 |
Multicomputer Technology Initiative
|
Comparison of results
This section presents a comparison of PVM and MPICH, making use of the
the various algorithm implementations that have been performed at the RRSG.
The technologies
Both PVM and MPICH have been used to implement a number of algorithms and
the results given here take the form of a comparison of these technologies,
based on the implemented algorithms. It must be stressed that, while certain
general observations may be made about the technologies, the comparison
is based strictly on the algorithms that we have implemented and as such
do not necessarily represent the general case.
A number of comparisons of the PVM and MPI have already been performed
elsewhere:
Note that there are a number of Open Source and Commercial implementations
of the MPI standard, and it is important to realise that the various implementations
can have quite different performance characteristics.
PBIL algorithm
The PBIL algorithm has been implemented using PVM and MPICH. The results
for these implementations can be found in the PVM
results and MPICH results sections.
The graph on the right shows timings for different numbers of processors
measured for the PVM and MPICH implementations of the PBIL algorithm. It
should be noted that in all cases, the MPICH implementation is slower than
that using PVM.
to MTI home page