Re: question about CUDA
- To: mathgroup at smc.vnet.net
- Subject: [mg115678] Re: question about CUDA
- From: Ivan Smirnov <ivan.e.smirnov at gmail.com>
- Date: Tue, 18 Jan 2011 05:49:31 -0500 (EST)
Can you see then any ways to boost performance with CUDA for searching of possible solutions of any diophantine equations with powers? 2011/1/17 Patrick Scheibe <pscheibe at trm.uni-leipzig.de> > Hi, > > this is not possible for one obvious and several other reasons. > The obvious one is, that it is not implemented and *maybe* will never be > for several reasons. > You cannot think of CUDA as some kind of extension which allows you to > run Mathematica code on the faster graphics card. Every function has to > be separately implemented for CUDA. > > The version 8 Mathematica has several function which use CUDA, mainly > for image processing and for matrix operations. Find an overview in the > doc-center here > > CUDALink/guide/CUDALink > > CUDA is best used for highly "data-parallel" algorithms [1] which is, as > far as I can say, not the case for Solve. > > Cheers > Patrick > > [1] http://en.wikipedia.org/wiki/Data_parallelism > > > On Mon, 2011-01-17 at 18:56 +0300, Ivan Smirnov wrote: > > Patrick, thanks for answer. I have such thoughts. > > Can you say, what additional code is needed to run Solve command in > > Mathematica 8 with CUDA? > > > > 2011/1/17 Patrick Scheibe <pscheibe at trm.uni-leipzig.de> > > Hi, > > > > no, this is not true. You can use CUDA enabled cards for > > computations > > even if this is the only card in the system. It should be > > clear, that > > then some resources of your graphics card may be used by other > > applications currently running. Another thing is that your > > CUDA program > > may use too much memory or has too many bugs and crashes your > > system.. > > this is the point where a second card become handy. For now, > > leave it > > like that and start playing with CUDA. The specification of > > your card > > here > > > > http://www.nvidia.com/object/product_geforce_8800_gt_us.html > > > > shows that you have 112 CUDA Cores and 512 MB Ram, which is > > fine to see > > the magic. > > > > Cheers > > Patrick > > > > > > > > On Mon, 2011-01-17 at 05:36 -0500, Ivan Smirnov wrote: > > > Hello. > > > I'm planning to start using CUDA. > > > If I have 8800GT card (it supports CUDA), can I start use > > CUDA computations > > > in Mathematica 8 with just this card or I need install one > > more card in that > > > PC? (I heard that one man said that supposedly there are > > needed 2 or more > > > cards as CUDA are parallel computations - is it true?). > > > > > > Ivan Smirnov > > > > > > > > > > > > > > >