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Forum: Hardware 2020-10-30, 14:22
Replies: 3
Views: 128
Posted By M344587487
It's a good step, but RISC-V is still many years...

It's a good step, but RISC-V is still many years from being viable in a consumer chip. That board is for evaluation and jumpstarting dev efforts and is still a few orders of magnitude off price-wise....
Forum: Lounge 2020-10-29, 11:43
Replies: 8
Views: 176
Posted By M344587487
Lectures can be done online no problem. Seminars...

Lectures can be done online no problem. Seminars are better in person but depending on content online could be manageable. Labs would be very hard to translate into online form unless it's a pure...
Forum: Hardware 2020-10-29, 00:37
Replies: 8
Views: 292
Posted By M344587487
Unfortunately that was never on the cards, Navi...

Unfortunately that was never on the cards, Navi has always been about optimising for graphics performance over all else. Good DP is now the realm of CDNA2 and there's a 99% chance that CDNA2 is not...
Forum: Hardware 2020-10-28, 16:59
Replies: 8
Views: 292
Posted By M344587487
RDNA2 / Big Navi

AMD announcement: https://www.youtube.com/watch?v=oHpgu-cTjyM


https://www.youtube.com/watch?v=haAPtu06eYI



tl;dr:
Forum: Hardware 2020-10-28, 10:44
Replies: 34
Views: 2,943
Posted By M344587487
The standard 2nd hand server market has a lot of...

The standard 2nd hand server market has a lot of CPUs because companies often start with a low end configuration for a socket and upgrade to a high end configuration down the line as a cheap upgrade...
Forum: Hardware 2020-10-28, 10:35
Replies: 19
Views: 2,601
Posted By M344587487
It's always best to err on the side of pessimism,...

It's always best to err on the side of pessimism, you're probably right that they mean the existing units are more easily utilised instead of bigger. I'm also not getting the first wave of Zen 3...
Forum: Hardware 2020-10-25, 19:38
Replies: 45
Views: 5,169
Posted By M344587487
It's an Asus PN50, an SFF PC using laptop...

It's an Asus PN50, an SFF PC using laptop components, no battery or screen, with an external power brick like a laptop. By default the chip's configured to use 25W in it's boost state for a few...
Forum: News 2020-10-25, 12:20
Replies: 571
Views: 58,617
Posted By M344587487
Staring at tea leaves is fun depending on the tea...

Staring at tea leaves is fun depending on the tea but compute power is the main indicator for success.
Forum: Hardware 2020-10-25, 11:48
Replies: 45
Views: 5,169
Posted By M344587487
Here's my 4700u results tuned for efficiency: 8...

Here's my 4700u results tuned for efficiency:
8 cores 1 worker
PRP exponent 86846297, FFT=4608K
ms/iter: 8.1
AC power: 20.5W
it/j: 6.02

The small cache hurts throughput but the efficiency is...
Forum: GpuOwl 2020-10-24, 08:07
Replies: 2,556
Views: 159,431
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: 152
Views: 4,904
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: 2,556
Views: 159,431
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: 1,052
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: 421
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: 1,052
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: 421
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: 421
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: 421
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: 421
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: 421
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: 29,377
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: 2,556
Views: 159,431
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: 123,852
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: 19
Views: 2,601
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: 152
Views: 4,904
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...
Showing results 1 to 25 of 664

 
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