Some vector architectures provide greater efficiency by allowing the output of one pipeline to be chained directly into another pipeline. This feature is called chaining and eliminates the need to store the result of the first pipeline before sending it into the second pipeline. http://publib.boulder.ibm.com/infocenter/zvm/v5r4/index.jsp?topic=/com.ibm.zvm.v54.dmsc5/stall.htm