Posts by Fardringle

1) Message boards : Number Crunching : All errors on Linux Box !!! (Message 191)
Posted 28 Jan 2021 by Fardringle
Post:
Try limiting that computer to run fewer tasks than the total number of CPU cores/threads. Try it with 5 or 6 simultaneous tasks instead of 8 to see what happens. Or even drop it down to 4 if you are also running a GPU project on the Quadro K5000 in that computer.

On my Xeon E-2267 (6 core/12 thread), if I set it to run more than 8 Kryptos tasks at a time they error out. But if I keep it at 8 or less (or 7 or less when using the GPU) they almost all complete successfully. I think it's because the Kryptos tasks actually want 1.3-1.4 CPU threads each on the Xeon. No idea why it's doing that since it only uses one thread per tasks on my other computers, but I can verify that they actually do use 1.3-1.4 threads each on the Xeon if I limit the number of threads that are running so that they can each have that much. And because they want that much CPU time, if BOINC is allowed to run more tasks the individual tasks don't get as much CPU time as they want, and then the Kryptos tasks fail because they keep fighting with each other and get interrupted. I'm not certain that's the cause of the errors, but it does seem to be the case. And it's already been posted that the Kryptos tasks will fail if they are interrupted or paused at all...
2) Message boards : Number Crunching : Not getting work on Ryzen 9 3900X (Message 153)
Posted 20 Jan 2021 by Fardringle
Post:
As an update to my original post, I went ahead and removed VirtualBox 6.1.16 that was installed with BOINC and installed version 5.2.44 and now this project does say that the Ryzen 9 3900X CPU supports virtualization. So it looks like just another facet of the project not fully supporting the newer version of VirtualBox...
3) Message boards : Number Crunching : Not getting work on Ryzen 9 3900X (Message 51)
Posted 15 Jan 2021 by Fardringle
Post:
SVM is enabled in the BIOS.

From some posts I've found on other project message boards, it appears that some BOINC projects report that "CPU does not have hardware virtualization support" message if there is any other virtualization software installed on the computer. I use Windows Hyper-V for work related virtual machines, so that is probably why Kryptos is saying that I don't have virtualization support available even though it is active, available, and working properly.

Unfortunately, I need my Hyper-V VMs so I'll just have to let Kryptos run on my old/small i7-4790 and not on the Ryzen 9 3900X until the native applications are available.
4) Message boards : Number Crunching : Not getting work on Ryzen 9 3900X (Message 21)
Posted 12 Jan 2021 by Fardringle
Post:
It is not disabled. I checked to be sure.

And Hyper-V and VirtualBox themselves both say that it is enabled. I have no problem running actual virtual machines in either one of them, and other BOINC projects that use VirtualBox also work just fine on this computer in Windows.
5) Message boards : Number Crunching : Not getting work on Ryzen 9 3900X (Message 16)
Posted 12 Jan 2021 by Fardringle
Post:
I cannot get any work to download on my Ryzen 9 3900X computer. I've tried on both Windows 10 and Linux Mint (Ubuntu) 20 with the same results. Both have VirtualBox installed. When attempting to get tasks, I just get "Scheduler request completed: got 0 new tasks".

I can see that there is plenty of work available on the server, and I just attached my much slower secondary computer with an i7-4790 running Windows 10 and it immediately got work. Any ideas why my Ryzen won't get anything?

I'm wondering if it's because the computer details under my account say "CPU does not have hardware virtualization support" for some reason. That's definitely not true so I don't know why BOINC (or this project) is listing the computer that way...




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