hi,i have 2 pc's with a dual core processor and a core 2 duo processor.Is it possible to cluster them?
may be this link will help youhttps://wiki.ubuntu.com/UbuntuClusters
You can set up a Beowulf Cluster.But the procedure is little tricky.And your processors seem little weak to power up a useful cluster.And there are other factors like presence of GPU's etc. which need to be considered.
Using Mathematica 10 with Small Grid is an excellent way to do parallel computing.