How do you use only one GPU out of several in the same PC?
Use something like this, where index is the gpu you want to use:
{
"algo": "cryptonight",
"platform_index": 0,
"pools": [
{
"url": "pool.monero.hashvault.pro:5555",
"user": "",
"pass": "x"
}
],
"api": {
"port": 4444
},
"threads": [
{"index": 0, "intensity": 1932},
{"index": 0, "intensity": 1932}
],
"profile": {
// ...
}
}