Hi,
On Fri, 11 Jun 2004, Joachim Reichelt wrote:
> does it make sense to activate the -parallel in ifort for sander?
> We have a 2 proc Itanium system and I do not want to install mpi at now.
There is no -parallel option in amber8.
If your system does not have a native mpi then you must have access
to an installed mpi implementation.
../configure -parallel
Usage: ./configure [flags] [compiler/architecture]
....
Parallel option flags:
-lam Use LAM/MPI (LAM_HOME must be set)
-mpi Use native MPI
-mpich Use MPICH (MPICH_HOME must be set)
-mplite Use MP_Lite (MPLITE_HOME must be set)
-nopar Explicit request of no MPI, the default
-scali Use SCALI (SCALI_HOME must be set)
....
Sense is relative. As a general observation,
in amber8 superlinear speedup for 2 processor mpi is
less likely than in amber7.
"... and yet there is something so amiable
in the prejudices of a young mind,
that one is sorry to see them give way to
the reception of more general opinions."
Jane Austin
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Received on Fri Jun 11 2004 - 16:53:01 PDT
