ocminer Help opid-9895a964-4d11-4c33-98f7-9f1413781e94
Same problem here. Also my GPU is getting warm, but nothing shows up in the pool.
Looks like you are missing OpenCL. What graphics card drivers are you using?
Getting the same when I am running: ./src/zcash-miner -G
Running the test miner
[OPENCL]:Found suitable OpenCL device [Tahiti] with 2940207104 bytes of GPU memory
[OPENCL]:Using platform: AMD Accelerated Parallel Processing
[OPENCL]:Using device: Tahiti(OpenCL 1.2 AMD-APP (1729.3))
[OPENCL]:Printing program log
[OPENCL]:â/tmp/OCL16092T11.clâ, line 287: warning: integer conversion resulted in a
change of sign
v[14] ^= -1;
^
Kernel run took 84 ms. (0 H/s)
maybe you forgot:
export GPU_MAX_ALLOC_PERCENT=100
export GPU_SINGLE_ALLOC_PERCENT=100
I have some issues. maybe bug.
Would this work as well ??
export GPU_MAX_ALLOC_PERCENT=100
export GPU_USE_SYNC_OBJECTS=1
Edit: Your and my âexport codeâ doesnât change anything.
How many GPUs are currently supported by zogminer?
Age Manning completed the multi-gpu code while I was sleeping. Iâm reviewing now and will merge in a few! We should be getting close to stable. Maybe just a few more days tops.
Cheers
1 Like
Zogminer works fine, but there is a CRITICAL BUG that generates invalid shares: âAfter stratum restart zogminer kinda ignores new nonce and hashing with old so all shares are invalid on pool side.â Then it mines, but ALL FOLLOWING shares are invalid. You have to restart the process.
It cant bee seen from the console output if you wont turn the Stratum debug mode on.
See: Invalid shares ¡ Issue #44 ¡ nginnever/zogminer ¡ GitHub
Thanks for the report tillda, we have been struggling with the nonce format with silentarmy as Omar mentions above. Wish us luck getting it right. Omar has to do other work for a bit but we will put our heads together and figure out the nonces soon
nvidia 361.42 that should have OpenCLâŚ
I have also installed CURA
The same thing as mentioned above on amdgrpu-pro driver:
when I run ./zcutil/build.sh -j$(nproc)
it gives me error:
/usr/bin/ld: cannot find -lOpenCL
collect2: error: ld returned 1 exit status
Any hotfix?
Just got 2 threads running on one card. ~15H/s from each thread so that brings the average up to 30H/s in zcash per card. Some more tweaking could get that higher.
Now to open up multiple cards 
3 Likes
Itâs interesting how this simply doubles the solrate on Linux. With Trompâs kernels on Windows, it only got me an extra 10-20%, with SA kernels nothing. Or Iâm doing something terribly wrong here 
1 Like
Because for mining, Linux rocks. Now, can you kindly bless us with a Linux binary of your miner?
Iâve tried this âmultithreadingâ with my RX 480s. Running one thread gives me 26Sol/s, two: 2x22 Sol/s, three: 3x15 Sol/s. The only weird thing is that on the gpu #0 (towhich the display is connected to, maybe this matters) the 2nd and the 3rd thread dies after a few minutes (it says: âsegmentation fault (core dumped)â). Meanwhile on the other one, I have no problems at all.
Did you actually mulithread it or did you run two program instances side by side?
I ran it from a terminal with a four row long command each row for one âthreadâ, but basically thatâs just running your miner 4 times paralelly, isnât it? Well thatâs why I put it between the quotation marks.
Yup exactly which is great to hear that it runs well that way! thanks for testing that. I have been working on creating cpu threads with zcash/bitcoin boost lib in main repo. Does not seem to perform as well. 2 threads = 32H/s
