Advances in multiprocessor interconnect technology are leading to high performance networks. However , software overheads associated with message passing are limiting the processors to get maximum performance from these networks, leading to under-utilization of network resources. Though processor-clusters are being used in some systems in an ad hoc manner to alleviate this problem, there is no ...

Advances in multiprocessor interconnect technology are leading to high performance networks. However, software overheads associated with message passing are limiting the processors to get maximum performance from these networks, leading to under-utilization of network resources. Though processor-clusters are being used in some systems in an ad hoc manner to alleviate this problem, there is no f...

With processor speeds rapidly approaching the gigahertz mark, the shortcomings of today’s memory architectures are becoming all too apparent. Waiting a few hundred nanoseconds to retrieve data from main memory is tolerable for a 100-MHz CPU, but this delay turns into hundreds of cycles for a 1-GHz processor. Compaq’s Alpha processors are likely to be the first to reach that speed, and at this m...

Operating system abstractions do not always meet the needs of a language or applications designer. A lack of efficiency and functionality in scheduling mechanisms can be filled by an application-specific runtime environment providing mechanisms for dynamic processor allocation and memory conscious scheduling. We believe that a synergistic approach that involves three components, the operating s...

With the increasing wealth of digital information stored on computer systems today, security issues have become increasingly important. In addition to attacks targeting the software stack of a system, hardware attacks have become equally likely. Researchers have proposed Secure Processor Architectures which utilize hardware mechanisms for memory encryption and integrity verification to protect ...