Added the doc for the conflict with R parallel.

diff --git a/README.md b/README.md
index 52d09836618e0d82d33785850189d5646006faac..befc14fc09d168dabd3aa61f6e71444ce2811857 100644 (file)
--- a/README.md
+++ b/README.md
@@ -100,6 +100,7 @@ Please see Changelog.txt to obtain the differences between GotoBLAS2 1.13 BSD ve
 * Please use gcc version 4.6 and above to compile Sandy Bridge AVX kernels on Linux/MingW/BSD.
 * Please use Clang version 3.1 and above to compile the library on Sandy Bridge microarchitecture. The Clang 3.0 will generate the wrong AVX binary code.
 * The number of CPUs/Cores should less than or equal to 256. 
+* On Linux, OpenBLAS sets the processor affinity by default. This may cause [the conflict with R parallel](https://stat.ethz.ch/pipermail/r-sig-hpc/2012-April/001348.html). You can build the library with NO_AFFINITY=1.
 * On Loongson 3A. make test would be failed because of pthread_create error. The error code is EAGAIN. However, it will be OK when you run the same testcase on shell. 
 
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