CCminer(SP-MOD) Modded GPU kernels.

[chrysophylax]

ive changed the parameter to -x 5 and it seems to perform about the same ... so ill keep it at that ...
as for the x32 builds ... ill have to test that another day - as ill setup a x32 machine ( fedora 19 or 20 x32 ) and build it from a fully 32bit platform ...
what other commandline parameters do you think would benefit the hashrate / processing? ...
#crysx

Different intensity  parameters for different cards.

For the 750ti -x parameters should be a multiple of 5
for the 750, 960,980  -x paramameter should be a multiple of 8
and the 970 -x parameter should be a multiple of 13

tanx sp ... that is something that will be kept in the knowledgebase ...

i edited earlier - which i missed obviously - but the title of spreadminer is still at version 5 ...

thats not a big thing at all - but i thought you might want to know ...

...

#crysx

[sp_]

btw - just a small thing - but the title still says spreadminer 5

yeah, forgot to change it. The bottleneck in the spreadcoin hash is the cuda_sha256.cu function that iterates a 200000 element table.
I moved the table to a texture and got a small boost, but it broke the hash.
I will release a version 8 with higher speed soon.

[chrysophylax]

btw - just a small thing - but the title still says spreadminer 5

yeah, forgot to change it. The bottleneck in the spreadcoin hash is the cuda_sha256.cu function that iterates a 200000 element table.
I moved the table to a texture and got a small boost, but it broke the hash.
I will release a version 8 with higher speed soon.

sounds like a great deal of work ...

if version 8 can run faster - then wouldnt that be a 'leaner' miner? ...

would be nice to see if there was a leap in hashrate ...

#crysx

[sp_]

I have started on the cryptonight core now. But tsivs compiled version seems to crash on cuda 6.5 win8. Anyone have any tips ?
I tried different -l parameters but doesn't seem to work

[PVmining]

I have started on the cryptonight core now. But tsivs compiled version seems to crash on cuda 6.5 win8. Anyone have any tips ?
I tried different -l parameters but doesn't seem to work

never used it on win, on linux -l 8x60 was my always working launch config with a 750ti.

[sp_]

I have started on the cryptonight core now. But tsivs compiled version seems to crash on cuda 6.5 win8. Anyone have any tips ?
I tried different -l parameters but doesn't seem to work

never used it on win, on linux -l 8x60 was my always working launch config with a 750ti.

The hashrate is too high and the driver is crashing..

Seems to work now, I fixed a bug in benchmark mode

8x60 crashes

8x30 works.

[PVmining]

I have started on the cryptonight core now. But tsivs compiled version seems to crash on cuda 6.5 win8. Anyone have any tips ?
I tried different -l parameters but doesn't seem to work

never used it on win, on linux -l 8x60 was my always working launch config with a 750ti.

The hashrate is too high and the driver is crashing..

but it should work without launch config. the default tsiv used were quite conservative.

[myagui]

I believe you just need to disable the driver checking (or make the check interval larger):
https://msdn.microsoft.com/en-us/library/windows/hardware/ff569918%28v=vs.85%29.aspx

My working setup was to just set TdrLevel off (zero).
A more conservative launch value is 8x30 (though 8x60 does work best for me).

Cheers!

[antantti]

If I remember right there were some strange issues with windows 8 & 8.1 and tsiv's cryptonight miner. Had to use 8x30, higher values and it crashed. On windows 7 8x60 worked and was faster too.

[sp_]

I get 200-227H/s on a standard clocked 750ti with 8x30.  Latest version of the sourcecode

What hashrates did you get?

[sp_]

If I remember right there were some strange issues with windows 8 & 8.1 and tsiv's cryptonight miner. Had to use 8x30, higher values and it crashed. On windows 7 8x60 worked and was faster too.

Yes I am on windows 8.

[myagui]

I get 200-227H/s on a standard clocked 750ti with 8x30.  Latest version of the sourcecode

What hashrates did you get?

I have about 265~285 h/s with factory overclocked 750 TI and using 8x60.
Hashrate fluctuates quite a bit for me.

[antantti]

I get 200-227H/s on a standard clocked 750ti with 8x30.  Latest version of the sourcecode

What hashrates did you get?

I have about 265~285 h/s with factory overclocked 750 TI and using 8x60.
Hashrate fluctuates quite a bit for me.

240-245 overclocked cards. 8x30 and windows 8.1.

[sp_]

The crash is because windows tries to allocate a big chunk of memory. I am trying to build in x64 now to check if it works with -l 8x60

edit: Crashed with a bluescreen. -l 8x30 works and the speed is around 5h/s slower than the 32bit build

[myagui]

The crash is because windows tries to allocate a big chunk of memory. I am trying to build in x64 now to check if it works with -l 8x60

edit: Crashed with a bluescreen. -l 8x30 works and the speed is around 5h/s slower than the 32bit build

Increasing the delay on the driver check (or disabling it entirely) as I posted about above, allows for the memory allocation to succeed without crashing. I have best performance with the x86 build as well.

[sp_]

I managed to get 20KHASH pretty easy, and the hashrate is more stable.

Now the miner is running stable at 232.5-236 on standard clocks. up from 200-224 (8x30)

[sp_]

Cryptonight sp-mod version 1 exe file has been sendt to the donators. My first afternoon of work gave an increase of around 10% on the 750ti.
This will increase in the next releases.

If you want to join the train please donate 0.2 BTC and recieve both the optimized Spreadminer (with source) and the Cryptonight mod.

my BTC adress is in my signature.

[bathrobehero]

Cryptonight sp-mod version 1 exe file has been sendt to the donators. My first afternoon of work gave an increase of around 10% on the 750ti.
This will increase in the next releases.

If you want to join the train please donate 0.2 BTC and recieve both the optimized Spreadminer (with source) and the Cryptonight mod.

my BTC adress is in my signature.

Do you have an estimate on how much extra hash can you squeeze out of your cryptonight miner?

On a sidenote, your spreadminer v7 has the lowest fluctuation I've ever seen in any algo. It only fluctuates 1-3 kh/s.

[sp_]

Cryptonight sp-mod version 1 exe file has been sendt to the donators. My first afternoon of work gave an increase of around 10% on the 750ti.
This will increase in the next releases.
If you want to join the train please donate 0.2 BTC and recieve both the optimized Spreadminer (with source) and the Cryptonight mod.
my BTC adress is in my signature.

Do you have an estimate on how much extra hash can you squeeze out of your cryptonight miner?
On a sidenote, your spreadminer v7 has the lowest fluctuation I've ever seen in any algo. It only fluctuates 1-3 kh/s.

I think 30-100% faster is possible but it will take alot of work. I have started with the easy pickings.

[chrysophylax]

Cryptonight sp-mod version 1 exe file has been sendt to the donators. My first afternoon of work gave an increase of around 10% on the 750ti.
This will increase in the next releases.
If you want to join the train please donate 0.2 BTC and recieve both the optimized Spreadminer (with source) and the Cryptonight mod.
my BTC adress is in my signature.

Do you have an estimate on how much extra hash can you squeeze out of your cryptonight miner?
On a sidenote, your spreadminer v7 has the lowest fluctuation I've ever seen in any algo. It only fluctuates 1-3 kh/s.

I think 30-100% faster is possible but it will take alot of work. I have started with the easy pickings.

i have to agree ... the spreadminer is VERY stable and running like a charm at the moment ... would really like to see the optimizations in future ...

due to the windows cryptonight miner you distribute to the donors ( as you know i need linux source or app ) i decided to compile tsivs cryptonight miner sp ...

currently using 8x60 - it is running as below ...

#######

[2015-03-03 19:48:13] accepted: 9/9 (100.00%), 1208.91 H/s (yay!!!)
[2015-03-03 19:48:22] GPU #0: GeForce GTX 750 Ti, 230.20 H/s
[2015-03-03 19:48:23] accepted: 10/10 (100.00%), 1193.73 H/s (yay!!!)
[2015-03-03 19:48:31] Pool set diff to 100002
[2015-03-03 19:48:31] Stratum detected new block
[2015-03-03 19:48:31] GPU #2: GeForce GTX 750 Ti, 246.02 H/s
[2015-03-03 19:48:32] GPU #1: GeForce GTX 750 Ti, 243.84 H/s
[2015-03-03 19:48:32] GPU #0: GeForce GTX 750 Ti, 245.35 H/s
[2015-03-03 19:48:32] GPU #4: GeForce GTX 750 Ti, 248.23 H/s
[2015-03-03 19:48:33] GPU #3: GeForce GTX 750 Ti, 246.30 H/s

#######

which really isnt that bad ... i KNOW your miner will be more than that when you work on it further BUT i wont be able to use the windows one ...

compiled in fedora 19 x64 and running stable so far mining at pool.minexmr.com:7777 ...

what are your thoughts? ...

btw - as a side note - what are the best pools to mine that have cryptonight coins? ...

#crysx