Posts by Ron Kosinski

1) Message boards : Questions and problems : BOINC "High Priority" mode issues! (Message 110698)
Posted 11 Dec 2022 by Profile Ron Kosinski
Post:
Well, I guess I will keep plugging along and tweak my cache size if I still have issues with this.
I want to thank everyone for their help in this!
2) Message boards : Questions and problems : BOINC "High Priority" mode issues! (Message 110696)
Posted 11 Dec 2022 by Profile Ron Kosinski
Post:
Reduce both settings even further, to say 0.5 and 0.1 days. As you've found that reducing these has improved the situation somewhat this will probably improve it further. Also, if these computers are being used for other work then consider reduce the "use at most x% of the CPUs to leave a core for other duties - in the case of your 4-core systems this would be 75%.

I changed the settings to 0.5 and 0.2 days. Lets see how that works out. I've been doing this for a while now, 22 years! I remember the early days @ SETI when the system up time wasn't as reliable as it is now, so you needed a larger cache size to get you past the down times. :-)

The computes are used mostly for BOINC crunching. On the occasion I do other heavy work, I have the configuration file set to pause BOINC if the CPU load for non BOINC usage exceeds 40%

Does anyone happen to know if there is a way to pause just 1 CPU core if the non BOINC load exceeds a certain percentage?
3) Message boards : Questions and problems : BOINC "High Priority" mode issues! (Message 110694)
Posted 11 Dec 2022 by Profile Ron Kosinski
Post:
Set a shorter cache size.

I don't know how much lower I should go. Both projects are set to store 0.7 days with an additional 0.3 days for a total of 1 day of work for each of the two projects. What cache size do you recommend? I did have it set higher, but I lowered it to the current settings about a month ago just for this reason. It did get better with the new smaller cache size. Is there any way of getting the High Priority mode to work better in the program?
4) Message boards : Questions and problems : BOINC "High Priority" mode issues! (Message 110689)
Posted 10 Dec 2022 by Profile Ron Kosinski
Post:
I'm running W10 x64 computers (4 core CPU's, no hyperthreading) with BOINC V7.20.2 with Einstein and Milkyway projects with both CPU & GPU w/u's. With varying frequency Einstein throws some w/u's at me with short deadlines, causing BOINC to go into High Priority mode. They are usually CPU w/u's. When this happens, BOINC does not stop other CPU w/u's, it just starts the high priority ones on top of the other w/u's. For example, I had 2 Milkyway GPU w/u's running @ 0.5C CPU per w/u and 1 Milkyway CPU N Body 4 core w/u running at the same time. This was ok, but then BOINC also started running 2 "High Priority" Einstein CPU w/u's which causes everything to slow down.
Any ideas on what I can do to stop this?
5) Message boards : Questions and problems : How would "Resource Share" number work in this case? (Message 96772)
Posted 15 Mar 2020 by Profile Ron Kosinski
Post:
I've been a long time SETI and Einstein cruncher. With SETI going into hibernation, i am looking to add another project. i am looking to add MilkyWay to the mix. I have heard MilkyWay work units are not efficient running on Nvidia GPU cards so my plan was to limit Einstein to GPU work units, and Milky way to CPU work units. In this case, would it matter what "resource share" number I set for each project?
6) Message boards : GPUs : Questions about iGPU and GPU card use (Message 53447)
Posted 31 Mar 2014 by Profile Ron Kosinski
Post:
Poke! Anybody?

Can anyone suggest a better location to post this question?

Thanks, Ron
7) Message boards : GPUs : Questions about iGPU and GPU card use (Message 53306)
Posted 25 Mar 2014 by Profile Ron Kosinski
Post:
I have some questions on 2 of my BOINC rigs.


I built this rig about a year ago:

Asus Z87 A motherboard
Intel i5-4670 CPU, 3.4 GHz o/c'd to 4.1 GHz
Gigabyte GTX 760 GPU, also o/c'd, Nvidia 335.23 drivers
2 sticks of 4 gig ram
Windows 7 Pro 64 bit


I just finished building this rig:

Asus Z87 A motherboard
Intel i7-4770 CPU, 3.5 GHz o/c'd to 4.1 GHz, hyper threading disabled, Could clock higher but have heat problems.
Gigabyte GTX 760 GPU also o/c'd, Nvidia 335.23 drivers
1 stick of 8 gig ram
Windows 7 Ultimate 64 bit


The only projects I run are Optimized SETI and Einstein.
BOINC Manager version is 7.2.42.
Both CPU and GPU are enabled for all w/u.
I do not have a CPU core set aside for GPU use.
4 rigs going through a KVM switch to one keyboard, mouse and monitor.
Monitor is a HP w1907 LCD with VGA and DVI-D inputs (using VGA now due to KVM switch).
I will occasionally game on one of the rigs.
All units run 24/7, CPU and GPU temps average between 50 to 60 deg C.

My first (and possibly only) question is; Is it worthwhile to move the monitor to the integrated GPU and just use the GPU card for BOINC processing?

How much processing power does a monitor really steal?

I understand that I may need to install dummy monitor plugs into the GPU cards and write a Client Config file.
I think I may also need to configure Windows look for 2 monitors.

Would it help to set aside one CPU core for GPU use?
Now, the GPU just grabs what it needs from the CPU core and the w/u processing speed slows down 5 to 10% on that core.

I hope I have supplied enough information.

Thanks for your help!

Ron
8) Message boards : Questions and problems : Distributing cores to different projects (Message 50232)
Posted 19 Aug 2013 by Profile Ron Kosinski
Post:
That depends on the GPU application and how much it actually does on the GPU.

The Einstein GPU application does a lot of its calculations on the CPU, so here your times speed up enormously if you leave one core free to work together with the GPU. If you can live with 10x increased run times, you can turn the core back to doing CPU tasks.


SETI GPU WU average about 15 to 20% CPU usage. Some Einstein GPU WU will use about 25 to 30% CPU but others use only 10 to 15% CPU.

The CPU usage for the GPU processing seems to be spread out among all 4 cores dropping the average CPU WU workload percentage to around 95%.

All of the above workload figures are coming from BOINC Tasks 1.46. This program does not give any details on the GPU workload percentage.

As a side note, the CPU is overclocked by 800 MHz to 4.2 GHz and GPU is running at 1.3 GHz GPU clock with a Memory clock of 6.5 GHz. The system is stable and temps are good (CPU about 55C, GPU about 60C).
9) Message boards : Questions and problems : Distributing cores to different projects (Message 50229)
Posted 18 Aug 2013 by Profile Ron Kosinski
Post:
I currently have 3 boxes running BOINC projects SETI and Einstein;
AMD Athlon dual core, W7 Ult SP1(32 bit), BM 7.0.64
AMD Phenom quad core, W7 Ult SP1(32 bit), BM 7.0.64
Intel i5-4670K quad core, GTX 760, W7 Pro SP1(64 bit), BM 7.0.64

Both AMD boxes have been running for a while, the Intel box is new. Both AMD boxes split the cores between both projects (1 core on SETI, 1 core on Einstein on dual core box, 2 and 2 on quad core box). The new Intel box will not do this. All 4 cores run either SETI or Einstein at the same time and switch every 8 hours (my setting). The GPU will float between projects. I am running the latest optimized SETI apps from KWSN on all boxes.

How can I get the Intel box to distribute the cores like the other boxes?

On a slightly different topic; is it necessary to leave one CPU core open when using GPU for processing? I notice that the GPU WU do use some CPU time.

Thanks, Ron K.




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