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Forum: GpuOwl 2020-09-18, 21:51
Replies: 59
Views: 9,037
Posted By preda
maxAlloc is in Megabytes, so 100'000 indicates...

maxAlloc is in Megabytes, so 100'000 indicates 100GB.

Maybe you should start with a conservativelly small value, such as 3000 or 7000, if you expect GPUs with at least 4GB or at least 8GB of RAM....
Forum: GpuOwl 2020-09-07, 06:34
Replies: 59
Views: 9,037
Posted By preda
Moebious' post #37...

Moebious' post #37 https://mersenneforum.org/showpost.php?p=555557&postcount=37 indicates that he got it to work, yes. The problem likely was something to do with the generated files...
Forum: GpuOwl 2020-08-31, 12:13
Replies: 59
Views: 9,037
Posted By preda
Sorry I don't really know how to help there. The...

Sorry I don't really know how to help there. The time of the OpenCL compilation (0.00s) is suspiciously fast. Maybe something didn't go well with the OpenCL compilation, but there is no error...
Forum: GpuOwl 2018-09-22, 10:18
Replies: 59
Views: 9,037
Posted By preda
You may want to report these, if they only happen...

You may want to report these, if they only happen with ROCm but not with amdgpu-pro -- then maybe report to "rocm issues" on github, so that they know about it.
Forum: GpuOwl 2018-03-12, 00:03
Replies: 59
Views: 9,037
Posted By preda
Did you consider trying ROCm? ...

Did you consider trying ROCm?
https://github.com/RadeonOpenCompute/ROCm

(in my oppinion it's at least on par with amdgpu-pro performance-wise)

It may be interesting to see if it encounters the...
Forum: GpuOwl 2018-03-11, 11:09
Replies: 59
Views: 9,037
Posted By preda
Yes it looks fine. And you don't get anything new...

Yes it looks fine. And you don't get anything new in dmesg when the lock happens..? interesting. I still can't really imagine how the OpenCL app can lock the process much less the whose OS unless...
Forum: GpuOwl 2018-03-11, 02:17
Replies: 59
Views: 9,037
Posted By preda
No I haven't looked into this yet, sorry. It...

No I haven't looked into this yet, sorry. It seems to be a driver problem. When this happens, if you're on linux, could you look at the system error log with:
"dmesg", eventually filtering like:...
Forum: GpuOwl 2018-03-02, 08:32
Replies: 59
Views: 9,037
Posted By preda
There's no easy way (to use workgroup 256 in this...

There's no easy way (to use workgroup 256 in this situation) I can think of.

If you install amdgpu-pro or ROCm, you should be able to use WG up to 1024.

In the next update I'll try to move back...
Forum: GpuOwl 2018-03-01, 20:17
Replies: 59
Views: 9,037
Posted By preda
-55 is "invalid work item size". Apparently the...

-55 is "invalid work item size". Apparently the OpenCL system you're using does not support a 512 workgroup size.
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