Posts by cov_route

1) Message boards : Number crunching : BoincStats World Position for RAC? (Message 1826324)
Posted 23 Oct 2016 by Profile cov_route
Post:
I went away for a few months, now I'm back crunching with essentially the same machine.

Before when I ran flat out I got to world position for RAC around 15,000. Now with the same machine and similar RAC (8-10k) I'm at a world position close to 4,500 in SETI.

http://boincstats.com/en/stats/0/user/detail/9777858/charts

Interesting. What happened while I was away? It's like massive numbers of people left the project or something. Is BoincStats not working right?
2) Message boards : Number crunching : Many AP Inconclusive/Invalids (Message 1779512)
Posted 16 Apr 2016 by Profile cov_route
Post:
Reverted to 15.12. I forgot to recompile the kernels oops.

Is there a way to separately install the ocl driver?
3) Message boards : Number crunching : Many AP Inconclusive/Invalids (Message 1779181)
Posted 14 Apr 2016 by Profile cov_route
Post:
Examples (my machine is 6772593)

http://setiathome.berkeley.edu/workunit.php?wuid=2119175732
http://setiathome.berkeley.edu/workunit.php?wuid=2124161843
http://setiathome.berkeley.edu/workunit.php?wuid=2123832763

It's an R7 260X with Crimson 16.3.2. The app is AP7_win_x86_SSE2_OpenCL_ATI_r2742.exe running 1-up. Temps are good (58C). Mb runs ok, no invalids there to speak of. Default parameters.

Anyone seen this? Driver?
4) Message boards : Number crunching : OpenCL vs. CUDA, histoical and current situation? (Message 1776999)
Posted 8 Apr 2016 by Profile cov_route
Post:
1.Ñ… is where CUDA23/cuFFT outperforms OpenCL/oclFFT with good margin...

And I'm very doubt that any hardware was donated by AMD or NV.

Do you mean OCL 1.x?
5) Message boards : Number crunching : Invalid results? (Message 1713211)
Posted 15 Aug 2015 by Profile cov_route
Post:
what would be a good driver to try

Omega (14.12) worked well for me.
6) Message boards : Number crunching : Invalid results? (Message 1713139)
Posted 14 Aug 2015 by Profile cov_route
Post:
I don't think it's architecture my Bonaire shows more errors too. I think it's the new drivers.

I think the non-HD5 version works better with the new drivers based on a small number of tests.
7) Message boards : Science (non-SETI) : Exaflop Supercomputer (Message 1707952)
Posted 3 Aug 2015 by Profile cov_route
Post:
What you need is cooling system for thousands of CPU and GPU. Of course nVidia will provide the GPUs and Intel the CPUs.
Tullio

Actually an APU with integrated CPU/GPU cores makes a lot of sense for a machine this big. The HSA unified address space also makes a lot of sense, an AMD technology. And AMD are already using HBM. AMD's position wrt exascale is interesting.

http://www.hpcwire.com/2015/07/29/amds-exascale-strategy-hinges-on-heterogeneity/
http://wccftech.com/amd-exascale-heterogeneous-processor-ehp-apu-32-zen-cores-hbm2/
8) Message boards : Number crunching : Anything relating to AstroPulse tasks (Message 1705961)
Posted 28 Jul 2015 by Profile cov_route
Post:
Let me check again... Yes yes here we g... No. Never mind. Still none.

Bad luck, I suppose. The luck of the draw doesn't appear to favor you. I've gathered 80 thus far (though a few have been 100% blanked B3_P1's, so I turn those around to get them out of the way), and still have more room in the cache before hitting the hard limit of 100.

A good chunk of the work I've gotten so far has been rather heavily blanked, as well, so instead of ~10 hours for each task, they're ranging from 1.5-5 hours instead.

Not luck. I get one or two a month and have since last fall. I don't know what it is but it's not random.

It's why I shifted focus to other projects and lost a lot of interest in BOINC in general.
9) Message boards : Number crunching : Anything relating to AstroPulse tasks (Message 1705865)
Posted 28 Jul 2015 by Profile cov_route
Post:
Let me check again... Yes yes here we g... No. Never mind. Still none.
10) Message boards : Number crunching : Anything relating to AstroPulse tasks (Message 1705787)
Posted 27 Jul 2015 by Profile cov_route
Post:
I still got 0. Lol.
11) Message boards : Number crunching : Anything relating to AstroPulse tasks (Message 1705733)
Posted 27 Jul 2015 by Profile cov_route
Post:
I got 0
12) Message boards : Number crunching : Panic Mode On (99) Server Problems? (Message 1705676)
Posted 27 Jul 2015 by Profile cov_route
Post:
I got 0.
13) Message boards : Number crunching : AMD CPU tips (Message 1705012)
Posted 25 Jul 2015 by Profile cov_route
Post:
I was just happy to see my new fx with the new driver can feed the gpu jobs with the CPU power saving features on (down clocking, core parking). The point of gpu-only is to save power.


I'm sorta laughing at this ..... my GPUs consume twice as much power as my CPU. If I wanted to save power, I wouldn't run ANY GPUs. I mainly save power [i.e.-money] by running the systems off my free solar power.

In terms of rac/Watt flops/Watt the gpu is much better so my personal decision is to stop CPU processing. That only makes sense if the CPU can use its power saving features.
14) Message boards : Number crunching : AMD CPU tips (Message 1705009)
Posted 25 Jul 2015 by Profile cov_route
Post:
I was just happy to see my new fx with the new driver can feed the gpu jobs with the CPU power saving features on (down clocking, core parking). The point of gpu-only is to save power.

That said the two hot fixes seem to kill core parking. Still deciding if I'll keep them.


"Important; If you apply this update, you cannot revert the settings by uninstalling this update. This update should only be installed on computers that have KB2645594 installed."

I haven't any problems after applying the Hot Fixes. I do believe they are permanent though.

If you look in system restore you will see the installer created a restore point before installing the hot fixes. You can roll back. Also the Kb entries recommended creating a manual restore point.
15) Message boards : Number crunching : AMD CPU tips (Message 1704697)
Posted 24 Jul 2015 by Profile cov_route
Post:
I was just happy to see my new fx with the new driver can feed the gpu jobs with the CPU power saving features on (down clocking, core parking). The point of gpu-only is to save power.

That said the two hot fixes seem to kill core parking. Still deciding if I'll keep them.
16) Message boards : Number crunching : AMD CPU tips (Message 1704166)
Posted 23 Jul 2015 by Profile cov_route
Post:
Users with high end GPU`s from AMD using 15.x beta drivers should update to Cat 15.7 ASAP.
Its faster with less CPU usage.

APP runtime version 1800.5.

I'm on 15.7 and I find the HD5 apps are throwing errors. r2889 for sure and r2489 maybe. Apart from that it's working well.

No CPU apps and Cool n Quiet + the other energy saving things enabled. The GPU utilization is pinned at 100% running 2-up. That's great.

I removed omega, ran DDU before the install.
17) Message boards : Science (non-SETI) : Speeding up space travel - EM Drive (Message 1678737)
Posted 12 May 2015 by Profile cov_route
Post:
Sure you have...just give me few blonds or brunetes & I populate the planet before we get there... :D

Love triangles between people stuck in a spaceship the size of a kitchen for weeks and months? What could possibly go wrong?
18) Message boards : Science (non-SETI) : Speeding up space travel - EM Drive (Message 1676604)
Posted 9 May 2015 by Profile cov_route
Post:
Further to my last wetblanketry, I did some calcs...

With the engines they claim to have already built that generate 0.75N force with 1200 W input power, a 4 meter diameter rotor with two of the engines mounted on the periphery rotating at 57,000 rpm (ok thats fast) would be a perpetual motion machine. Spin it faster and you get free electricity.

Engineering-wise that would be a challenge but not completely out of the question. And we are talking about prototypes. They seem to believe they can improve them so it would be even more feasible.

If these things are real then we will have free electricity in unlimited quantities. No more green house gasses, gigantic desalination plants in California (and any desert you care to mention), total recycling because energy is not an issue. And on and on, use your imagination.

Why power your spaceships with nuclear reactors? Just use EM drives to generate the power and the thrust out of the void.

It all seems like a bit much.
19) Message boards : Science (non-SETI) : Speeding up space travel - EM Drive (Message 1676300)
Posted 9 May 2015 by Profile cov_route
Post:
They report this thing converts electrical power into a force. Not energy to energy or power to power or force to force. Power to force. That's a remarkable claim.

We could put the engine on a wheel and make it drive the wheel round and round.

Hook the wheel up to a generator and you can generate electricity. The faster it turns the more power it generates because the force is constant (or so it seems).

You could generate arbitrary amounts of power depending how fast it can spin without flying apart. No reason you couldn't generate more power than you are using to run the engine itself.

You are talking about extracting energy out of nothingness.

So not only does it appear to violate conservation of momentum, but conservation of energy too.

I dunno...
20) Message boards : Science (non-SETI) : Shapes on Mars (Message 1674259)
Posted 6 May 2015 by Profile cov_route
Post:
The one that interested me the most is the one that looks like the foundation of a large rectangular building with three sides still in place.

If I recall the rectangle was 3-4 km on a side. Bit big for a building. Of course...alien. Could have been the hangar for their intergalactic dirigible.


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