bitcoin-opencl fails self test on Arc B60
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bug
- Dominant language
- C
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- 13.6k
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Description
I am not convinced this is caused by JtR alone, so this bug is just a heads up.
Bitcoin opencl format is failing self test on Intel GPUs, unless we limit LWS to 14 or smaller.
Here is an example on Arc B60:
$ ./john -test -format=bitcoin-opencl
Bitcoin-opencl
Device 1: Intel(R) Arc(TM) Pro B60 Graphics
Benchmarking: Bitcoin-opencl, Bitcoin Core [SHA512 AES OpenCL]... FAILED (cmp_all(1))
$ LWS=14 ./john -test -format=bitcoin-opencl
Device 1: Intel(R) Arc(TM) Pro B60 Graphics
Benchmarking: Bitcoin-opencl, Bitcoin Core [SHA512 AES OpenCL]...(1280 blocks)
DONE
Speed for cost 1 (iteration count) of 200460
Raw: 2333 c/s real, 2327 c/s virtual
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the failure with ./john -test -format=bitcoin-opencl on an Intel Arc B60, then repeat with LWS=14 as shown in the issue. Investigate the bitcoin-opencl self-test path and OpenCL behavior; done means determining why larger LWS values fail and whether the self test passes without the workaround.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- performance, testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 42/100