Wiki installation guide for macOS, apple M1 using xcode-select compiler when openMP is installed from homebrew should include the path for openMP in makevars
Nobody has claimed this yet.
Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 52/100
- Issue type
- Documentation
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- macos, r
- Domain
- build-system, documentation
Research direction
Start with the wiki installation guide and the .R/Makevars example described in the issue. Verify the macOS Apple M1 instructions for an xcode-select compiler and Homebrew libomp, including the include and library paths and the need to build from source. Done means the guide clearly explains these steps for compiling with multithreading support.
Written by the indexing model from the issue text.
Description
I'm using apple M1, macOS 12.1, I'm using xcode-select installed c++ compiler.
Following the wiki's instruction, I brew installed libomp, add the makevars file's file, but cannot compile data.table because it says that I cannot find omp.h.
After change the makevars file to include the path of openMP, it compiles successful:
.R/Makevars:
CPPFLAGS += -Xclang -fopenmp -I /opt/homebrew/Cellar/libomp/14.0.0/include
LDFLAGS += -lomp -L /opt/homebrew/Cellar/libomp/14.0.0/lib
Besides, for those newbie, the wiki installation should be more clear that, to include multi-thread support, we must compile from source, just have libomp installed and makevars updated is not enough, we should then build from source.
- Dominant language
- R
- Stars
- 3.9k
- Forks
- 1.1k
- Avg merge
- 14h 4m
- Merged PRs (30d)
- 4
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
More from Rdatatable/data.table
-
as.data.table() recurses without end on a survival::Surv object (or any data.frame carrying one) Open
Difficulty 2/5 1-3 hours Newbie friendliness 88/100
Rdatatable/data.table#7887 ·
-
consistency tests
Difficulty 2/5 1-3 hours Newbie friendliness 68/100
Rdatatable/data.table#7853 · 3 comments ·
-
internals
Difficulty 2/5 1-3 hours Newbie friendliness 65/100
Rdatatable/data.table#6938 · 1 comment ·
-
encoding fread
Difficulty 2/5 1-3 hours Newbie friendliness 65/100
Rdatatable/data.table#5179 · 8 comments ·
-
documentation programming
Difficulty 2/5 1-3 hours Newbie friendliness 68/100
Rdatatable/data.table#3199 · 3 comments ·
All issues in Rdatatable/data.table
Similar issues
-
Difficulty 2/5 1-3 hours Newbie friendliness 82/100
r-lib/pkgdepends#485 · 3 comments ·
-
Difficulty 1/5 Under an hour Newbie friendliness 92/100
-
beginners blocker
Difficulty 2/5 1-3 hours Newbie friendliness 78/100
-
enviPathR OpenBuild Error Build OK Build Warning policies-accepted pre-review precheck-passed
Difficulty 1/5 Under an hour Newbie friendliness 84/100
Bioconductor/BiocContributions#207 · 6 comments ·
-
Difficulty 2/5 1-3 hours Newbie friendliness 74/100
datacarpentry/semester-biology#1255 ·