Nvidia Tesla P100 and V100 not working

[AugustJMote]

I compiled ccminer with CUDA 9.1 and gcc 5.4.

It generates a simple "Out of memory error" and closes.
On the Tpuvrot version they both attempt to mine, but generate constant "nonce does not validate" errors.

I tried editing the make file, but I might not have done so correctly.

Any guidance would be appreciated, thank you

[KlausT]

The default intensity is probably too high. Try setting it manually.
What algo are you trying to mine?

[AugustJMote]

Neoscrypt
I've tried intensities between 15 and 28, but I can try more shortly.

[KlausT]

Did it say something about cuda_neoscrypt.cu ?
Maybe it's not your cards but your system that's out of memory.
In this case changing the intensity wouldn't help.

[AugustJMote]

It seems it was an issue with intensity after all. It seems odd considering how high the Tesla k80 liked intensity. After adjusting the intensity, the p100 could do 1.4 MH/s and the v100 could only seem to do 0.6 MH/s, which seems odd considering the Titan V can do 2.6, but it might be user error again. Thank you for your help.

[KlausT]

If those cards have the same high memory latency than the 1080Ti, they might be faster when we make a little code change.
After this line:

ccminer/neoscrypt/neoscrypt.cu

Line 45 in 5a4b96b

unsigned int cc = props.major * 10 + props.minor;

I could add this line:
if(cc==70 || cc==60) use_tpruvot=true;

After this change the intensity wouuld have to be adjusted again, probably.

[TheRealMrQ]

Will the equihash algo be affected in the same way, as to make a similar code change, for 1080ti/v/p100 cards?

[AugustJMote]

Unless I misunderstand, the code change appears to just use tpuvrot's implementation of the neoscrypt miner. It wouldn't affect any other algo. The code didn't change much for the p100, but boosted the v100 to Titan V levels. If anyone has access to either of these devices, I'd probably recommend Ethereum mining since their HBM2 seems to benefit Eth massively while their low core clocks hurt everything else.