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- research-articleAugust 2020
Nearly symmetric multi-core processors
APSys '20: Proceedings of the 11th ACM SIGOPS Asia-Pacific Workshop on SystemsPages 42–49https://doi.org/10.1145/3409963.3410486Multi-core processors are commonplace and continue to require rethinking (not only) in system software development. It is still difficult to operate several functionally identical computing cores efficiently. One misconception is to assume that ...
- research-articleJune 2013
Latch-free data structures for DBMS: design, implementation, and evaluation
SIGMOD '13: Proceedings of the 2013 ACM SIGMOD International Conference on Management of DataPages 409–420https://doi.org/10.1145/2463676.2463720The fact that multi-core CPUs have become so common and that the number of CPU cores in one chip has continued to rise means that a server machine can easily contain an extremely high number of CPU cores. The CPU scalability of IT systems is thus ...
- research-articleJuly 2012
Gordon: design, performance, and experiences deploying and supporting a data intensive supercomputer
- Shawn M. Strande,
- Pietro Cicotti,
- Robert S. Sinkovits,
- William S. Young,
- Rick Wagner,
- Mahidhar Tatineni,
- Eva Hocks,
- Allan Snavely,
- Mike Norman
XSEDE '12: Proceedings of the 1st Conference of the Extreme Science and Engineering Discovery Environment: Bridging from the eXtreme to the campus and beyondArticle No.: 3, Pages 1–8https://doi.org/10.1145/2335755.2335789The Gordon data intensive supercomputer entered service in 2012 as an allocable computing system in the NSF Extreme Science and Engineering Discovery Environment (XSEDE) program. Gordon has several innovative features that make it ideal for data ...
- posterMay 2011
SRC: information retrieval as a persistent parallel service on supercomputer infrastructure
ICS '11: Proceedings of the international conference on SupercomputingPage 369https://doi.org/10.1145/1995896.1995952We seek to create a parallel search engine which outperforms conventional, loosely coupled distributed systems. We have (1) parallelized the vector space model with 120%-180% parallel efficiency, (2) introduced a highly parallel algorithm for text ...
- research-articleAugust 2010
A method for analysis and solution of scalability bottleneck in DBMS
SoICT '10: Proceedings of the 1st Symposium on Information and Communication TechnologyPages 139–146https://doi.org/10.1145/1852611.1852639Many-core systems differ from traditional multi-processor systems in performance characteristics and sometimes behave in unfamiliar ways for us. This can lead us facing performance troubles from unknown causes, requiring long time to fix them. To ...
- ArticleJanuary 2007
Approximation Algorithm for Process Mapping on Network Processor Architectures
ASP-DAC '07: Proceedings of the 2007 Asia and South Pacific Design Automation ConferencePages 577–582The high performance requirements of networking applications has led to the advent of programmable network processor (NP) architectures that incorporate symmetric multiprocessing, and block multi-threading. The paper presents an automated system-level ...
- articleMay 2006
On the performance of parallel implementations of an ADI scheme for parabolic PDEs on shared and distributed memory systems
International Journal of High Performance Computing and Networking (IJHPCN), Volume 4, Issue 5/6Pages 222–231https://doi.org/10.1504/IJHPCN.2006.013477In this paper we present two parallel programming approaches to solving parabolic partial differential equations with mixed derivative terms using Alternating Direction Implicit (ADI) schemes. The first approach uses the multithreading technique and is ...
- articleFebruary 2006
An Analysis of Fixed-Priority Schedulability on a Multiprocessor
A new feasibility test for preemptive scheduling of periodic or sporadic real-time tasks on a single-queue m -server system allows for arbitrary fixed task priorities and arbitrary deadlines. For the special case when deadline equals period and ...
- research-articleJune 2004
Optimizing the Execution of Multiple Data Analysis Queries on Parallel and Distributed Environments
IEEE Transactions on Parallel and Distributed Systems (TPDS), Volume 15, Issue 6Pages 520–532https://doi.org/10.1109/TPDS.2004.11Abstract--This paper investigates techniques for efficiently executing multiquery workloads from data and computation-intensive applications in parallel and/or distributed computing environments. In this context, we describe a database optimization ...
- ArticleMarch 1995
Symmetric multiprocessing for the AIX operating system
Support for the operation of PowerPC symmetric multiprocessing systems was introduced with Version 4 of the AIX operating system. This paper describes its evolution from the uniprocessor Version 3 implementation. It also discusses the kernel changes to ...