How to solo ?
Follow the guide in mining:
With a Parity client running, you can use any ethash miner (such as ethminer
https://github.com/ethereum-mining/ethminer) to mine Ellasim. To mine using your GPU, run "ethminer -G -F
http://localhost:8545".
You can optionally use Parity's Stratum support. To do this, start Parity with
parity --author walletaddress --chain "ellaism.json path as above" --stratum
In ethminer, run with parameter
ethminer -S 127.0.0.1:8008