Posts by Brian Priebe

1) Message boards : Questions and problems : Windows Server 2003 (Message 43891)
Posted 30 Apr 2012 by Brian Priebe
Post:
Most unfortunate since 6.x could be manually installed on a DC.
2) Message boards : BOINC client : massive work fetch bug in 7.0.25 (Message 43579)
Posted 18 Apr 2012 by Brian Priebe
Post:
The change is that it will try to do a work request at the same time as it's reporting work.
But when does it report results when it is NOT doing a work request? Does it wait until WU's available is less than "Minimum work buffer"? If so, setting "Max. Additional work buffer" to a number of days could presumably delay transmitting results for a very long time.
3) Message boards : BOINC client : massive work fetch bug in 7.0.25 (Message 43534)
Posted 16 Apr 2012 by Brian Priebe
Post:
Find how BOINC won't immediately after uploading & reporting work ask for new work...
How do the scheduler changes affect the reporting of completed WU's? 7.0.25 seems to keep completed WU's around a lot longer than 6.12.34 did. In the particular case of Milkyway@Home, 6.x always uploaded the results almost immediately (~1min after completion). 7.x lets the results sit there by the multiple dozens for an indeterminate period of time.
4) Message boards : GPUs : The ultimate high-end GPU-driven cruncher that excels at gaming and multi-monitor setup (Message 41832)
Posted 28 Dec 2011 by Brian Priebe
Post:
"the BEST gaming gpu, right now, does, I think about 1-1.5Glfops tops. and a low end Tesla does 1TFlops single precision and 700GFlops double"

For single precision, you are underestimating the capabilities of modern consumer-grade GPU's by a factor of several thousand.
5) Message boards : Questions and problems : Multiple time windows in day-of-week override (Message 35615)
Posted 5 Nov 2010 by Brian Priebe
Post:
The most expensive one was active twice a day - the peak rate periods at the morning and evening (like <night>-<morning peak>-<daytime>-<evening peak>-<night>)

That is pretty much the scheme they have adopted here for the winter. The summer peaks are configured differently for air conditioning use mid-day.

If I can configure it for overlapping midnight, then I can at least get it running 10hrs/day in the cheapest period. But there are 6 hours of mid-peak in mid-day that would be excluded.

It's too bad it doesn't take a comma-separated list.
6) Message boards : Questions and problems : Multiple time windows in day-of-week override (Message 35603)
Posted 3 Nov 2010 by Brian Priebe
Post:
With the advent of time-of-use billing for electricity here, I'd like to suspend BOINC tasks for the peak rate periods. Is there a way to specify more than one time period in the day-of-week override?
7) Message boards : Questions and problems : BOINC using too many CPU's (Message 31802)
Posted 27 Mar 2010 by Brian Priebe
Post:
To revisit this issue, the same thing happened in reverse when hyperthreading was re-enabled. BOINC message log shows it saw 16 logical processors yet dispatched only 8 CPU tasks. The apparent solution is to re-run the CPU Benchmark from the Advanced menu. That changes the CPU count.
8) Message boards : Questions and problems : BOINC using too many CPU's (Message 31592)
Posted 15 Mar 2010 by Brian Priebe
Post:
This is bizarre to say the least. Rebooting the machine a SECOND time solved this problem. BOINC still says 8 processors found but now it's only running 8 (+1 GPU) tasks instead of 16.

The only difference from the last reboot was that I manually shut down BOINC manager/client beforehand. Maybe something to investigate in more depth next time I have to enable hyperthreading on that box.
9) Message boards : Questions and problems : BOINC using too many CPU's (Message 31589)
Posted 15 Mar 2010 by Brian Priebe
Post:
XP shows 8 processors in Device Manager.

BOINC says in the message log:

14-Mar-2010 21:54:27 		Processor: 8 GenuineIntel Intel(R) Xeon(R) CPU           E5540  @ 2.53GHz [x86 Family 6 Model 26 Stepping 5]
10) Message boards : Questions and problems : BOINC using too many CPU's (Message 31584)
Posted 15 Mar 2010 by Brian Priebe
Post:
I recently turned hyperthreading off on a dual-processor Nehalem workstation. BOINC 6.10.18 restarted, claimed in the message log that it found 8 XEON processors, but is still running 16 project WU's (+1 GPU) simultaneously. As these complete it isn't dropping the number of simultaneously-executing WU's: it just starts up a new WU as if it still had 16 logical processors.

Is there some configuration item that needs to be manually changed?




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