similar to: Best way to manage configuration for openMP support

Hi everybody! Could somebody help me with the following? I'm trying to run a simple Hello World code in openmp using .C function. The C code i have is: #include <omp.h> #include <stdio.h> #include <R.h> void hello_omp(int *n) { int th_id, nthreads; omp_set_num_threads(*n); #pragma omp parallel private(th_id) { th_id = omp_get_thread_num();

Has anyone successfully compiled pnmath (http://www.stat.uiowa.edu/~luke/R/experimental ) for an intel processor running mac OS 10.5? When I attempt to do so via the R package installer (choosing "Local Source Package" and pointing to the pnmath_0.0-2.tar.gz file), I get the following errors: * Installing *source* package 'pnmath' ... ** libs ** arch - i386 gcc -arch i386

Hola! This is 64bit Lubuntu 13.04, with R-3.0.0 installed from deb http://ppa.launchpad.net/marutter/rrutter/ubuntu raring main via synaptic. gcc --version gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3 > sessionInfo() R version 3.0.0 (2013-04-03) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8

Hello, The problem I'm working now requires to operate on big matrices. I've noticed that there are some packages that allows to run some commands in parallel. I've tried snow and NetWorkSpaces, without much success (they are far more slower that the normal functions) My problem is very simple, it doesn't require any communication between parallel tasks; only that it divides

(1) ...need to speed up a monte-carlo sampling...any suggestions about how I can get R to use all 8 cores of a mac pro would be most useful and very appreciated... (2) spent the last few hours trying to get pnmath to compile under os- x 10.5.4... using gcc version 4.2.1 (Apple Inc. build 5553) as downloaded from CRAN, xcode 3.0... ...xcode 3.1 installed over top of above after

I have an "embarrassingly parallel" routine that I need to run 24000^2/2 times (based on some microarray data). All I really need to do is parallelize a nested for-loop. But I haven't found a clear list of what packages/commands I'd need to do this. I've got a dual quad core xeon system running RHEL5, so if I could use hyperthreading to increase the number of (virtual)

On Mon, 29 Jun 2020 at 11:24, I?aki Ucar <iucar at fedoraproject.org> wrote: > > On Mon, 29 Jun 2020 at 10:21, Roger Bivand <Roger.Bivand at nhh.no> wrote: > > > > In the rgdal package, configure.ac has had : ${LDFLAGS=`"${RBIN}" CMD > > config LDFLAGS`} at least since 2012, so picking up LDFLAGS known to the R > > version installed. Very

Hello, I spent a lot of a time on a weird bug, and I just managed to narrow it down. In parallel code (here with parallel::mclappy, but I got it doMC/multicore too), if the library(tcltk) is loaded, R hangs when trying to open a DB connection. I got the same behaviour on two different computers, one dual-core, and one 2 xeon quad-core. Here's the code: library(parallel) library(RSQLite)

Hello, I apologized if this had already been addressed, and I also submitted this problem on SO: http://stackoverflow.com/questions/20268021/how-to-catch-warnings-sent-during-s4-method-selection Example code: setGeneric('my_method', function(x) standardGeneric('my_method') ) setMethod('my_method', 'ANY', function(x) invisible())

Hi all, I have a problem with a package that imports two other packages which both export a method for the `[` primitive function. I set up a reproducible example here: https://github.com/kforner/namespaceImportFrom_problem.git Basically, the testPrimitiveImport package imports testPrimitiveExport1 and testPrimitiveExport2, which both export a S4 class and a `[` method for the class. Then: R

Dear all, I got an issue trying to parse excel files in parallel using XLConnect, the process hangs forever. Martin Studer, the maintainer of XLConnect kindly investigated the issue, identified rJava as a possible cause of the problem: This does not work (hangs): library(parallel) require(rJava) .jinit() res <- mclapply(1:2, function(i) {

Dear all, Consider this code: >library("data.table") >unloadNamespace('data.table') It produces some warnings Warning in FUN(X[[1L]], ...) : Created a package name, ‘2013-10-29 17:05:51’, when none found Warning in FUN(X[[1L]], ...) : Created a package name, ‘2013-10-29 17:05:51’, when none found ... The warning is produced by the getPackageName() function. e.g.

Hi R developers, I am new to this forum and hope someone can help me with .Call in R. Greatly appreciate any help! Say, I have a vector called "vecA" of length 10000, I generate a vector called "vecR" with elements randomly generated from Uniform[0,1]. Both vecA and vecR are of double type. I want to replace elements vecA by elements in vecR only if sum of elements in

Hello, >From the doc, it says: "isOpen returns a logical value, whether the connection is currently open." But actually it seems to die on closed connections: > con <- file() > isOpen(con) [1] TRUE > close(con) > isOpen(con) Error in isOpen(con) : invalid connection Is it expected ? Tested on R-3.0.2 and R version 3.1.0 Patched (2014-06-11 r65921) on linux x86_64

I encountered very weird behavior of the dir() function, that I just can not understand. Reproducible example: docker run -ti rocker/r-base R version 3.3.1 (2016-06-21) -- "Bug in Your Hair" Copyright (C) 2016 The R Foundation for Statistical Computing Platform: x86_64-pc-linux-gnu (64-bit) > # setup > tmp <- tempfile() > dir.create(tmp) > setwd(tmp) >

Hi, I discovered a little error in vorbis.m4. The source for the test compile uses vorbis_encode_init() but does not include vorbisenc.h. This causes the test to fail when AC_LANG(C++) is used in my configure.ac script. For now my work-around is to surround the Ogg Vorbis tests with AC_LANG_PUSH(C) ... AC_LANG_POP(C) calls, but it should probably be fixed. Thanks, Davy --- >8

Hi, I was reading through the R extensions website and noticed that the example code at the end of the section makes references to CXX11XSTD and CXX11XFLAGS, shouldn?t these be CXX1XSTD and CXX1XFLAGS respectfully? (on the second and fourth line) CXX1X=`"${R_HOME}/bin/R" CMD config CXX11X` CXX1XSTD=`"${R_HOME}/bin/R" CMD config CXX11XSTD` CXX="$(CXX1X) $(CXX1XSTD)"

Hello, I have a package with a namespace. Because I use Roxygen that overwrites the NAMESPACE file each time it is run, I use a R/zzz.R file with an .onLoad() and .onUnload() functions to take care of loading and unloading my shared library. The problem: if I load my library from a local directory, then the unloading of the package fails, e.g: # loads fine >library(Foo,

In C++ code for use in a R-3.1.0 package, my specific problem is that I would like to use <unordered_map> if it is available, or <tr1/unordered_map> if not, or <map> if all else fails. I (think I) can accomplish this with configure.ac as AC_INIT("DESCRIPTION") CXX=`"${R_HOME}/bin/R" CMD config CXX` CXXFLAGS=`"${R_HOME}/bin/R" CMD config

IANACE (I Am Not A Configury Expert :-), but I've been asked to reconfigure LLVM and LLVM-GCC to build with LLVM-GCC (perhaps more accurately, LLVM-G++). The patches to do this are short. In the LLVM tree, this suffices; it looks for LLVM-GCC first, and if that fails, falls back to GCC: Index: llvm.test/autoconf/configure.ac