WU will run for ~40 hours?
9 Jan 2011 8:54:08 UTC
Topic 195565
(moderation:
Today I got a new Binary Radio Pulsar Search 1.04 WU that will run for ~40 hours. Is that a joke or what?
See http://einsteinathome.org/task/214750205
WU will run for ~40 hours?
)
I made the link active.
That tasks seems to be your first BRPS one (in a longer time). So, the Duration Correction Factor might be out of whack for that application. After all, the times given in BOINC manager are only estimates.
Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
The Boing Manager gave 58
)
The Boing Manager gave 58 hours, I let the WU run for some time to calculate the time by myself, result is ~40 hours :-(
Piet
RE: The Boing Manager gave
)
Hmm...your other tasks seem to underperform as well in comparison to similar hardware, see this one , for example:
http://einsteinathome.org/workunit/90850716
This is a notebook we are talking about? I suspect that it is not processing the tasks as fast as it could. Possible reasons for this include:
* Windows energy profile settings command the PC not to run at the max possible clockrate
* The cooling is poor and the PC throttles back automatically to prevent overheating.
I would suggest to use a tool like CPU-Z to monitor the CPU clock rate while the E@H tasks are executing. In theory, the runtime for a BRP3 unit on your kind of hardware should be more like 24 hrs, 30 hrs at worst.
CU
HB
Yeah, a notebook. As
)
Yeah, a notebook. As everyone: I didn't change anything! :-)
But I will look for the reason of underperformance.
Thanks Piet
RE: Hmm...your other tasks
)
The energy profile is set to full power if requested.
This little box IS getting hot, but the fan is not getting crazy, just hearable.
CPU-Z shows a core speed fluctuating between 990-1815MHz running 2 Einstein WUs. Interesting is Einstein WUs show more often 990MHz then lets say Spinhenge or Poem. Any more ideas?
Piet
RE: This little box IS
)
Thermal throttling. I'm not sure how tweaked the BRP WU's are at the moment, but the GC1 WU's are highly optimized to run the CPU at maximum performance, if Spinhenge and Poem aren't as heavily tweaked they wouldn't put as much of a load on the CPU causing it to run cooler.
Probably your heatsink is clogged up with dust. Turn your computer off and remove the battery. Then unscrew the access plate over the fan, hold the fan in place with a finger tip, and blow it out with a can of air. You can try blowing without opening it up, but generally will only dislodge a fraction of the dust. If you do this stick something into the fan holes to stop it from spinning, I've heard of some fans failing after being spun too fast when blown out.
RE: Then unscrew the access
)
IF you have an access plate....I can remember my last attempt to get to the heatsink of my previous Samsung notebook...I was really relieved when I finally managed to get it all back together again :-(. No fun.
CU
HBE
RE: RE: Then unscrew the
)
There is that, which is why I mentioned blowing through the fan holes as an alternative. The worst I've ever had to deal with was a 5(?) year old Toshiba that interlocked the access plates so I had to remove 4 others before I could release the one over the fan.
Notwithstanding the
)
Notwithstanding the supposition that the very long run work units are user workstation configuration specific, I too have see some REALLY long run work units of late -- a number in excess of 25 hours -- on a variety of hardware.
I suspect that at least part of this is in fact project specific.
Hi, The (relatively) new
)
Hi,
The (relatively) new BRP3 tasks which are now crunching Parkes radio telescope data can indeed take around 25 hrs. Needless to say the credits per task are also higher than for the other tasks (S5GC1HF LIGO data crunching jobs).
Happy crunching
HB