What's up with these WU's credit?

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Profile HAL9000
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Message 1176764 - Posted: 9 Dec 2011, 13:59:56 UTC - in response to Message 1176753.  



Suddenly no one would like APs anymore and start loving this now so much hated shorties...

I for one would happily do shorties all day long, the only problem with that is I cannot download them as fast as I can crunch them.

This machine does a shortie in 4 min 30 sec, at 3 per card, three cards, that equals 1 shortie every 30 sec.

Or 2,880 per day:-)

Shorties have another consequence besides just digging a deeper hole for the servers to work out of...

The idle time taken to start crunching the next wu. At 2,880 shorties/day almost 6.4 hours/day would be idle time for that host, if the gap is 8 seconds long on average. Which coupled with any Credit issues causes a further drop in RAC.

Reducing idle time increases RAC and takes the additional load off of the servers - all trying to keep up.

Lt

edited

I think with running multiple tasks on the video card you don't really have idle time. So there wouldn't really be ~6 hours of idle time.
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Message 1176769 - Posted: 9 Dec 2011, 14:17:08 UTC - in response to Message 1176764.  


The CPU/GPU itself is not 'idle', the process is idle. There's always going to be a crunching gap when one wu ends and the next is starting to crunch in earnest.

My Statistics display in BM has been on a ~10 degree down slope since the shortie storm began around the beginning of Nov. Anyone crunching mostly shorties may see a similar line.

Lt

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Message 1176775 - Posted: 9 Dec 2011, 14:45:32 UTC - in response to Message 1176769.  


The CPU/GPU itself is not 'idle', the process is idle. There's always going to be a crunching gap when one wu ends and the next is starting to crunch in earnest.

My Statistics display in BM has been on a ~10 degree down slope since the shortie storm began around the beginning of Nov. Anyone crunching mostly shorties may see a similar line.

Lt


Yeah my graph has been showing the same downward spiral for the most part.
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Message 1176779 - Posted: 9 Dec 2011, 14:56:35 UTC


@HAL9000

I probably should not have said "idle"..."not crunching" might be clearer. In my mind they are equal...


Lt

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Message 1177177 - Posted: 11 Dec 2011, 1:45:30 UTC

Pulled the 8600GTS. Made no difference.

Wouldn't be so frustrating if the WUs ended up as errors.

The NewCredit math must make sense somewhere but maybe they are ExtraTerrestial?
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Message 1177184 - Posted: 11 Dec 2011, 4:44:33 UTC - in response to Message 1177177.  

Pulled the 8600GTS. Made no difference.

Wouldn't be so frustrating if the WUs ended up as errors.

The NewCredit math must make sense somewhere but maybe they are ExtraTerrestial?


The official word is that CreditNew assures a long term stability on the amount on credits you get and they priorized that over the premise that 2 equal task you should receive equal credits.

I agree... Mathematically a random number generator (aka CreditNew :D) also gives a long term stable average...

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Message 1177187 - Posted: 11 Dec 2011, 4:55:21 UTC - in response to Message 1177184.  

Pulled the 8600GTS. Made no difference.

Wouldn't be so frustrating if the WUs ended up as errors.

The NewCredit math must make sense somewhere but maybe they are ExtraTerrestial?


The official word is that CreditNew assures a long term stability on the amount on credits you get and they priorized that over the premise that 2 equal task you should receive equal credits.

I agree... Mathematically a random number generator (aka CreditNew :D) also gives a long term stable average...

The funny thing is that I havn't seen a "long term stable average" since the new credit system was introduced.

Cheers.
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Message 1177209 - Posted: 11 Dec 2011, 9:19:52 UTC - in response to Message 1177187.  

Pulled the 8600GTS. Made no difference.

Wouldn't be so frustrating if the WUs ended up as errors.

The NewCredit math must make sense somewhere but maybe they are ExtraTerrestial?


The official word is that CreditNew assures a long term stability on the amount on credits you get and they priorized that over the premise that 2 equal task you should receive equal credits.

I agree... Mathematically a random number generator (aka CreditNew :D) also gives a long term stable average...

The funny thing is that I havn't seen a "long term stable average" since the new credit system was introduced.

Cheers.


Not entirely true.
On APs for example.

Q4 2010 avg 900
Q1 2011 avg 850
Q2 2011 avg 800

now 700 - 750.

It goes stable downwards.


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Message 1177217 - Posted: 11 Dec 2011, 9:32:12 UTC - in response to Message 1177209.  

Yes it's definitely going stably downwards (or backwards if you like that term better). :(

Cheers.
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Message 1177218 - Posted: 11 Dec 2011, 9:38:09 UTC

If I remember it correctly, those long AP tasks (or at least those who settled down in order to finish it up) receive much higher credits than the same AP task which finish up in just a short time.

Definitely the run time length of a given task determines the amount of credit being returned back from such tasks.
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Message 1177219 - Posted: 11 Dec 2011, 9:46:26 UTC - in response to Message 1177218.  

If I remember it correctly, those long AP tasks (or at least those who settled down in order to finish it up) receive much higher credits than the same AP task which finish up in just a short time.

Definitely the run time length of a given task determines the amount of credit being returned back from such tasks.


No not true.
I have dozens of screenshots.

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Message 1178442 - Posted: 16 Dec 2011, 9:11:29 UTC
Last modified: 16 Dec 2011, 9:13:10 UTC

A quick check thru my valid AP WUs:

http://setiathome.berkeley.edu/workunit.php?wuid=861013181
5.90 (granted credit)
45,540.74 (CPU time, by wingman, ~12 hours)
5542.84 (GPU time, mine)


http://setiathome.berkeley.edu/workunit.php?wuid=859872786
13.31 (granted credit)
71,981.45 (CPU time, by wingman, ~20 hours!!!!)
12,615.68 (GPU time, mine)


http://setiathome.berkeley.edu/workunit.php?wuid=883027112
199.98 (granted credit)
852.07 (GPU time, mine)
56,542.34 (CPU time, by wingman, ~16 hours)

I'm quite surprised wingmen are getting so little credit for their CPU time.
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Message 1182538 - Posted: 3 Jan 2012, 4:43:05 UTC - in response to Message 1177209.  


Not entirely true.
On APs for example.

Q4 2010 avg 900
Q1 2011 avg 850
Q2 2011 avg 800

now 700 - 750.

It goes stable downwards.



Yup, and still going downwards. Now one can be happy if one gets 700 for an AP. 650 is more normal now. So, at the end of this year maybe 400 will be the norm for an AP.

CreditNew is a total success (NOT)
Too much hormone treated meat.
Too much Monsanto veggies.
Too old and outdated constitution.
A crazy problem, as you Yanks use to say......

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Message 1182552 - Posted: 3 Jan 2012, 6:49:29 UTC - in response to Message 1182538.  


Not entirely true.
On APs for example.

Q4 2010 avg 900
Q1 2011 avg 850
Q2 2011 avg 800

now 700 - 750.

It goes stable downwards.



Yup, and still going downwards. Now one can be happy if one gets 700 for an AP. 650 is more normal now. So, at the end of this year maybe 400 will be the norm for an AP.

CreditNew is a total success (NOT)

Yes the "new credit" system is really unstable and should be pulled and stuck up...... [self edited]

At least with the old credit system you had a good idea where you stood.

Cheers.
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Message 1185190 - Posted: 14 Jan 2012, 9:12:27 UTC
Last modified: 14 Jan 2012, 9:14:58 UTC

Wonky credit continues - many sub 100credit for AP-WUs.

I feel bad for CPU wingmen, some crunching for hours (this, 15.58 credit ) or DAYS (this, 13.17 credit!!!).

Kudo to this particular persistent chap, 14.48days, 2,959.62 credits.

:)

EDIT: Maybe a minima 200 credit floor, hmmm?

EDIT2: Since I hit 5m over here, I'll be switching to A@H or E@H. I wish the ATI-OpenCL get released soonish. :)
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Message 1185456 - Posted: 15 Jan 2012, 11:52:00 UTC - in response to Message 1185190.  
Last modified: 15 Jan 2012, 11:52:28 UTC

but why we are getting these credits anyways ?

what we can buy with that ? LOLz
How much credits cost a telescope ? lol j/k
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Message boards : Number crunching : What's up with these WU's credit?


 
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