added benchmark ec2 script

scripts/ec2/benchmark_ec2.sh

@@ -22,12 +22,22 @@
 # Please send any questions or bug reports to [email protected]
 # Written by Danny Bickson
 
+
+############################################################################
+# CONFIGURATION
+############################################################################
 MAX_SLAVES=3  # configure the maximum number of slaves
 MAX_RETRY=3   # configure the number of experiemnt repeats
 PAGERANK=1    # if 1, runs pagerank
 SVD=1         # if 1, runs svd
 ALS=1         # if 1, runs als
 
+#It is recommended to define the below two variables for easier setup
+#uncomment the below two lines once you set them up
+#export AWS_ACCESS_KEY_ID=[ Your access key ]
+#export AWS_SECRET_ACCESS_KEY=[ Your access key secret ]
+######################################################################
+
 # clean old running instances, if any
 echo "y" | ./gl-ec2 -i ~/.ssh/amazonec2.pem -k amazonec2  destroy hpctest  
 # launch ec2 cc2.8xlarge image