BRP7: more electricity per task & fewer credits

WPrion
WPrion
Joined: 15 Mar 16
Posts: 26
Credit: 762,815,882
RAC: 489,980
Topic 230119

I had not crunched any e@h for a few weeks, and when I came back I see that BRP7 is the main focus.  

Compared to FGRPB1G I notice that while BRP7 CPU time dropped by about 90%, the overall runtime (including GPU) increased by about 80%.  (GPU is running continuously as before, with the pause at the end, and at the same usage% and power%, just running longer).

 

Since GPU crunching power is much, much greater (and power hungry) than one CPU thread I'm surprised the credits per task actually dropped about 3%.

Are others seeing similar performance changes with BRP7?

This makes me curious as to how credit value is assigned...

 

Thanks,

 

Win

 

 

Ian&Steve C.
Ian&Steve C.
Joined: 19 Jan 20
Posts: 3,793
Credit: 37,259,191,834
RAC: 50,094,523

it's a different search so

it's a different search so credits are not the same. the app is not as optimized as the old app was. FGRPB1G had a  long time in development and iterative improvements over the years. BRP7 has just started. i don't think you can really compare them so directly.

you can try the GW tasks if you like. they pay 5000 credits per task. they will take longer to run, but you can try to see if running 2-3 at a time will improve overall production since you have plenty of VRAM.

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WPrion
WPrion
Joined: 15 Mar 16
Posts: 26
Credit: 762,815,882
RAC: 489,980

Of course, it's a different

Of course, it's a different task / different search.  But credits are supposed to be proportional to computer work done.  From BOINC:

"A BOINC project gives you credit for the computations your computers perform for it. BOINC's unit of credit, the Cobblestone (named after Jeff Cobb of SETI@home), is 1/200 day of CPU time on a reference computer that does 1,000 MFLOPS based on the Whetstone benchmark"

I can't speak for the tasks' optimization, but my computer is definitely working longer (and con$uming more electricity) per task for fewer credits.

I'd still like to know how these values are assigned.  I'm assuming it's more considered than pulling a random number out of a hat.

Thanks,

Win

 

[edit - removed PS]

Ian&Steve C.
Ian&Steve C.
Joined: 19 Jan 20
Posts: 3,793
Credit: 37,259,191,834
RAC: 50,094,523

the BOINC definition of

the BOINC definition of "cobblestones" isn't relevant since the project is using static credit reward and not the BOINC defined system for credit reward. the project has said in the past that they were probably awarding too much credit for FGRPB1G, but decided to let it ride rather than change it. think of it as a bonus, rather than a benchmark. You shouldn't worry about points vs power used when comparing different subprojects. now that FGRPB1G is gone, everyone will equally move down in credit earnings leading to pretty much the same overall standings vs relative power they are donating to the project.


GW = "Gravitational Wave" for which there are three selections available. cross referencing the Server Status page (linked at the bottom of every E@h web page) you can see O3AS is the only one with any work, O3MD1 is a CPU search, O3MDF was a GPU search, but no data anymore. so you want O3AS.

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mrchips
mrchips
Joined: 17 Oct 12
Posts: 4
Credit: 92,949,307
RAC: 151,556

i am getting more VALIDATION

i am getting more VALIDATION ERRORS than i am completed tasks.

run time is the same, work unit status was good

Ian&Steve C.
Ian&Steve C.
Joined: 19 Jan 20
Posts: 3,793
Credit: 37,259,191,834
RAC: 50,094,523

mrchips wrote: i am getting

mrchips wrote:

i am getting more VALIDATION ERRORS than i am completed tasks.

run time is the same, work unit status was good

could be a driver issue. you're getting a lot of actual computation errors also.

i would recommend running DDU from safemode to completely remove your nvidia drivers. then install fresh drivers from the nvidia installer (not from windows update) and try again.

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