Posts by John B. Kalla

11)

Message boards : Number crunching : Issues with new HR algorithm

( Message 3052 )
Posted 3769 days ago by Profile John B. Kalla
What is the new HR algorithm? Is that why my workunits now take 11hrs each (where they used to take 1.4)? Or is that a separate issue?

12)

Message boards : Number crunching : Credits on Intel Mac with app 5.05

( Message 3049 )
Posted 3769 days ago by Profile John B. Kalla
I have noticed a slowdown on MacOS Intel, too. The old application was about 2.5 hours, the new one was about 5.5 hours.


Wow. Then you're lucky, cuz mine seem to be taking about 10-11hrs each, whereas last week they were taking 1.6hrs each...
13)

Message boards : Number crunching : Credits on Intel Mac with app 5.05

( Message 3042 )
Posted 3770 days ago by Profile John B. Kalla


It looks like 5.05 is doing excessive disk I/O and it's slowing the application. There's a thread on "Excessive disk activity" here in "Number crunching". Could you post this over there as well. It looks like the CPU usage dropping to @ 74% could mean that the program is I/O bound now. Do you have something like the linux "top" program which shows what percent of time is spent in I/O wait, and could you post that over there as well?

Thanks,

-- David


Actually, I'm using BOINC 5.8.17 (latest mac version). I was using the same version since it came out and have never had this problem. Here's a screenshot of top. I assume the charmm apps (I have four CPUs) are what you're looking for? BOINCManager seems to use very little CPU, as does boinc. If this doesn't show all that you're looking for, I can take a larger screenshot...



And here's a screenshot of CoreDuoTemp:



Normally, the past few weeks, since I enabled all four processors, the CPUs run at around 100% and the temps around 193F.
14)

Message boards : Number crunching : Credits on Intel Mac with app 5.05

( Message 3040 )
Posted 3770 days ago by Profile John B. Kalla
Sorry if you've thought of this before, but did you recheck your General Prefs page? Perhaps you're only using one processor or maybe the setting changed to only use 25% of the cpu or something.

I know you've probably already looked into that, but I thought I'd throw it out there, since it happened to me recently! My max processors was set at 2 instead of 4 (or the new default of 16).

Good luck with your problem! :-)


Actually, I just noticed that the same thing is happening to me. Where it used to take 1:45 or less per workunit, now it has taken 2:25 and I'm only 24% completed. Are the workunits longer this week? I tried dumping units and reinstalling BOINC with no change.

FYI: I just checked my CPUs and they're only operating @ 74%, where they used to be at 100%. I know this doesn't account for the massive difference, but maybe it's a clue?

PS... I probably should have posted this in a different thread. Please move it if you want to!
15)

Message boards : Number crunching : Credits on Intel Mac with app 5.05

( Message 3038 )
Posted 3770 days ago by Profile John B. Kalla
Sorry if you've thought of this before, but did you recheck your General Prefs page? Perhaps you're only using one processor or maybe the setting changed to only use 25% of the cpu or something.

I know you've probably already looked into that, but I thought I'd throw it out there, since it happened to me recently! My max processors was set at 2 instead of 4 (or the new default of 16).

Good luck with your problem! :-)
16)

Message boards : Macintosh : Where are the Intel Macs of this world?

( Message 2845 )
Posted 3787 days ago by Profile John B. Kalla
Sorry to sound ignorant, but what does the RAC number below the avatar signify?


Some info here:

http://boinc-wiki.ath.cx/index.php?title=RAC



Excellent! Thanks!
17)

Message boards : Macintosh : Where are the Intel Macs of this world?

( Message 2840 )
Posted 3787 days ago by Profile John B. Kalla
Sorry to sound ignorant, but what does the RAC number below the avatar signify?
18)

Message boards : Macintosh : Where are the Intel Macs of this world?

( Message 2833 )
Posted 3788 days ago by Profile John B. Kalla
Yay! The workunits are back!
19)

Message boards : Macintosh : Where are the Intel Macs of this world?

( Message 2818 )
Posted 3789 days ago by Profile John B. Kalla
Also, the Xeon 51xx and 53xx perform much more slowly with only 2 DIMMs. They really need 4 DIMMs to get the max performance out of them. This has been demonstrated over on SETI several times now.


Is there any special configuration? I think I've got all four of my DIMMs on the original riser. (4x512MB)
20)

Message boards : Macintosh : Where are the Intel Macs of this world?

( Message 2796 )
Posted 3790 days ago by Profile John B. Kalla
Now if only I could get more work...


Great to see David could help you out! He and Suguru are great moderators :-)

Anyway, we will start generating work again in the next couple of days when the HR mod is is.

Thanks
Andre


Great! Thanks, Andre!


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