CCminer(SP-MOD) Modded GPU kernels.

[bathrobehero]

Anybody tested it on the 970 yet? 960 is untested. What do you get?

Nice one, thanks!

A 5 x 970 rig fluctuates between 357-388 (so 71.4-77.6) after the initial climb (2-3 minutes). Every silentarmy build I tried fluctuates quite a bit. 130W per card.

Some notes:
- it looks like the -cv parameter doesn't work; it always uses silentarmy (not an issue);
- the maximum card/thread number is 8 (for example nothing matters after -cd 0 0 1 1 2 2 3 3);
- forcing AVX2 (-e 2) even if the CPU doesn't support it (and obviously not CPU mining, -t 0) seems to give a small boost.

[sp_]

the only problem i still see is that the hashrate fluctuate too much from 630 sol to 680+, but this was true in any build, so something isn't done properly in the code

The statistics is the average of the shares found in 30 seconds. I should increase this to 2000seconds in the next builds. I use 30 secs when developing to check if the cards trottle and get instant feedback on the speed.

[antantti]

4x970 went from ~300 (zawawawa-r6) to ~340, oc + p0, tdp 85-95%, W7 + i5. Cpu usage max 3%.

[_javi_]

i dont find the -i parameter in help.

what´s -i 0 0 ??

[sp_]

i dont find the -i parameter in help.

what´s -i 0 0 ??

Sorry the parameter for 2 threads on one gpu is  -cd 0 0

2 threads per gpu

There is a bug that only allow 8 threads. Will fix it later.

-cd 0 0 1 1 2 2 3 3 will run with 2 threads pr gpu in a 4 card rig.

[giagge]

No have a bug in my release, use -cd 0 1 for 2 gtx 1070 , and have 110 sol for gtx 1070 with 220 sol total .

[sp_]

There is a bug if you use the -cd parameter with more than 8 numbers. Number 9, 10... and upwards will be ignored.

[Masked_Immortal]

hm...
according to whattomine zec has less profit than eth mining at least for my GTX 970

[sp_]

That's because the zcash dropped another 13% today on a 1MUSD volume

[tbearhere]

Cant get msvs 2015 to fully install on my vista computer   wont run new zcash miner  and im running with old drivers.
But a good increase on windows. Thx sp

[mstang83]

here is the build

Zcash sp-mod #1

https://github.com/sp-hash/ccminer/releases/tag/zcash-spmod1

sp_, you're the man!! Thanks!!!

[bensam1231]

hm...
according to whattomine zec has less profit than eth mining at least for my GTX 970

Yup, it's been that way for days, even with 100 sol it's not worth mining on a 1070 compared to Ethereum, especially Eth dual mining.

[sp_]

Yup, it's been that way for days, even with 100 sol it's not worth mining on a 1070 compared to Ethereum, especially Eth dual mining.

But electricity is expensive in the winter.

Run zcash sp-mod #1 with -500 on the memory clock and 55% tdp. Almost Half the power compared to etherum+sia. And a boost in the hashrate compared to stock clocks.

[tbearhere]

Yup, it's been that way for days, even with 100 sol it's not worth mining on a 1070 compared to Ethereum, especially Eth dual mining.

But electricity is expensive in the winter.

Run zcash sp-mod #1 with -500 on the memory clock and 55% tdp. Almost Half the power compared to etherum+sia.

Sp on that tdp do you set it manually in afterburner ?

[sp_]

In afterburner slide the  Power limit to the left

[reb0rn21]

The best would be to use freq/voltage graph and lock desired freq/vol with "L" but problem its only apply to one GPU per rig, so each GPU need to be done manualy
Unwinder sad its designed as that because each GPU have different freq/volt table, which is shame

Also sliding TDP to 60% and OC-ing you can get undervolt but if miner is low GPU usage it gona "boost" as insane so GPU will crash, I would like to see some new OC tool that can define static freq/voltage to all same GPU in rigs!

[sp_]

Also sliding TDP to 60% and OC-ing you can get undervolt but if miner is low GPU usage it gona "boost" as insane so GPU will crash, I would like to see some new OC tool that can define static freq/voltage to all same GPU in rigs!

Not OC(overclocking). UC(Underclock) the memory of the gpu -500mhz(-1000mhz). Sp-mod #1 is a power saver. Made by a farmer for farmers
Lower memclock. Less power. More Hash

[reb0rn21]

Also sliding TDP to 60% and OC-ing you can get undervolt but if miner is low GPU usage it gona "boost" as insane so GPU will crash, I would like to see some new OC tool that can define static freq/voltage to all same GPU in rigs!

Not OC(overclocking). UC(Underclock) the memory of the gpu -500mhz(-1000mhz). Sp-mod #1 is a power saver. Made by a farmer for farmers

yeah but for same algo you need OC and less voltage... for instance for lbry ~1970mhz worked on 0.92v fine with memory at -500 stable, was a bit hard to get right values on all rigs, and locking freq/volt you can not save under one profile

[tbearhere]

In afterburner slide the  Power limit to the left

Thx just making sure how you go about it. 

ps I can only get a partial install on msvs 2015 on vista    You new miner crashes.

[sp_]

In afterburner slide the  Power limit to the left

Thx just making sure how you go about it. 

ps I can only get a partial install on msvs 2015 on vista    You new miner crashes.

Try to reboot