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drummers-lowrise
1) Message boards : General discussion : i9 9900k causes noises when running Primegrid (Message 130630)
Posted 1060 days ago by IncqptionProject donor
I still believe that there is nothing you should worry about. If all components are working correctly, it is probably coil whine and it could be coming from the CPU itself.

Happy crunching :D
2) Message boards : Sieving : MSR Sieving - P / watt for GPUs (Message 130599)
Posted 1061 days ago by IncqptionProject donor
My results:

Sapphire RX 550 (Lexa)

20 P/day at ~25 watts - 0.800 P/watt
3) Message boards : General discussion : i9 9900k causes noises when running Primegrid (Message 130585)
Posted 1061 days ago by IncqptionProject donor
My i9 9900k causes some high pitched noises when i run Primgrid on it.

It's probably not the CPU itself but the VRMs on the motherboard (or the PSU itself). If I understand correctly the noise you are referring to is coil whine.

Quoting another website:
That shrill sound is known as coil whine, which is a phenomenon that can occur in an array of PC components, but it typically occurs when you start up an especially taxing program. [...] Coil whine, also known as electromagnetically excited acoustic noise and vibration or audible magnetic noise, is one of the most frustrating phenomena in modern technology. As its name suggests, this high-pitched noise is caused by electromagnetic coils that act as inductors or transformers.

AFAIK coil whine is completely harmless and there is nothing you should really worry about.
4) Message boards : Storm message board (Message 130570)
Posted 1062 days ago by IncqptionProject donor
Hey, thank you everyone :D
5) Message boards : AP26 - AP27 Search : AP27 tasks being consistently invalid? (Message 130522)
Posted 1065 days ago by IncqptionProject donor
Problem is that older AMD drivers, for some reason, are made SPECIFICALLY for older Ubuntu versions and won't even run on older/newer ones and I'm not really willing to downgrade my entire system. :P

More dangerous things to try:

- Install older version of Mesa package (18.1.3 and below), if it's possible for your distro. Success will depend on are these relocations, which Mesa does not know how to handle, really required to run GPU program or not. If yes, GPU program may crash or hang.

- Uninstall Mesa if it's possible for your distro, install generic OpenCL ICD loader (Kronos on NVidia one). This may really break dependencies and desktop on your system, so it's for "really advanced" users only.

I actually have no idea how to do any of this but I am willing to try, if instructed :P. I am more experienced with Windows. I have just unselected the AP27 project from my properties.

What I initially thought about, and I don't know if it makes any sense, is that AP27 as well as all GFN tasks both run on OpenCL. If there was a problem with my OpenCL driver, wouldn't it make all GFN tasks fail aswell? (I have 0 history of failed GFN tasks before.) Could there be an issue with the AP27 program itself?

Even better is what I do with Genefer: if it detects an environmental error, and thus suspects that subsequent tasks will also immediately fail, it pauses for an hour, and then aborts. That way your computer isn't consuming electricity for no reason and won't run through a useless task every three seconds. Genefer will also periodically check during the hour to see if the problem has resolved itself and will continue the calculation if it can.

That's an elegant solution right there :P
6) Message boards : AP26 - AP27 Search : AP27 tasks being consistently invalid? (Message 130516)
Posted 1065 days ago by IncqptionProject donor
But it seems that Mesa starting from 18.1.4 (where this change was introduced first) and current AMD drivers are not compatible.

So should I just install an older driver?

The problem may or not may not appear depending on complexity and style of source code of GPU program.

That makes sense as all GFN tasks which are also OCL work perfectly fine..

Probably there is also a small bug in AP27 program which should check for successful run of the kernel and immediately exit on error, instead of running full time with invalid result. But I didn't looked at the source and may be wrong.

That is true. The AP27 tasks actually run for the whole 5-6 hours before exiting:P
7) Message boards : AP26 - AP27 Search : AP27 tasks being consistently invalid? (Message 130509)
Posted 1065 days ago by IncqptionProject donor
Running AP27 tasks on a Sapphire RX 550 (4GB) GPU. Nothing is overclocked, and 3/4 of my latest AP27 tasks have failed to validate. All other GPU tasks (GFN, Manual Sieving, etc.) are computing as normal. What is going on? :P

EDIT: forgot to mention: The host is running Ubuntu 18.04.2 LTS. It is equipped with the 19.20 AMD GPU driver.
8) Message boards : Seventeen or Bust : Considering starting SoB - clarifications needed! (Message 130484)
Posted 1067 days ago by IncqptionProject donor
I think running a unit on both cores you should see something like 4-5 days for one SoB task. This is a very rough estimation.

Actually, I'm getting 2.5 days, surprisingly! Around 1% per hour.
9) Message boards : Seventeen or Bust : Considering starting SoB - clarifications needed! (Message 130478)
Posted 1067 days ago by IncqptionProject donor
For Debian, Ubuntu... using deb, it is in
/var/lib/boinc-client/projects/www.primegrid.com


Hm, weird. I'm using Ubuntu 18.04.2 LTS and I found it in this directory. :P
10) Message boards : Seventeen or Bust : Considering starting SoB - clarifications needed! (Message 130459)
Posted 1068 days ago by IncqptionProject donor
Thanks for the quick reply! Any idea where the BOINC data directory on Linux is, though? The host I am going to be running SoB on is running Ubuntu, sooo :P

Edit: Nevermind, found it! For anyone wondering, its:

/var/lib/boinc/projects/www.primegrid.com/


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