This paper analyses the register requirements of software pipelined inner loops. When the number of functional units and/or the number of stages of individual functional units is increased, the number of registers required may be prohibitive in chip area and cycle time. We characterize lifetime of values in pipelined loops with their loop register locality (LRL). Based on this characteristic, w...

Vol. 9 No. 1 1997 3 Three factors contribute to the success of a microprocessor: price, performance, and software availability. The DIGITAL FX!32 product addresses the third factor, software availability, by making hundreds of new applications available on Alpha-based platforms running the Windows NT operating system. DIGITAL FX!32 software combines emulation and binary translation to provide f...

Malicious software, widely known as malware, is one of the biggest threats to our interconnected society. Cybercriminals can utilize malware carry out their nefarious tasks. To address this issue, analysts have developed systems that prevent from successfully infecting a machine. Unfortunately, these come with two significant limitations. First, they frequently target specific platform/architec...

Disclaimer: " The contents of this document are scribe notes for The University of Texas at Austin EE382V Spring 2007, Computer Architecture: User System Interplay *. The notes capture the class discussion and may contain erroneous and unverified information and comments. This paper comes from industry. Transmetta's Crusoe microprocessor is a VLIW microprocessor that along with a software layer...

There is growing interest in autonomic computing systems that can optimize their own behavior on different platforms without manual intervention. Examples of successful self-optimizing systems are ATLAS, which generates Basic Linear Algebra Subroutine (BLAS) Libraries, and FFTW, which generates FFT libraries. Self-optimizing systems may need the values of hardware parameters such as the number ...

Though it is common practice to treat synchronization primitives for multiprocessors as abstract data types, they are in reality machine instructions on registers. A crucial theoretical question with practical implications is the relationship between the size of the register and its computational power. We wish to study this question and choose as a rst target the popular compare&swap operation...