On Friday March 18 2011 03:01:23 Gennadiy Rishkin wrote: > New question #149552 on DOLFIN: > https://answers.launchpad.net/dolfin/+question/149552 > > Hi, > > I've just installed FEniCs and it looks like an excellent library.
Thanks! > I have a few questions. > CUDA : > Is it possible to generate (GPU) CUDA code in general and for massively > parallel assembly in particular? If it is, how is this done? There are experimental code which do this. But none of it is merged into main. Take a look at: https://code.launchpad.net/~florian-rathgeber/dolfin/gpu-wrappers and this email discussion: https://lists.launchpad.net/dolfin/msg04040.html Eventhough there is a dolfin branch you also need patches for ffc and I guess also ufc to make this work. > OpenMP/Threads: > Is it possible to use OpenMP/Threads? Is it turned on by default, i,e., > does Dolfin automatically recognise a multicore machine? If it's not > automatic, what would I have to do to use it? In Python you can just set the number of threads to a nonzero value: parameters["num_threads"] = 4 But it is still under development. If I am not wrong is only cell assemble supported for now. > Linear Algebra Backend: > How to I change the backend to use Trilinos? I notice that it uses Petsc by > default. parameters["linear_algebra_backend"] = "Epetra" But you need to have compiled DOLFIN with trilinos support. Johan > Gennadiy _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
