NDLI: Toward a fully parallel multigrid in time algorithm in PETSc environment: A case study in ocean models

Content Provider	IEEE Xplore Digital Library
Author	Carracciuolo, L. D'Amore, L. Mele, V.
Copyright Year	2015
Description	Author affiliation: Univ. of Naples Federico II, Naples, Italy (D'Amore, L.; Mele, V.) \|\| Nat. Res. Council, Naples, Italy (Carracciuolo, L.)
Abstract	We consider linear systems that arise from the discretization of evolutionary models. Typically, solution algorithms are based on a time-stepping approach, solving for one time step after the other. Parallelism is limited to the spatial dimension only. Because time is sequential in nature, the idea of simultaneously solving along time steps is not intuitive. One approach to achieve parallelism in time direction is MGRIT algorithm [7], based on multigrid reduction (MGR) techniques. Here we refer to this approach as MGR-1D. Other kind of approach is the space-time multigrid, where time is simply another dimension in the grid. Analougsly, we refer to this approach as MGR-4D. In this work, motivated by the need of maximizing the availability of new algorithms to climate science, we propose a new parallel approach that mixes both the MGR-1D idea and classical space multigrid methods. We refer to it as the MGR3D+1 approach. Moreover, we discuss their implementation in the high performance scientific library PETSc, as starting point to develope more efficient and scalable algorithms in ocean models.
Starting Page	595
Ending Page	598
File Size	935707
Page Count	4
File Format	PDF
ISBN	9781467378123
e-ISBN	9781467378130
DOI	10.1109/HPCSim.2015.7237098
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-20
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computational modeling Scalability Software algorithms Parallel processing Libraries Software Mathematical model
Content Type	Text
Resource Type	Article

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

Insertion of PETSc in the NEMO stack software driving NEMO towards exascale computing

Parallelization of Thermal Recovery Simulation Based on PETSc

A Unifying Programming Model for Parallel Graph Algorithms

Iterative reconstruction of CT images with PETSc

Iterative reconstruction of CT images with PETSc

A BSP performance prediction model for parallel multigrid algorithms

Computer physics challenges in LIT-JINR

High level modeling for parallel executions of nested loop algorithms

A Compile-Time Cost Model for Automatic OpenMP Decoupled Software Pipelining Parallelization

Toward a fully parallel multigrid in time algorithm in PETSc environment: A case study in ocean models

Similar Documents

Insertion of PETSc in the NEMO stack software driving NEMO towards exascale computing

Parallelization of Thermal Recovery Simulation Based on PETSc

A Unifying Programming Model for Parallel Graph Algorithms

Iterative reconstruction of CT images with PETSc

Iterative reconstruction of CT images with PETSc

A BSP performance prediction model for parallel multigrid algorithms

Computer physics challenges in LIT-JINR

High level modeling for parallel executions of nested loop algorithms

A Compile-Time Cost Model for Automatic OpenMP Decoupled Software Pipelining Parallelization

Toward a fully parallel multigrid in time algorithm in PETSc environment: A case study in ocean models