Customer is saying: We are performing nonlinear SNES solvers with linear KSP solves inside of them. The KSP solver types that we use are CG, CGS, BiCG, BiCGS, GMRES, Richardson, and LSQR; though Richardson and LSQR are very infrequently used. We use a block Jacobi preconditioner with the following sub-preconditioner types: None, ILU, LU, ICC, Cholesky, and Jacobi. The global system sizes range from 10k x 10k to 20M x 20M depending on model size. We typically run the smaller models on 4-core workstations and the larger models with between 32 and 128 cores on an HPC. The workstations will only have a single GPU, but the HPC may have one GPU per 16 cores (1 GPU per HPC node).
Antoine From: petsc-dev-bounces at mcs.anl.gov [mailto:[email protected]] On Behalf Of Paul Mullowney Sent: Wednesday, March 13, 2013 1:43 PM To: For users of the development version of PETSc Subject: Re: [petsc-dev] PETSc port to OpenCL Hi Antoine, I don't think one can claim that PETSc supports OpenCL right now. However, I think progress has definitely been made in getting core vector computations (for a Krylov algorithm) to run via OpenCL. Karl, do you have any comment on this? Once those are in place, it wouldn't be too difficult to get a prototype matrix class into PETSc where the other core pieces of a solve, mainly SpMV (and potentially the triangular solves) run on AMD devices. The real question is, what algorithms does your customer want to run? i.e. is it a KSP solve? What is the preconditioner? How big is the system? Are multiple GPUs neeeded? -Paul We (AMD FirePro) have a customer using PETSc and trying to port their thermal/ablation solver code to OpenCL. Do you support AMD GPUs and OpenCL? Ref: Comparing the AMD FirePro S10000 to the Nvidia Tesla K10, K20 and K20X<http://fireuser.com/blog/comparing_the_amd_firepro_s10000_to_the_tesla_k10_k20_and_k20x> AMD FirePro(tm) S10000 Server Graphics<http://www.amd.com/us/products/workstation/graphics/firepro-remote-graphics/S10000/Pages/S10000.aspx#1> Heterogeneous Compute - Tools<http://developer.amd.com/tools/> Regards, Antoine Reymond Sr. Strategic Alliances Manager AMD Professional Graphics O: +(1) 949 336 6244 M: +(1) 949 870 2200 [cid:image001.jpg at 01CE2627.A71B3040] [52324A_FireProTechLogo_S_E s] Visit us at: Twitter<https://twitter.com/AMDFirePro> | amd.com<http://www.fireprographics.com/> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20130321/6d89245a/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 1076 bytes Desc: image001.jpg URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20130321/6d89245a/attachment.jpg> -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.png Type: image/png Size: 1268 bytes Desc: image002.png URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20130321/6d89245a/attachment.png>
