Quote from: ssl303 on December 28, 2013, 10:59:35 AM

I'm solo mining xpm with 10 computers using jhprimeminer -xpm option. However, all of them are connected to one server with Primecoin client.
I just realized that the all the computers are solving the same blocks.
New Block: 332966
The numbers are all the same across all the computers, and I just got an orphan block.
Are they solving different parts of that block, or are they solving the same thing redundantly, producing an orphan block? I hope it's the first case. Other wise, I'm just wasting the energy. Sad

One way make sure that all the miners has unique work is to specify different addresses in the -xpm parameter.