the "for"...

...istributed by R-forge (gEcon). One of gEcon package users found a strange behaviour of package (R froze for couple of minutes) and reported it to me. I traced the strange behaviour to compiler package. I attach short demonstration of the problem to this mail (demonstration makes use of compiler and tictoc packages only). In short, the compiler package has problems in compiling large functions - their compilation and execution may take much longer than direct execution of an uncompiled function. Such functions are generated by gEcon package as they describe steady state for economy. I am curious if...

...ifference between the values of two vectors vec1 and vec2, the ratio sampling between vec1 and vec2 is equal to ratio_sampling. I have to use only the 500th value of the first serie before doing the difference with the value of the second serie (vec2). Thank you Best regards Laurent library(tictoc) library(comprehenr) ratio_sampling <- 500 ## size of the first serie N1 <- 70000 ## size of the second serie N2 <- 100 ## mock data set.seed(123) vec1 <- rnorm(N1) vec2 <- runif(N2) ## 1. with the "for" loops ## the square differences will be stored in a vector S_diff2...

...e > (gEcon). One of gEcon package users found a strange behaviour of package (R > froze for couple of minutes) and reported it to me. I traced the strange > behaviour to compiler package. I attach short demonstration of the problem > to this mail (demonstration makes use of compiler and tictoc packages only). > > In short, the compiler package has problems in compiling large functions - > their compilation and execution may take much longer than direct execution > of an uncompiled function. Such functions are generated by gEcon package as > they describe steady state for e...

...e > (gEcon). One of gEcon package users found a strange behaviour of package (R > froze for couple of minutes) and reported it to me. I traced the strange > behaviour to compiler package. I attach short demonstration of the problem > to this mail (demonstration makes use of compiler and tictoc packages only). > > In short, the compiler package has problems in compiling large functions - > their compilation and execution may take much longer than direct execution > of an uncompiled function. Such functions are generated by gEcon package as > they describe steady state for e...

I'm not sure the user would know ;). This is very system-specific issue just because the Linux network stack behaves so differently from other OSes (for purely historical reasons). That makes it hard to abstract as a "feature" for the R sockets that are supposed to be platform-independent. At least TCP_NODELAY is actually part of POSIX so it is on better footing, and disabling

...vec1 and vec2, the ratio sampling >between vec1 and vec2 is equal to ratio_sampling. I have to use only the >500th value of the first serie before doing the difference with the >value of the second serie (vec2). > >Thank you > >Best regards > >Laurent > >library(tictoc) >library(comprehenr) > >ratio_sampling <- 500 >## size of the first serie >N1 <- 70000 >## size of the second serie >N2 <- 100 >## mock data >set.seed(123) >vec1 <- rnorm(N1) >vec2 <- runif(N2) > > >## 1. with the "for" loops >...

Please, check a tcpdump session on localhost while running the following script: library(parallel) library(tictoc) cl <- makeCluster(1) Sys.sleep(1) for (i in 1:10) { tic() x <- clusterEvalQ(cl, iris) toc() } The initialization phase comprises 7 packets. Then, the 1-second sleep will help you see where the evaluation starts. Each clusterEvalQ generates 6 packets: 1. main -> worker PSH, ACK 10...

...Econ package users found a strange behaviour of package (R >> froze for couple of minutes) and reported it to me. I traced the strange >> behaviour to compiler package. I attach short demonstration of the problem >> to this mail (demonstration makes use of compiler and tictoc packages only). >> >> In short, the compiler package has problems in compiling large functions - >> their compilation and execution may take much longer than direct execution >> of an uncompiled function. Such functions are generated by gEcon package as >>...

...vec1 and vec2, the ratio sampling >between vec1 and vec2 is equal to ratio_sampling. I have to use only the >500th value of the first serie before doing the difference with the >value of the second serie (vec2). > >Thank you > >Best regards > >Laurent > >library(tictoc) >library(comprehenr) > >ratio_sampling <- 500 >## size of the first serie >N1 <- 70000 >## size of the second serie >N2 <- 100 >## mock data >set.seed(123) >vec1 <- rnorm(N1) >vec2 <- runif(N2) > > >## 1. with the "for" loops >...

...plete list of packages already installed at my library directory: marc at hera:~/R/x86_64-pc-linux-gnu-library/4.0$ ls askpass DEoptimR generics later pkgbuild readxl tibble assertthat desc ggplot2 lazyeval pkgconfig rematch tictoc backports deSolve glue lifecycle pkgload remotes tidyr base64enc digest gridExtra lspline plotly reprex tidyselect BH diptest gtable lubridate plyr reshape2 tidyverse blob dplyr...