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-rw-r--r--libraries/OpenBLAS/README5
1 files changed, 5 insertions, 0 deletions
diff --git a/libraries/OpenBLAS/README b/libraries/OpenBLAS/README
index f1a444a09eb06..7269fb158c308 100644
--- a/libraries/OpenBLAS/README
+++ b/libraries/OpenBLAS/README
@@ -2,3 +2,8 @@ OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
Added symbolic link to install a generic blas library that can be used by
Octave and R.
+OpenBLAS has cpu specific targetted assembly code for speed optimisation.
+If running in a vm with QEMU cpu you need to specify a variable
+TARGET=cpuname to the script where cpuname is one from the list in the
+sourcecode file TargetList.txt
+examples are TARGET=NEHALEM for an Intel i7 or TARGET=ATHLON for AMD Athlon