1. Automatically Tuned Linear Algebra Software,generic shared ATLAS is an approach for the automatic generation and optimization of numerical software for processors with deep memory hierarchies and pipelined functional units. The production of such software for machines ranging from desktop workstations to embedded processors can be a tedious and time consuming task. ATLAS has been designed to automate much of this process. We concentrate our efforts on the widely used linear algebra kernels called the Basic Linear Algebra Subroutines (BLAS). These libraries are built without any processor extension instructions, and should run on all processors of this general architecture, albeit less than optimally. From Debian 3.0r0 APT