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Forum: GpuOwl 2021-03-28, 18:58
Replies: 82
Views: 15,848
Posted By preda
The multiplication time was excessive before the...

The multiplication time was excessive before the restart. One possible cause would be the GPU RAM becoming over-allocated for some reason, which would slow everything down a lot.

If you catch it...
Forum: GpuOwl 2021-03-12, 08:56
Replies: 82
Views: 15,848
Posted By preda
I recently got a Radeon VII with Samsung memory...

I recently got a Radeon VII with Samsung memory (as as RMA replacement). Even without any RAM overclock, and without any undervolt, that memory consistently generates errors. This is in contrast with...
Forum: GpuOwl 2021-03-10, 19:43
Replies: 82
Views: 15,848
Posted By preda
As a practical approach, I would suggest reducing...

As a practical approach, I would suggest reducing the P1 bounds on the GPUs with these errors (e.g. at the wavefront, B1=2M and B2=40M). Would be interesting to know if these GPUs, booted under ROCm,...
Forum: GpuOwl 2021-03-10, 17:28
Replies: 82
Views: 15,848
Posted By preda
I don't know what is causing the GPU->Host read...

I don't know what is causing the GPU->Host read errors. What I'm most concerned with is whether GpuOwl is functioning correctly or not. I.e. whether you have some indication or suspicion that the...
Forum: GpuOwl 2020-09-10, 21:45
Replies: 82
Views: 15,848
Posted By preda
try -log <N> can be put in...

try

-log <N>

can be put in config.txt
Forum: GpuOwl 2020-09-10, 21:43
Replies: 82
Views: 15,848
Posted By preda
Still the core problem above is *why* did the...

Still the core problem above is *why* did the write of the residue fail (and produce a checksum mismatch), thus not allowing to use the power=8. The "fallback" of proof power, with its imperfections,...
Forum: GpuOwl 2020-09-10, 08:56
Replies: 82
Views: 15,848
Posted By preda
Sorry I'm a bit late to this discussion, but yes...

Sorry I'm a bit late to this discussion, but yes I confirm GpuOwl does not handle PRP-CF. It's a mishap that the assignment form for a PRP-CF is accepted instead of being clearly rejected outright,...
Forum: GpuOwl 2020-09-08, 00:04
Replies: 82
Views: 15,848
Posted By preda
Do you have the proof file? Would be in a folder...

Do you have the proof file? Would be in a folder named "uploaded", in pool/ if you use -pool or in the run directory of gpuowl otherwise, and is named something like 10496897-8.proof . If you have...
Forum: GpuOwl 2020-09-07, 11:28
Replies: 82
Views: 15,848
Posted By preda
Interesting. It looks as if that file was not...

Interesting. It looks as if that file was not written correctly, or corrupted on disk. When trying to use it for proof generation, the checksum mismatch was discovered. On restart, it tries first the...
Forum: GpuOwl 2020-09-01, 22:15
Replies: 82
Views: 15,848
Posted By preda
Quite annoying. I don't know what's causing the...

Quite annoying. I don't know what's causing the stall. I can think of such possibilities:

1. it's stuck on OpenCL queue->finish(). Yet strange that it reacts correctly to Ctrl-C.
2. it's stuck...
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