All CPU related settings contains in one cpu
object in config file, CPU backend allow specify multiple profiles and allow switch between them without restrictions by pool request or config change. Default auto-configuration create reasonable minimum of profiles which cover all supported algorithms.
Example below demonstrate all primary ideas of flexible profiles configuration:
"rx/wow"
Exact match to algorithmrx/wow
, defined 4 threads without CPU affinity."cn"
Default failback profile for allcn/*
algorithms, defined 2 threads with CPU affinity, another failback profiles iscn-lite
,cn-heavy
andrx
."cn-lite"
Default failback profile for allcn-lite/*
algorithms, defined 2 double threads with CPU affinity."cn-pico"
Alternative short object format."custom-profile"
Custom user defined profile."*"
Failback profile for all unhandled by other profiles algorithms."cn/r"
Exact match, alias to profilecustom-profile
."cn/0"
Exact match, disabled algorithm.
{
"cpu": {
"enabled": true,
"huge-pages": true,
"hw-aes": null,
"priority": null,
"asm": true,
"rx/wow": [-1, -1, -1, -1],
"cn": [
[1, 0],
[1, 2]
],
"cn-lite": [
[2, 0],
[2, 2]
],
"cn-pico": {
"intensity": 2,
"threads": 8,
"affinity": -1
},
"custom-profile": [0, 2],
"*": [-1],
"cn/r": "custom-profile",
"cn/0": false
}
}
Threads can be defined in 3 formats.
[
[1, 0],
[1, 2],
[1, -1],
[2, -1]
]
Each line represent one thread, first element is intensity, this option was known as low_power_mode
, possible values is range from 1 to 5, second element is CPU affinity, special value -1
means no affinity.
[-1, -1, -1, -1]
Each number represent one thread and means CPU affinity, this is default format for algorithm with maximum intensity 1, currently it all RandomX variants and cryptonight-gpu.
{
"intensity": 2,
"threads": 8,
"affinity": -1
}
Internal format, but can be user defined.
Enable (true
) or disable (false
) CPU backend, by default true
.
Enable (true
) or disable (false
) huge pages support, by default true
.
Force enable (true
) or disable (false
) hardware AES support. Default value null
means miner autodetect this feature. Usually don't need change this option, this option useful for some rare cases when miner can't detect hardware AES, but it available. If you force enable this option, but your hardware not support it, miner will crash.
Mining threads priority, value from 1
(lowest priority) to 5
(highest possible priority). Default value null
means miner don't change threads priority at all.
Enable/configure or disable ASM optimizations. Possible values: true
, false
, "intel"
, "ryzen"
, "bulldozer"
.
Allow override automatically detected Argon2 implementation, this option added mostly for debug purposes, default value null
means autodetect. Other possible values: "x86_64"
, "SSE2"
, "SSSE3"
, "XOP"
, "AVX2"
, "AVX-512F"
. Manual selection has no safe guards, if you CPU not support required instuctions, miner will crash.