have anyone are mining XMR by solo or by P2Pool?
Tell me how to do it ?
P2Pool is currently not implemented. You could solo CPU mine from the daemon:
start_mining <your_address> <number_of_threads>
You could solo mine on a single address from multiple machines. Currently if you have 3500 H/s you should get about a block each 2 days on average (more if you are lucky or less if you are not). With the difficulty raising each day I would not recommend you to solo mine with less then 2000-3000 H/s, but if you have 7000 H/s (this is a lot) you should solo mine for sure. If you want to GPU solo mine you should set a private pool of yours in order to do it (the pool software is open source), because you can't GPU mine from the daemon. If you set a pool you should automate the checking if the daemon freezes and restart it, because it's happening with the current code and you won't find blocks.