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Split array and scalar data cache: A comprehensive study of data cache organization.

Description: Existing cache organization suffers from the inability to distinguish different types of localities, and non-selectively cache all data rather than making any attempt to take special advantage of the locality type. This causes unnecessary movement of data among the levels of the memory hierarchy and increases in miss ratio. In this dissertation I propose a split data cache architecture that will group memory accesses as scalar or array references according to their inherent locality and will su… more
Date: August 2007
Creator: Naz, Afrin
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A New N-way Reconfigurable Data Cache Architecture for Embedded Systems

Description: Performance and power consumption are most important issues while designing embedded systems. Several studies have shown that cache memory consumes about 50% of the total power in these systems. Thus, the architecture of the cache governs both performance and power usage of embedded systems. A new N-way reconfigurable data cache is proposed especially for embedded systems. This thesis explores the issues and design considerations involved in designing a reconfigurable cache. The proposed reconf… more
Date: December 2009
Creator: Bani, Ruchi Rastogi
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Multi-level Hybrid Cache: Impact and Feasibility

Description: Storage class memories, including flash, has been attracting much attention as promising candidates fitting into in today's enterprise storage systems. In particular, since the cost and performance characteristics of flash are in-between those of DRAM and hard disks, it has been considered by many studies as an secondary caching layer underneath main memory cache. However, there has been a lack of studies of correlation and interdependency between DRAM and flash caching. This paper views this p… more
Date: February 1, 2012
Creator: Zhang, Zhe; Kim, Youngjae; Ma, Xiaosong; Shipman, Galen M & Zhou, Yuanyuan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Techniques for Improving Uniformity in Direct Mapped Caches

Description: Directly mapped caches are an attractive option for processor designers as they combine fast lookup times with reduced complexity and area. However, directly-mapped caches are prone to higher miss-rates as there are no candidates for replacement on a cache miss, hence data residing in a cache set would have to be evicted to the next level cache. Another issue that inhibits cache performance is the non-uniformity of accesses exhibited by most applications: some sets are under-utilized while othe… more
Date: May 2011
Creator: Nwachukwu, Izuchukwu Udochi
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Geologic and Lithic Analysis of the Red River Cache

Description: The Red River Cache is an assemblage of 33 bifaces, found in Cooke County, along Cache Creek, a tributary to the Red River. Also found with the cache was a hearth which yielded charcoal for AMS dating which returned an age of 2770- 2710 Cal YBP placing the cache in the Late Archaic. The geologic investigation of Cache Creek established 3 Holocene allostratigraphic units that provide information depositional environments adjacent to the Red River. Lithic analysis explored the production of bifac… more
Date: May 2011
Creator: Gregory, Brittney
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Towards an Accurate Performance Modeling of Parallel SparseFactorization

Description: We present a performance model to analyze a parallel sparseLU factorization algorithm on modern cached-based, high-end parallelarchitectures. Our model characterizes the algorithmic behavior bytakingaccount the underlying processor speed, memory system performance, aswell as the interconnect speed. The model is validated using theSuperLU_DIST linear system solver, the sparse matrices from realapplications, and an IBM POWER3 parallel machine. Our modelingmethodology can be easily adapted to stud… more
Date: May 26, 2006
Creator: Grigori, Laura & Li, Xiaoye S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effects of Alterations to Low Gradient Reaches of Utah Streams

Description: This report describes an investigation of the effects of stream channelization on fish and macro-invertebrates in low gradient reaches of Blacksmith Fork River and the Logan River in the floodplain of Cache Valley in northern Utah. Channelization adversely affected both fish and macro-invertebrate populations and biomass, with the severity of impact directly related to the amount and duration of disturbance of the physical habitat.
Date: April 1980
Creator: Wydoski, Richard S. & Helm, William T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cache-Aided General Linear Function Retrieval

Description: This article designs a novel coded caching scheme that outperforms uncoded caching schemes that either use unicast transmissions or let each user recover all files in the library. It extends the scope of the authors’ past work that only considered the class of linear functions that operate element-wise over the files.
Date: December 26, 2020
Creator: Wan, Kai; Sun, Hua; Ji, Mingyue; Tuninetti, Daniela & Caire, Giuseppe
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Memory-intensive benchmarks: IRAM vs. cache-based machines

Description: The increasing gap between processor and memory performance has led to new architectural models for memory-intensive applications. In this paper, we explore the performance of a set of memory-intensive benchmarks and use them to compare the performance of conventional cache-based microprocessors to a mixed logic and DRAM processor called VIRAM. The benchmarks are based on problem statements, rather than specific implementations, and in each case we explore the fundamental hardware requirements … more
Date: September 29, 2001
Creator: Gaeke, Brian G.; Husbands, Parry; Kim, Hyun Jin; Li, Xiaoye S.; Moon, Hyun Jin; Oliker, Leonid et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Grid collector: An event catalog with automated file management

Description: High Energy Nuclear Physics (HENP) experiments such as STAR at BNL and ATLAS at CERN produce large amounts of data that are stored as files on mass storage systems in computer centers. In these files, the basic unit of data is an event. Analysis is typically performed on a selected set of events. The files containing these events have to be located, copied from mass storage systems to disks before analysis, and removed when no longer needed. These file management tasks are tedious and time cons… more
Date: October 17, 2003
Creator: Wu, Kesheng; Zhang, Wei-Ming; Sim, Alexander; Gu, Junmin & Shoshani, Arie
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

Optimizing Archival Replay by Eliminating Unnecessary Traffic to Web Archives

Description: Presentation for the IIPC General Assembly and Web Archiving Conference virtually held on May 23-25, 2022. This presentation presents a solution to unnecessary HTTP traffic to web archives. The proposed solution is to optimize archival replay using HTTP Cache-Control response headers.
Date: May 24, 2022
Creator: Garg, Kritika; Jayanetti, Himarsha R.; Alam, Sawood; Weigle, Michele C. & Nelson, Michael L.
Item Type: Refine your search to only Presentation
Partner: International Internet Preservation Consortium
open access

Authenticating Cache

Description: The aim of the Authenticating Cache architecture is to ensure that machine instructions in a Read Only Memory (ROM) are legitimate from the time the ROM image is signed (immediately after compilation) to the time they are placed in the cache for the processor to consume. The proposed architecture allows the detection of ROM image modifications during distribution or when it is loaded into memory. It also ensures that modified instructions will not execute in the processor-as the cache will not … more
Date: June 1, 2012
Creator: Smith, Tyler Barratt & Urrea, Jorge Mario
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Accurate modeling of cache replacement policies in a Data-Grid.

Description: Caching techniques have been used to improve the performance gap of storage hierarchies in computing systems. In data intensive applications that access large data files over wide area network environment, such as a data grid,caching mechanism can significantly improve the data access performance under appropriate workloads. In a data grid, it is envisioned that local disk storage resources retain or cache the data files being used by local application. Under a workload of shared access and hig… more
Date: January 23, 2003
Creator: Otoo, Ekow J. & Shoshani, Arie
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Benchmark-based Page Replacement (BBPR) Strategy: A New Web Cache Page Replacement Strategy

Description: World Wide Web caching is widely used through today's Internet. When correctly deployed, Web caching systems can lead to significant bandwidth savings, network load reduction, server load balancing, and higher content availability. A document replacement algorithm that can lower retrieval latency and yield high hit ratio is the key to the effectiveness of proxy caches. More than twenty cache algorithms have been employed in academic studies and in corporate communities as well. But there are so… more
Date: May 2003
Creator: He, Wei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Exploring Shared Memory Protocols in FLASH

Description: ABSTRACT The goal of this project was to improve the performance of large scientific and engineering applications through collaborative hardware and software mechanisms to manage the memory hierarchy of non-uniform memory access time (NUMA) shared-memory machines, as well as their component individual processors. In spite of the programming advantages of shared-memory platforms, obtaining good performance for large scientific and engineering applications on such machines can be challenging. Bec… more
Date: April 1, 2007
Creator: Horowitz, Mark; Kunz, Robert; Hall, Mary; Lucas, Robert & Chame, Jacqueline
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Scientific Data Management Integrated Software Infrastructure Center

Description: This work provides software that enables scientific applications to more efficiently access available storage resources at different levels of interfaces. We developed scalable techniques and optimizations for PVFS parallel file systems, MPI I/O, and parallel netCDF I/O library. These implementations were evaluated using production application I/O kernels as well as popular I/O benchmarks and demonstrated promising results. The software developed under this work has been made available to the p… more
Date: October 29, 2008
Creator: Choudhary, A. & Liao, W.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optimizing transformations of stencil operations for parallel cache-based architectures

Description: This paper describes a new technique for optimizing serial and parallel stencil- and stencil-like operations for cache-based architectures. This technique takes advantage of the semantic knowledge implicity in stencil-like computations. The technique is implemented as a source-to-source program transformation; because of its specificity it could not be expected of a conventional compiler. Empirical results demonstrate a uniform factor of two speedup. The experiments clearly show the benefits of… more
Date: June 28, 1999
Creator: Bassetti, F. & Davis, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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