CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Announcements from Other Sources

SpeedIT 2.1 has now better preconditioners on GPU

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree1Likes
  • 1 Post By Lukasz

Reply
 
LinkBack Thread Tools Display Modes
Old   May 24, 2012, 17:09
Default SpeedIT 2.1: OpenFOAM on GPU can be run with better preconditioners
  #1
Member
 
Lukasz Miroslaw
Join Date: Dec 2009
Location: Poland
Posts: 64
Rep Power: 7
Lukasz is on a distinguished road
Send a message via Skype™ to Lukasz
SpeedIT 2.1 contains a new set of preconditioners:
• Algebraic Multigrid with Smoothed Aggregation (AMG)
• Approximate Inverse (AINV)

Our tests showed that OpenFOAM simulations on a single GPU can be up to 3.5x faster compared to CG with DIC/DILU and up to 1.6x faster if you run GAMG on CPU.

FYI, SpeedIT provides a set of accelerated solvers for sparse linear systems of equations. Thanks to CMRS format SpeedIT is one the fastests technologies due to very fast SpMV operations. The library runs with C/C++ and Fortran. It can also run with OpenFOAM.

See our report for details.
SirWombat likes this.

Last edited by Lukasz; May 31, 2012 at 05:10. Reason: Description was not clear enough.
Lukasz is offline   Reply With Quote

Reply

Tags
amg solver, cuda, gamg, gpu, speedit
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
including third party GPU library in OpenFOAM spelai OpenFOAM Programming & Development 3 November 2, 2012 06:06
GPU Linear Solvers for OpenFOAM gocarts OpenFOAM Announcements from Other Sources 35 March 1, 2012 21:41
New Release ofgpu v0.2: GPU Linear Solvers for OpenFOAM gocarts OpenFOAM Announcements from Other Sources 2 September 19, 2011 09:09
NVIDIA Tesla GPU ztdep Hardware 0 December 7, 2010 22:00
New Nvidia gpu aimed at gpgpu bmeagle OpenFOAM 0 November 9, 2006 10:41


All times are GMT -4. The time now is 18:21.