RAC?

Variable
Variable
Joined: 6 Oct 13
Posts: 31
Credit: 877255458
RAC: 744217
Topic 197258

Hello,

Just wondering if my RAC on my desktop system seems normal for its specs?

Quote:

CPU type

AuthenticAMD
AMD Phenom(tm) II X4 965 Processor [Family 16 Model 4 Stepping 3]

Number of processors

4

Coprocessors

CAL AMD Radeon HD 7850/7870 series (Pitcairn) (1024MB) driver: 1.4.1741

I have it throttled to about 50% cause I've been wary about excessive heat. My RAC appears to be 10% or so of other similar systems I've seen in the project stats though...

FalconFly
FalconFly
Joined: 16 Feb 05
Posts: 191
Credit: 15650710
RAC: 0

RAC?

If you mean just your CPU, the figure of 3177RAC currently in your profile seems okay for 50% CPU load.
Heat shouldn't be a hughe issue with your CPU, provided you don't have an uncooled, small computer case and/or a too small CPU cooler.

If you were to use your GPU, your RAC would increase manyfold, but if CPU heat is already a concern for you, setting the GPU under load is likely not an option.

PS.
Instead of throttling to 50%, I'd rather set BOINC to use 2 processors only (which will give you exact 50% CPU load of your quadcore CPU), that is usually more efficient.
Otherwise, BOINC will just switch max power - idle - max power - idle all the time every few seconds, as it virtually can't adjust for any specific set CPU usage, it has to solve it with time running (100%) vs. time idle.

Variable
Variable
Joined: 6 Oct 13
Posts: 31
Credit: 877255458
RAC: 744217

That's good that output for

That's good that output for the CPU seems fine, but from what I can tell I have the GPU enabled which is why I'm a bit confused. In the tasks list of the client it says that the GPU is computing. Seems like RAC should be higher?

FalconFly
FalconFly
Joined: 16 Feb 05
Posts: 191
Credit: 15650710
RAC: 0

Seems your System is running

Seems your System is running BOINC only once a while, your Task list only has a very small number of tasks displayed, spread over about a week (or it is running other projects alongside, in that case this would be normal).

So, not knowing for how many hours/day your System is actually computing Einstein@Home data, it's basically impossibly to say how well your System is doing overall.
But judging from the few completed tasks, their runtimes seem absolutely okay when BOINC actually runs Einstein tasks.

Since it seems your GPU is currently set to compute only one WorkUnit at a time, setting the BRP utilization factor in your Einstein@Home preferences from 1.0 (= 1 GPU WorkUnit at a time) to 0.5 (= 2 WorkUnits parallel) would increase GPU production (at the price of ~10% higher GPU load and somewhat higher GPU temps).
Note that from setting it to it having effect requires a fresh GPU workunit with these settings to be downloaded, in your config I reckon after about a day.

Variable
Variable
Joined: 6 Oct 13
Posts: 31
Credit: 877255458
RAC: 744217

Thanks for the help, I've got

Thanks for the help, I've got some things to look at on my machine this weekend. :)

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