On 28 February 2012 at 13:56, Douglas Bates wrote: | >> You do have libgoogle-perftools-dev installed, right? | > | > Well, actually, no I didn't have that package installed. Thanks for | > the pointer. | | Followup question: How does one invoke the cpu-profiler? You need to | give a path to the binary, which is actually something like | /usr/lib/R/bin/exec/R but that needs several environment variables to | be set. Do you get around this by using littler?
You need to link with -lprofiler for profiling, the tcmalloc library is another (unrelated) perftool. Once linked with the profiling library, you can either use env vars to control the profiling (where to log etc) or use two functions to start/end, not unlike what Rprof does. I do believe I used littler, but then I generally do on the command-line (rather than R CMD BATCH et al). A worked example should be in the "Intro to HPC with R" slides of which the latest version may be the one from useR 2010. Dirk -- "Outside of a dog, a book is a man's best friend. Inside of a dog, it is too dark to read." -- Groucho Marx _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
