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Search: Posts Made By: M344587487
Forum: GpuOwl 2020-10-24, 08:07
Replies: 2,535
Views: 156,461
Posted By M344587487
intel's Xe iGPU in the 1165G7 would also be...

intel's Xe iGPU in the 1165G7 would also be interesting, it had a mediocre showing on launch but mere weeks later patches have come in for it to pull way ahead in some workloads:...
Forum: GpuOwl 2020-10-24, 00:03
Replies: 142
Views: 4,252
Posted By M344587487
C is trivial and OpenCL is quite different to...

C is trivial and OpenCL is quite different to normal programming but doable. The hard parts are the theory/algorithms, and translating an algorithm into efficient code is an art in itself. I mean no...
Forum: GpuOwl 2020-10-22, 22:36
Replies: 2,535
Views: 156,461
Posted By M344587487
There is potential, it's been discussed a little...

There is potential, it's been discussed a little on the forum but from the sounds of it it's not straightforward. There's no rush to buy or to experiment with an implementation, it's not like the R7...
Forum: GpuOwl 2020-10-21, 08:32
Replies: 9
Views: 984
Posted By M344587487
"git switch v6" to switch to the v6 branch, "git...

"git switch v6" to switch to the v6 branch, "git switch master" to go back to the currently v7 branch. Until the Makefile edit is in the repo you'll need to do "git checkout -f" to drop the manual...
Forum: Hardware 2020-10-20, 16:45
Replies: 9
Views: 391
Posted By M344587487
Thanks, 1:4 ratio it is. I'll revisit NVMe when...

Thanks, 1:4 ratio it is.
I'll revisit NVMe when Ubuntu 20.10 is out in a few days and try what you suggest. Trying to get the iGPU running nicely ATM which is trickier than it sounds.
It probably...
Forum: GpuOwl 2020-10-20, 07:03
Replies: 9
Views: 984
Posted By M344587487
The latest ROCm changed the OpenCL library path,...

The latest ROCm changed the OpenCL library path, until the gpuowl repo accounts for the change you'll need to edit the LIBPATH line in the Makefile to include -L/opt/rocm/opencl/lib
Forum: Hardware 2020-10-16, 13:02
Replies: 9
Views: 391
Posted By M344587487
Run from RAM, no NVMe present

Tried running an Ubuntu livecd from RAM (by adding toram as a boot parameter so the USB stick can be removed, entire OS resides in RAM), so that the NVMe could be removed entirely to see how much...
Forum: Hardware 2020-10-15, 20:28
Replies: 9
Views: 391
Posted By M344587487
Thanks I hadn't come across that one. It's C# so...

Thanks I hadn't come across that one. It's C# so I probably can't get it to run on Linux, always had trouble getting supposedly cross-platform .NET stuff running. Doesn't look like it matters either...
Forum: Hardware 2020-10-15, 16:26
Replies: 9
Views: 391
Posted By M344587487
Got FlopsCL working by lowering the...

Got FlopsCL working by lowering the THREADS_PER_BLOCK variable from the default of 1024 to 256. The average of some runs yields this:[float ]1410.088 GFlop/s
[float2 ]1416.99 GFlop/s
[float4...
Forum: Hardware 2020-10-15, 09:17
Replies: 9
Views: 391
Posted By M344587487
Power Saving Tools

Tried a few power saving tools. tlp on it's own gave some nice power saving, due to the way the CPU has been "underclocked" this translates into better iteration timings instead of lower power...
Forum: Hardware 2020-10-15, 00:02
Replies: 9
Views: 391
Posted By M344587487
Ryzen 4700u Benchmarks

The usual benchmarking has been done in the usual threads but it's been too long since I've properly fondled some hardware so I plan to bench this to hell and back. The hardware is an Asus PN50 SFF...
Forum: Hardware 2020-10-13, 19:44
Replies: 276
Views: 29,121
Posted By M344587487
Ryzen 4700u, 2x16GB 3200 CL22 DR

Mobile APU, 8C8T with 2x4MiB L3 cache and Vega iGPU with 7 cores at 1600MHz

8 core 1 worker CPU test, iGPU idle:
[Work thread Oct 13 18:48] Starting primality test of M332220523 using FMA3 FFT...
Forum: GpuOwl 2020-10-13, 14:04
Replies: 2,535
Views: 156,461
Posted By M344587487
Here's the Vega iGPU from a 4700u (7nm, 7 GPU...

Here's the Vega iGPU from a 4700u (7nm, 7 GPU cores, supposedly 1600MHz):

pn50@pn50:~/Documents/git/gpuowlv6$ ./gpuowl -prp 77936867 -maxAlloc 4000
2020-10-13 13:28:29 gpuowl...
Forum: Hardware 2020-10-13, 11:04
Replies: 822
Views: 122,828
Posted By M344587487
AMD Ryzen 4700u (8C8T Zen 2 mobile), 2x16GB 3200 DDR4 SO-DIMM CL22

Compare your results to other computers at http://www.mersenne.org/report_benchmarks
AMD Ryzen 7 4700U with Radeon Graphics
CPU speed: 4192.05 MHz, 8 cores
CPU features: 3DNow! Prefetch,...
Forum: Hardware 2020-10-08, 17:07
Replies: 18
Views: 2,475
Posted By M344587487
Zen 3 AMD presentation

https://www.youtube.com/watch?v=iuiO6rqYV4o


https://www.youtube.com/watch?v=n-AanO3Axzk



tl;dr from the AMD presentation:
Forum: GpuOwl 2020-10-08, 10:48
Replies: 142
Views: 4,252
Posted By M344587487
You really need to tag MS API links as NSFW, I...

You really need to tag MS API links as NSFW, I gagged ;)


You're right, it looks like it's trivial to have completely separate (as in no child/fork) processes share a posix named semaphore so...
Forum: GpuOwl 2020-10-07, 15:55
Replies: 142
Views: 4,252
Posted By M344587487
Creating a file lock is implementing a mutex at...

Creating a file lock is implementing a mutex at the process level, to run two gpuowl workers you run two instances of the program so there are two processes. A normal mutex that you'd use to...
Forum: GpuOwl 2020-10-07, 13:46
Replies: 142
Views: 4,252
Posted By M344587487
I was responding to the description of memlock...

I was responding to the description of memlock and theorising how to minimise the number of stalls for the typical use case, which at best is a micro-optimisation as the stalls might be numerous in...
Forum: GpuOwl 2020-10-07, 10:35
Replies: 142
Views: 4,252
Posted By M344587487
Assuming the large memory requirement is within a...

Assuming the large memory requirement is within a single time interval memlock is a simple way to get the processes out of phase and should do the job fine. Assuming the normal case of the queued...
Forum: Hardware 2020-10-06, 19:30
Replies: 171
Views: 10,077
Posted By M344587487
Phoronix compute benchmarks:...

Phoronix compute benchmarks: https://www.phoronix.com/scan.php?page=article&item=nvidia-rtx3080-compute&num=1
Forum: Hardware 2020-10-01, 20:26
Replies: 171
Views: 10,077
Posted By M344587487
Probably not, but a big factor is that I have...

Probably not, but a big factor is that I have frozen peas and they're probably a better substitute than the 20 year old lentils at the back of the cupboard.

Until there's a single relevant...
Forum: GpuOwl 2020-10-01, 09:42
Replies: 142
Views: 4,252
Posted By M344587487
If a feature is removed you're not beholden to...

If a feature is removed you're not beholden to fix it when you make a breaking change, it gives you the freedom to make changes to the codebase without having to consider what that change does to the...
Forum: Hardware 2020-10-01, 09:33
Replies: 171
Views: 10,077
Posted By M344587487
Thanks for the tip. I'm tempted to try it with...

Thanks for the tip. I'm tempted to try it with ground frozen peas and less added water, odds are not great that that would work well but it's worth a shot.
Forum: GpuOwl 2020-10-01, 08:23
Replies: 142
Views: 4,252
Posted By M344587487
Then freely choose to run an older version of...

Then freely choose to run an older version of gpuowl. Am I missing something?
Forum: GpuOwl 2020-09-28, 09:36
Replies: 2,535
Views: 156,461
Posted By M344587487
What's the power draw of the W5500 and how does a...

What's the power draw of the W5500 and how does a Radeon VII compare throughput-wise with the same exponent? If the RTX 5500 has similar numbers which it should (DP ratio looks the same), if the 4GB...
Showing results 1 to 25 of 655

 
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