[Bug 72785] bfgminer --scrypt on 7xxx+

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=72785

--- Comment #32 from Christoph Haag <haagch@frickel.club> ---
Doesn't work for me either with llvm 216281 and mesa git

Oh and maybe it's not known, at least it wasn't so clear to me: I earlier wrote
how my GPU wouldn't get as warm as I expected nor did it display the expected
hashrate. This seems to be entirely controlled by the --intensity parameter. An
intensity of 10 or 11 seems to work okay to not get too many H/W errors and
higher results.

But I let it run for about an hour and bfgminer didn't seem to create a single
usable result again.
Runtime: 0 hrs : 52 mins : 51 secs
Average hashrate: 0.1 Megahash/s
Solved blocks: 0
Best share difficulty: 0
Share submissions: 0
Accepted shares: 0
Rejected shares: 0 + 0 stale (-nan%)
Accepted difficulty shares: 0
Rejected difficulty shares: 0
Hardware errors: 77

(The problem is pretty surely not bfgminer. I replaced CL_DEVICE_TYPE_GPU with
CL_DEVICE_TYPE_CPU and ran it via the intel opencl runtime on my CPU and there
I get accepted shares after very few minutes)

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