TR32-Database: Database of Transregio 32

[1630] - Enhancing speed and scalability of the ParFlow simulation code

All available metadata of the dataset are listed below. Some features are available, e.g. download of dataset or additional description file.

Features
Citation
Burstedde, C., Fonseca, J. A., Kollet, S., 2017. Enhancing speed and scalability of the ParFlow simulation code. arxiv, 1 - 23.
Identification
Title(s):Main Title: Enhancing speed and scalability of the ParFlow simulation code
Description(s):Abstract: Regional hydrology studies are often supported by high resolution simulations of subsurface flow that require expensive and extensive computations. Efficient usage of the latest high performance parallel computing systems becomes a necessity.The simulation software ParFlow has been demonstrated to meet this requirement and shown to have excellent solver scalability for up to 16,384 processes. In the present work we show that the code requires further enhancements in order to fully take advantage of current petascale machines. We identify ParFlow’s way of parallelization of the computational mesh as a central bottleneck. We propose to reorganize this subsystem using fast mesh partition algorithms provided by the parallel adaptive mesh refinement library p4est. We realize this in a minimally invasive manner by modifying selected parts of the code to reinterpret the existing mesh data structures. We evaluate the scaling performance of the modified version of ParFlow, demonstrating good weak and strong scaling up to 458k cores of the Juqueen supercomputer, and test an example application at large scale.
Responsible Party
Creator(s):Principal Investigator: Carsten Burstedde
Author: Jose A. Fonseca
Principal Investigator: Stefan Kollet
Publisher:arxiv
Topic
TR32 Topic:Other
Related Sub-project(s):D8
Subject(s):CRC/TR32 Keywords: Parallel Computing, Numerical Simulation, Groundwater Flow Model
File Details
File Name:pf_paper.pdf
Data Type:Text
File Size:1094 kB (1.068 MB)
Date(s):Date Submitted: 2017-02-22
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
Constraints
Download Permission:OnlyTR32
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:TR32DB Data policy agreement
Geographic
North:-no map data
East:-
South:-
West:-
Measurement Region:None
Measurement Location:--None--
Specific Informations - Publication
Status:InReview
Review:NoPeerReview
Year:2017
Type:Article
Article Type:Journal
Source:arxiv
Number Of Pages:23
Page Range:1 - 23
Metadata Details
Metadata Creator:Jose Fonseca
Metadata Created:2017-04-03
Metadata Last Updated:2017-04-03
Subproject:D8
Funding Phase:3
Metadata Language:English
Metadata Version:V41
Dataset Metrics
Page Visits:55
Metadata Downloads:0
Dataset Downloads:0
Dataset Activity
Features