On Wed, Mar 07, 2012 at 08:59:31PM +0000, Garth N. Wells wrote: > On 7 March 2012 20:18, Anders Logg <[email protected]> wrote: > > On Wed, Mar 07, 2012 at 07:47:17PM +0000, Garth N. Wells wrote: > >> On 7 March 2012 19:37, Fredrik Heffer Valdmanis <[email protected]> wrote: > >> > 2012/3/7 Anders Logg <[email protected]> > >> >> > >> >> On Wed, Mar 07, 2012 at 04:24:13PM +0100, Fredrik Heffer Valdmanis > >> >> wrote: > >> >> > I think it might be a good time to bring this thread up again now. My > >> >> > Dorsal branch is still working fine, but there are a couple of issues > >> >> > that > >> >> > should be discussed before merging: > >> >> > > >> >> > 1: As mentioned in my first email, the user has to set "default > >> >> > CUDA_DIR=<path to cuda installation>" in the platform file, and add > >> >> > the > >> >> > packages cusp and thrust to the beginning of the list of packages to > >> >> > build > >> >> > PETSc with Cusp support. This might not be the best way to solve this. > >> >> > One > >> >> > could of course set CUDA_DIR in dorsal/local.cfg instead, but the list > >> >> > of > >> >> > packages to install still has to be modified. Any opinions? Could this > >> >> > be > >> >> > (semi) automated? > >> >> > >> >> How about making a new package file called petscwithcuda or petsc-cuda > >> >> or > >> >> whatever naming schem Harish suggests. > >> >> > >> >> I think it is OK to require the user to set the environment variable > >> >> CUDA_DIR before running Dorsal, either as part of the user's > >> >> environment setup or in local.cfg. > >> >> > >> >> > >> >> > 2: Thrust and Cusp only comes packaged in .zip-files, which Dorsal > >> >> > doesn't > >> >> > support as far as I can see. To get around this this, {thrust, > >> >> > cusp}.package currently pull the latest hg repositories from Google > >> >> > Code. > >> >> > To make these development versions play nice with petsc-3.2-p6, I have > >> >> > had > >> >> > to add a patch to PETSc. A possible solution would be to package > >> >> > stable > >> >> > versions of cusp and thrust ourselves and host them on > >> >> > fenicsproject.org. PETSc-dev > >> >> > works fine with these development versions, so we can skip the > >> >> > patching > >> >> > once 3.2-p7 is released. > >> >> > >> >> I don't fully understand. Are there stable Thrust and Cusp packages > >> >> available which work with stable PETsc? > >> >> > >> > Yes, the latest stable versions of Cusp (0.3.0 [1]) and Thrust (1.5.1 > >> > [2]) > >> > work fine with PETSc 3.2-p6, but they are only available as .zip-files, a > >> > packaging scheme which is not supported by Dorsal as far as I understand. > >> > Hence, we must either use the mercurial repositories, which is a type of > >> > repo that Dorsal can pull, or we must repackage Cusp and Thrust in an > >> > archive format that Dorsal supports and host them ourselves. It is not > >> > really an alternative to use development versions, so we should repackage > >> > Cusp and Thrust. Or implement zip-support in Dorsal ... > >> > > >> > >> An up-to-date Thrust is part of the CUDA toolkit. > >> > >> Having installed the CUDA toolkit a number of times recently, I still > >> don't think that it's ready for Dorsal. > > > > I don't understand this objection. > > Where's the 'objection'? It's an opinion based on my experience of > installing the CUDA toolkit.
It sounded like an objection to me. Maybe with your experience you could help to tweak the package files when they are added. -- Anders > Garth > > > It's about adding a couple of > > package files. It's not like we're making anything else depend on > > those packages. > > > > > > > >> Garth > >> > >> > [1] http://code.google.com/p/cusp-library/downloads/list > >> > [2] http://code.google.com/p/thrust/downloads/list > >> > > >> > > >> > _______________________________________________ > >> > Mailing list: https://launchpad.net/~dorsal > >> > Post to : [email protected] > >> > Unsubscribe : https://launchpad.net/~dorsal > >> > More help : https://help.launchpad.net/ListHelp > >> > > > > _______________________________________________ Mailing list: https://launchpad.net/~dorsal Post to : [email protected] Unsubscribe : https://launchpad.net/~dorsal More help : https://help.launchpad.net/ListHelp
