From fa8c6e2f0b5f04b8b5b9c7fb12ed16ca46a9dc77 Mon Sep 17 00:00:00 2001 From: Skipper Seabold Date: Fri, 8 May 2015 14:34:58 -0500 Subject: [PATCH] DOC: Add warning about fork + openmp --- wrapper/README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/wrapper/README.md b/wrapper/README.md index 9c0399693..b863353b1 100644 --- a/wrapper/README.md +++ b/wrapper/README.md @@ -7,6 +7,8 @@ Python * To make the python module, type ```./build.sh``` in the root directory of project * Install with `python setup.py install` from this directory. * Refer also to the walk through example in [demo folder](../demo/guide-python) +* **NOTE**: if you want to run XGBoost in parallel using the fork backend for joblib/multiprocessing, you must build XGBoost without support for OpenMP by `make no_omp=1`. Otherwise, use the forkserver (in Python 3.4) or spawn backend. See the sklearn_examples.py demo. + R =====