If you need parallel direct solvers - then you can try MUMPS or
Spooles or SuperLU_Dist external packages with PETSc.
I don't think they work on windows - so you might have to use linux
[with a f90 compiler for MUMPS]
The default LU in PETSc is sequential.
Satish
On Thu, 24 Aug 2006, Julian wr
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
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
thanks, I will try this out.
I have been using petsc on a single cpu machine... And I want to see how
much faster it is on a dual core.
> -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,
Thanks for the reply.
Do I really need to use ROCKS if I'm just gonna use a single dual core
machine ? Is that considered a cluster ?
Also, what MPI software does ROCKS install ? I saw some mention of openMPI
1.1
Julian.
> -Original Message-
> From: owner-petsc-users at mcs.anl.gov
>
Hello,
I looked at the linear solvers summary page and I could find three direct
solvers that do not use any external packages. But I could find an example
for only one of them (LU). The link to the cholesky solver does not have any
example file. I am new to PETSc and I don't fully understand how
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
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
Julian,
No, you do not need Rocks (and in fact it is a Linux-based system).
You mentioned the need to install MPI (which you do need for
PETSc), and I was just pointing out that there are clustering
software solutions that make a lot of getting the clusters set
up much simpler than doing it all yo
Hi Julian,
No problem running on dual cpu machines. You just need to have MPI
set up correctly.
On our cluster, we use ROCKS, which does everything more or less
automagically.
http://www.rocksclusters.org/wordpress/
Randy
Julian wrote:
> Hello,
>
> So far, I have been using PETSc on a single
I have been looking for a commercial cluster rental, with only very little
success.
The only one I've found so far is Tsunmaic Technologies:
I've looked at several of the University super-computer centers, but they don't
appear to be easy to rent cluster time from if you're not an academic.
We h
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