Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | ACM Digital Library |
---|---|
Author | Pellegrini, Alessandro Vitali, Roberto Quaglia, Francesco |
Abstract | A recent work has presented the design and implementation of a software library, named DyMeLoR, supporting transparent log/restore facilities for optimistic simulation objects with generic memory layout. This library offers the possibility to allocate/deallocate memory chunks via standard API, and performs log/restore of the object state via pack/unpack techniques,exploiting ad-hoc meta-data concisely identifying the object state layout at each point in simulation time. In this paper we complement such a library with a software architecture offering the following additional advantages: (i) run-time identification of chunk updates within the dynamic memory map,(ii) reduced checkpoint latency and increased effectiveness in memory usage thanks to log/restore facilities based on (periodic) snapshots of the whole simulation object state, taken via the incremental copy of the modified (dirty) chunks only.Our approach is based on software instrumentation techniques (suited for LINUX and the ELF format), targeting memory update references performed by the application level software, and on a lightweight run-time monitoring mechanism providing minimal overhead while tracking the exact memory addresses and the size of memory areas dirtied by the execution of each event. Also,our design has been oriented to portability across 32-bit and64-bit Intel compliant architectures, thus covering a wide spectrum of off-the-shelf machines. |
Starting Page | 45 |
Ending Page | 53 |
Page Count | 9 |
File Format | |
ISBN | 9780769537139 |
ISSN | 10874097 |
DOI | 10.1109/PADS.2009.24 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2009-06-22 |
Access Restriction | Subscribed |
Subject Keyword | Optimistic simulation incremental checkpointing performance optimization |
Content Type | Text |
Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
Loading...
|