Hi, xiangrui i check the stderr of worker node, yes it's failed to load implementation from: com.github.fommil.netlib.NativeSystemBLAS...
what do you mean by "include breeze-natives or netlib:all"? things i've already done: 1. add breeze and breeze native dependency in sbt build file 2. download all breeze jars to slaves 3. add jars to classpath in slave 4. ln -s libopenblas_nehalemp-r0.2.9.rc2.so libblas.so.3 and add it to LD_LIBRARY_PATH in slave thank you for your help -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/breeze-DGEMM-slow-in-spark-tp5950p5977.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
