From cefee1ed1aa0fca086c54c7d0aa87f98571180c1 Mon Sep 17 00:00:00 2001
From: Patrick Wendell <pwendell@gmail.com>
Date: Mon, 9 Sep 2013 21:45:04 -0700
Subject: [PATCH] Document fortran dependency for MLBase

---
 docs/mllib-guide.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/mllib-guide.md b/docs/mllib-guide.md
index 1583ce4a58..f991d86c8d 100644
--- a/docs/mllib-guide.md
+++ b/docs/mllib-guide.md
@@ -11,6 +11,13 @@ filtering, as well as an underlying gradient descent optimization primitive.
 This guide will outline the functionality supported in MLlib and also provides
 an example of invoking MLlib.
 
+# Dependencies
+MLlib uses the [jblas](https://github.com/mikiobraun/jblas) linear algebra library, which itself
+depends on native Fortran routines. You may need to install the 
+[gfortran runtime library](https://github.com/mikiobraun/jblas/wiki/Missing-Libraries)
+if it is not already present on your nodes. MLlib will throw a linking error if it cannot 
+detect these libraries automatically.
+
 # Binary Classification
 
 Binary classification is a supervised learning problem in which we want to
-- 
GitLab