[mpich-discuss] Why is my quad core slower than cluster

[zach]

I am using a cluster.
Each pc has two cpus and they are Xeon. Each cpu has 4GB, i think red
hat is running.

I also use a pc at home- quad core intel chip, 8gb ram, ubuntu.

Both are using mpich.

I have found that my home pc is only running about 1/3 the speed of
the cluster, and the number of processes (4) and code is the same.

Can anyone tell me if this is typical, and why, or am I not optimizing
something properly?

Thanks
Zach