2 Billion Results

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Profile Matt Lebofsky
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Message 1169256 - Posted: 8 Nov 2011, 23:27:33 UTC
Last modified: 9 Nov 2011, 19:38:45 UTC

Tuesday morning we reached 2 Billion BOINC results processed by SETI@home! Or to be more accurate, 2 to the power of 31 results (2,147,483,648). This explains why we haven't yet recovered from the weekly outage: we need to update code to accept larger numbers.


-- BOINC/SETI@home network/web/science/development person
-- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude

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Profile Gary CharpentierCrowdfunding Project Donor
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Message 1169266 - Posted: 8 Nov 2011, 23:53:09 UTC - in response to Message 1169256.

This morning we reached 2 Billion BOINC results processed by SETI@home! Or to be more accurate, 2 to the power of 31 results (2,147,483,648). This explains why we're a little slow to recover from today's outage: we need to update code to accept larger numbers.

Unsigned is not a long term solution!

Congrats to the crunchers and the project.

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Profile Francis Noel
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Message 1169274 - Posted: 9 Nov 2011, 0:12:32 UTC - in response to Message 1169266.

Hooray for wrap-arounds !

gratz


mambo

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Message 1169275 - Posted: 9 Nov 2011, 0:14:02 UTC

Very awesome. Now if this trend follows the population trend, we should be seeing our 3 billionth result sometime next year.

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Profile BilBg
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Message 1169281 - Posted: 9 Nov 2011, 0:36:42 UTC - in response to Message 1169266.

Unsigned is not a long term solution!

"Unsigned long" (4 bytes) is not a long term solution ;)
but at rate of even a 100 000 Results per hour will give the project ~2.5 years to think about another fix :)





- ALF - "Find out what you don't do well ..... then don't do it!" :)

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Message 1169282 - Posted: 9 Nov 2011, 0:47:29 UTC - in response to Message 1169281.

Unsigned is not a long term solution!

"Unsigned long" (4 bytes) is not a long term solution ;)
but at rate of even a 100 000 Results per hour will give the project ~2.5 years to think about another fix :)



Hmm, where I come from 4 bytes is just an int; ulong is 8 bytes.
Mebbe you need to get a more modern computer. :-)

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Message 1169310 - Posted: 9 Nov 2011, 3:13:18 UTC - in response to Message 1169282.

Hmm, where I come from 4 bytes is just an int; ulong is 8 bytes.
Mebbe you need to get a more modern computer. :-)

Depends on the compiler and the environment. I was doing some C++ stuff in Linux a few years back. Two machines, same distro, but one was 32-bit and the other was 64. ulong on 32-bit was 4 bytes, on 64-bit it was 8.
Linux laptop:
record uptime: 1511d 20h 19m (ended due to the power brick giving-up)

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Profile Dimly Lit Lightbulb 😀Project Donor
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Message 1169311 - Posted: 9 Nov 2011, 3:20:48 UTC - in response to Message 1169256.

This morning we reached 2 Billion BOINC results processed by SETI@home! Or to be more accurate, 2 to the power of 31 results (2,147,483,648). This explains why we're a little slow to recover from today's outage: we need to update code to accept larger numbers.

Congratulations all round, to the pub! :)

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Profile S@NL Etienne Dokkum
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Message 1169359 - Posted: 9 Nov 2011, 7:51:28 UTC

Great result for the project and all it's crunchers !!!

Two days after I read the US government "has no proof aliens excist" I surely believe this private project will proof them wrong in my lifetime...

Well, I think : people don't moan if you can't report your work... ET can wait another day !

For you guys at the lab : keep up the great job !!!


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Profile Chris SCrowdfunding Project Donor
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Message 1169394 - Posted: 9 Nov 2011, 11:38:02 UTC

Well done everybody, a great milestone to be proud of.

Congratulations all round, to the pub! :)

I'll raise a glass to that :-)

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Profile William de Thomas
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Message 1169427 - Posted: 9 Nov 2011, 13:56:54 UTC

wow. I don't have not even ONE work unit to crunch. Now that is super slow. And I am thinking on upgrading with a P6T7 motherboard and four GTX 570, I must be crazy.


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David SProject Donor
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Message 1169428 - Posted: 9 Nov 2011, 13:58:35 UTC

Yaaaaaaayyy!!!!!


David
Sitting on my butt while others boldly go,
Waiting for a message from a small furry creature from Alpha Centauri.


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Message 1169435 - Posted: 9 Nov 2011, 14:26:40 UTC

"wow. I don't have not even ONE work unit to crunch. Now that is super slow. And I am thinking on upgrading with a P6T7 motherboard and four GTX 570, I must be crazy."

This is your best opportunity to do your upgrade. No WUs, the machine is nice and cool. You won't miss a thing. If you wait, your computer will be loaded up with work units and you might not have the heart to stop them.

All of you crunchers out there contemplating an upgrade, take this as a sign and do it now. Strike while the iron is cold! :)


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Profile KWSN THE Holy Hand Grenade!
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Message 1169448 - Posted: 9 Nov 2011, 15:27:44 UTC - in response to Message 1169359.
Last modified: 9 Nov 2011, 15:28:49 UTC

Great result for the project and all it's crunchers !!!

Two days after I read the US government "has no proof aliens excist" I surely believe this private project will proof them wrong in my lifetime...

Well, I think : people don't moan if you can't report your work... ET can wait another day !

For you guys at the lab : keep up the great job !!!


On The Other Hand, the US Government also doesn't have proof that aliens don't exist... ;-)
.

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Message 1169450 - Posted: 9 Nov 2011, 15:38:27 UTC - in response to Message 1169448.

I am sorry I have to respond to this: you cannot prove a negative.

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Profile Chris SCrowdfunding Project Donor
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Message 1169455 - Posted: 9 Nov 2011, 16:11:25 UTC

Before we get a gentle nudge from a Mod, a teeny off topic guys. This is meant for Techy news from the Project Staff.

:-)

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Profile William de Thomas
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Message 1169523 - Posted: 9 Nov 2011, 19:05:03 UTC - in response to Message 1169455.

True, but they are celebrating 1 billion and there are no work units to work on for THREE days. I have my computer set for 10 days of work!! Something is not right.


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Profile BilBg
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Message 1169526 - Posted: 9 Nov 2011, 19:08:06 UTC - in response to Message 1169310.

Hmm, where I come from 4 bytes is just an int; ulong is 8 bytes.
Mebbe you need to get a more modern computer. :-)

Depends on the compiler and the environment. I was doing some C++ stuff in Linux a few years back.
Two machines, same distro, but one was 32-bit and the other was 64.
ulong on 32-bit was 4 bytes, on 64-bit it was 8.

Yes, I think the C Standard do not define the exact size in bytes of integer types.

Maybe the size of unsigned long int is chosen to match the full size of CPU registers?
(in 32-bit CPU mode the CPU registers are seen as 32-bit/4 bytes;
And in 64-bit CPU mode the full length CPU registers are "unlocked" - 64-bit/8 bytes)

As you can see different sites give different values for int size in bytes:
http://en.wikipedia.org/wiki/C_variable_types_and_declarations
http://ieng9.ucsd.edu/~cs30x/Std.C/types.html#Basic%20Integer%20Types
http://www.cplusplus.com/doc/tutorial/variables/





- ALF - "Find out what you don't do well ..... then don't do it!" :)

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Message 1169527 - Posted: 9 Nov 2011, 19:10:44 UTC - in response to Message 1169523.

True, but they are celebrating 1 billion and there are no work units to work on for THREE days. I have my computer set for 10 days of work!! Something is not right.

There have been limits in place for weeks now preventing caches from filling to anything near what you have set, depending on the speed of your computer.

The limits have been in place due to a bad Boinc server code change, which still has not been fully corrected yet. It may be some weeks yet after the current situation is sorted for the original problem to be tackled.
Kitties make wonderful traveling companions on your journey through life.

Have made a few friends in this life.
Most were cats.

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Message 1169532 - Posted: 9 Nov 2011, 19:26:22 UTC - in response to Message 1169523.

True, but they are celebrating 1 billion and there are no work units to work on for THREE days. I have my computer set for 10 days of work!!
Something is not right.

That "Something" is time needed to change the code and test it.

Do you remember the Y2K problem?
(dates written as 00 may be interpreted as 1900 or 2000 because only one byte was used for date in some old programs/databases)

This is something similar - for now they can't accept your new results
because you will get/return e.g. result #2,150,000,000 and they do not have "room" with such high a number in their "hotel".

From the First post:
"... This explains why we're a little slow to recover from today's outage:
we need to update code to accept larger numbers."





- ALF - "Find out what you don't do well ..... then don't do it!" :)

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Message boards : News : 2 Billion Results


 
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