mpich2 is also not being developed anymore [on windows]. Either should work.
[but I'm more familer with mpich1 - if you encounter issues] Satish On Thu, 24 Aug 2006, Julian wrote: > Hi, > > The link to mpich1 says this: > > MPICH.NT is no longer being developed. Please use MPICH2. MPICH.NT and > MPICH2 can co-exist on the same machine so it is not necessary to uninstall > MPICH to install MPICH2. But applications must be re-compiled with the > MPICH2 header files and libraries. > > So, is it ok if I use mpich2? > > Thanks, > Julian. > > > -----Original Message----- > > From: owner-petsc-users at mcs.anl.gov > > [mailto:owner-petsc-users at mcs.anl.gov] On Behalf Of Satish Balay > > Sent: Thursday, August 24, 2006 10:54 AM > > To: petsc-users at mcs.anl.gov > > Subject: Re: Intel Dual core machines > > > > If you plan to use windows recommend mpich1 as this is what > > PETSc is usually tested with [as far as installation is concerned]. > > > > http://www-unix.mcs.anl.gov/mpi/mpich1/mpich-nt/ > > > > Configure will automatically look for it - and use it. > > > > The scalability depends upon the OS, MPI impl and > > MemoryBandwidh numbers for this hardware. Don't know enough > > about the OS & MPI part - but the MemoryBandwidh part is easy > > to check based on the hardware you have. [The new core duo > > chips appear to have high memory bandwidth numbers - so I > > think it should scale well] > > > > But you should be concerned about this only for performance measurents > > - but not during development. [You can install MPI on a > > single cpu machine and use PETSc on it - for development] > > > > Satish > > > > On Thu, 24 Aug 2006, Julian wrote: > > > > > Hello, > > > > > > So far, I have been using PETSc on a single processor > > windows machine. > > > Now, I am planning on using it on a Intel Dual core > > machine. Before I > > > start running the installation scripts, I wanted to confirm > > if I can > > > use both the processors on this new machine just like how you would > > > use multiple processors on a supercomputer. > > > If yes, is there anything special that I need to do when > > installing PETSc? > > > I'm guessing I would have to install some MPI software... > > Which one do > > > you recommend for windows machines (I saw more than one windows MPI > > > software on the PETSc website) ? > > > > > > Thanks, > > > Julian. > > > > > > > > > >