Posts by marsinph

1) Message boards : News : Unexplained database slowness (Message 1927976)
Posted 4 Apr 2018 by Profile marsinph
Post:
Hello all of you.
I think everyone see the problems y differents ways. All of uou, experimented tester knwns much ore than me.
My only idea is only to stop producing work. Arecibo is out. So no new tasks at this time.
Stopping producing work will for sure be not apreiated to all of us. But.
A least, it will give time to server to absorbe all WU in queue.
Servers will be more able to give more power to all other application.
So I really thik, after a few days, all very late works will be resorbed, the bottlneck reduced.
Then staff can work more easily on DB.
DB try to work, but receive more and more WU ! It is never ending.
Why not to FULLY stop the project for a few days and so give fresh air to server to breaths (also to staff)
I think everyone become tired about all the problems.
We, normal cruncher as me, probably, we will lost CR and AVG due to longer outage. And then ????
We will not die !
It is my suggestion : stopping producing work. And let the time , the time to solve by self, with help from staff.
Sorry, I stay with my idea : stopping producing work, Disable up/down loas server. I know, some WU will be out of time.
Or perhaps, no any work sending to us, upload server active to let finish WU out in field, And then closing up/down
after one week. Then let the staff working. It need one week ? two weeks ? 3 weeks ? no problem.
As long staff give information.
Best regards from Belgium
2) Message boards : News : Unexplained database slowness (Message 1927795)
Posted 2 Apr 2018 by Profile marsinph
Post:
Why not to fully stop producing work !!!
Why produce if all WU/results goes to DB, but system can not purge it.

The bottlenek effect make it more and more difficult !
"Bruno" is the less powerfull server, but with the most work !
So, I will leave SETI till it again normal works (I hope it will do, i!!).
Why so pessismist ? Because since november, it are more and more problems.
In fact, there are more days with problems than normal day.
DB problems, connections problems, some DNS problems,....
For sure because very few news from staff.

Thanks Grant for explanations.. By reading you, one solution is to stop producing work till DB normally works.
I repeat, why produce work if system can not manage the results.
3) Message boards : News : Unexplained database slowness (Message 1927732)
Posted 1 Apr 2018 by Profile marsinph
Post:
hello everyone
Thanks Eric for update.
But ! I repeat : But !
Since a few months there are more problems than something else.
Problems to connect, server down, slow or unavailaible (due to DNS error)
Unaible to get enough WU. I have a mid rage computer and mid rage GPU,
I understand the limit on 100 WU / CPU / GPU to avoid nerver ending WU sent to inactive cruncher.
Like the most of us, after a few hours outage, we are without WU to crunch.
Why not to adapt this amount, based on the turnaround time ?

I am sure more and more cruncher go to other project.
I am on SETI from the begining. I try to crunch as much as possible, but now, I am tired about all
those problems.

Also create a team to collect as much as possible user. Often I send mail to team to ask to not give up.
But more and more, we are tired of all those problems.

I really do not kown what happen at SETI, but it started in november 2017.
More or less at same time with the change of credits / WU .
In only one month, I receive more credits on three projects together than in twenty years on SETI !!!

What really happens with SETI ???
4) Questions and Answers : GPU applications : Perhaps stupid question ! Can I put 2 differents GPU card (Message 1923594)
Posted 9 Mar 2018 by Profile marsinph
Post:
Hello everyone.
My host : http://setiathome.berkeley.edu/results.php?hostid=8380124
Mainboard : Asrock Z77 Extreme 4 (http://www.asrock.com/mb/Intel/Z77%20Extreme4/index.fr.asp )
Like you see it have a 3D Vision GeForce 570 (2GDDR5) .

I have a unused MSI GeForce 660Ti (2GDDR5)
Can I put it on MB ?
Of course no SLI between the card.
First essential question : Win7 will accept it ?
It are similar GPU, same drivers.
If yes, can I assign a project to one card and a other project on the second card
and lest SETI only run on CPU (it is already now on all my computers.
5) Message boards : Technical News : What next? (Mar 04 2018) (Message 1923122)
Posted 7 Mar 2018 by Profile marsinph
Post:
Hello Matt,
I also not find a good idea to post a forum on all other media.
Well advertising for SETI and BOINC.
I fully agree with all others remarks here below who have doubt and very good reasons about doubts.
Keeping it here, as subforum seem me the best. And by the way, it stay between Seti users.
No external unwanted person..
6) Questions and Answers : Web site : Team merge / fusion / absorption ! (Message 1917677)
Posted 8 Feb 2018 by Profile marsinph
Post:
Hi everyone.
I really do not know where to post this message. It is more a BOINC matter instead of SETI.

I see in my country very little team with one or two members. Always founder active.
My questions :
1. Is it possible to merge one team into a other. I repeat, "into", not create a new one by merging ???
2. If yes, how ???
Best regards from Belgium.
7) Message boards : News : Long outage... (Message 1914766)
Posted 24 Jan 2018 by Profile marsinph
Post:
Hello Grant what is the name of 208.68.240.127 ?
I know 119 : boinc2ssl.berkeley.edu (download server)
but not the 127 ! So what is the name ? I will add to my host file)


And now we're starting to pick up work, downloads are stilling.
Tried both 208.68.240.127 and 208.68.240.119 in my hosts file.
No joy.

EDIT- tried 208.68.240.119 again and stalled downloads cleared.
8) Message boards : Number crunching : 100 WU limit for GPUs is too low. (Message 1913768)
Posted 18 Jan 2018 by Profile marsinph
Post:
Hello,
Like I wrote, why not a variable amount of WU based on computer average turnround time.
So to increase cache and also to not overload the system

Basic start : computer run 24/24 and 7/7
For beginner (RAC and/or credit : 0 ) : 50 WU (there are so much WU out in field waiting crunching)

Then
actually 100WU
divide by avg turnaround day
x 10 days work (or depending the settings)
/ 2 to let WU for evryone (unless splitter will never produce enough work for everyone
It will give in this case 500 WU

The same powerfull computer working 12 hours a day will also have a turnaround of 2 days
So it will receive 250 WU

With this easy calculation it not depend the power of computer.
A PC power 10 with avg 1 day will receive the same as a twice powerfull with avg 2 days (perhaps it works 6hr/day)
A PC 1/2 powerfull but avg 0.5 day also the same perhaps oy works 24/24.

With such calculation, everyone have the same cache time depending crunching, depending crunching. How more sent WU, how more cache.

Of course it not need a calculation to ten or twenty decimals. Only two decimal is enough.

For the one with super powerfull calculator, no problem. And if one of it crashes, there will be more results "out of time".
OK. BUT !!! I really think it will be less than thousand of computers with 100CPU and 100GPU, who have never run any tasks !!
For beginners, the turnaround will very fast increase depending crunching.

Advantage of such way of going : reduce amount of WU out in field or waiting validation. ( I have WU waiting calculation since october!!!)
I am sure a lot of you too.
It will also reduce the servers "waiting validation" about 3,000,000 WU !!!
9) Message boards : Number crunching : 100 WU limit for GPUs is too low. (Message 1913756)
Posted 18 Jan 2018 by Profile marsinph
Post:
Hello Gary, also a nice idea about flops, but not forget that some of us let computer run a few hours/day but with very powerfull computer.
Some less powerfull, but 24/24 and 7/7 (my self)
So not easy !






Is there a 'better' database to use than Informix? What does Google use, for example? SQL by MS? And is it practical to switch? Though I have heard of Informix for quite some time, I just Googled it and found that it is an IBM product. I guess I am old, but I thought that IBM had a reputation for doing big iron, and a solid DB? Or has that ossified over the years?

*edit* Just took a closer look at the quick blurb on Google, and this caught my eye: Stable release: 12.10.xC7 / June 15, 2016. I can appreciate having something just work if it ain't broke, but I don't know, it seems to me that over 18 months between stable releases seems like a pretty long time in the compressed IT world we live in now. But then again, what do I know? ;-)

It is the BOINC master database which uses mySQL rather than the science databases that use Informix. The issue is more how SETI@home uses the database.
For all of the tasks assigned to hosts, "results out in the field", the task information is stored in a single table.
So when tasks are assigned, reported, or a host doesn't an update then that table is accessed.
For the hardware running the db the limit of that table turns out to be around 11,000,000 rows. Then it can not longer complete a query fast enough. Which causes the db server to stop and the project to be offline for several hours if not days which recovery is run.

So the solutions are
1) Have more hefty master and replica db servers.
2) Recode how the results are sent to hosts are stored.
3) Limit the number of tasks sent to hosts.

#1 is a stop gap until that hardware hits its limit.
#2 is probably the best solution, but requires dedicated time that isn't available to the project.
#3 easiest to implement and can be adjusted if the db server gets near the limit again.

#3 is the opposite of the thread title. One other thing that can be done is to shorten the amount of time until a report is due. The should shorten the queue of workunits out in the bushes and also let more workunits validate faster. However as Seti allows phones to crunch, I'm not sure how much shorter it can be before many of those low crunch able phones would start missing deadlines. Perhaps some sort of dynamic deadline based on the reported FLOPS?
10) Message boards : Number crunching : Panic Mode On (109) Server Problems? (Message 1913586)
Posted 17 Jan 2018 by Profile marsinph
Post:
I am happy, I got 23 WU on one of my computer. Just enough for four houyrs GPU work

Sorry, Correction, I got 150WU. SETI is back . I hope for a very long time.
Well done Berkely.
11) Message boards : News : Projects are (no longer) down (Message 1913581)
Posted 17 Jan 2018 by Profile marsinph
Post:
Hello, the same in Belgium. Of corse it is not Siberian temperature ....
12) Message boards : Number crunching : I something not understand : db purge not running (Message 1913573)
Posted 17 Jan 2018 by Profile marsinph
Post:
Gents, kind regards from Belgium, but it is not my question !!!
13) Message boards : Number crunching : I something not understand : db purge not running (Message 1913559)
Posted 17 Jan 2018 by Profile marsinph
Post:
The little "Bruno", have now more than 5,000,000 waiting "db purge" and of course it will increase more and more.
Very soon it will be a bottleneck on it ! It status is "not running". Strange, Not the server itself, because other programs seems run normally.
I only try to understand !
I am sure all the team at Berkely try and do the best they can. Since degin december there are more and more problems after weekly outage.

And no any news from the staff. I understand they prefer to solve the problems. But it will be nice if they publish informations. It will reduce the amount of message on the forume from people who not knows what happen.

Regards from Belgium.

To mederator's, not move to "Panic mode". It is quiet different. It is only about and to the staff. Nothig to make with "crunching" or "panic"...
14) Message boards : Number crunching : Panic Mode On (109) Server Problems? (Message 1913520)
Posted 17 Jan 2018 by Profile marsinph
Post:
I just get 36 WU !!!
15) Message boards : Number crunching : 100 WU limit for GPUs is too low. (Message 1913256)
Posted 15 Jan 2018 by Profile marsinph
Post:
As I just learned there is a maximum of 100 WUs per compute device, or device class, and with an average of about 4-5 minutes per WU, that's a maximum of about 8 hours of work I can store, and with the splitters out all the time recently, this really doesn't cut it.

I'm already out of work for two hours with the current outage.

A cache of 100 tasks is only about an 8 hour cache for my dual E5-2670, or R9 390X as well. When we have shorties it is even less.
There are a few options to handle running out of work during an outage.
1) Have a backup project in BOINC.
2) Let your system(s) have a break when they run out of work.
3) Not run the project.




Hall, so if i understand enough, you ask to not more run SETI. OK
I wil do and follow your proposal !!!
Consider my suggestion about increase max alowed WU for veru acive users (like you)
16) Message boards : Number crunching : 100 WU limit for GPUs is too low. (Message 1913219)
Posted 15 Jan 2018 by Profile marsinph
Post:
Since a few weeks/monts, there are server outage. We all know it.
With result that a lot of cruncher are out of work after a few hours or day

We all known that it is a limitation of 100WU/CPU and 100/GPU.
Not depending of 10 days WU and 10 days additionnal WU.
It nothing change. Still 100 CPU and 100 GPU.
I understand the limitation because some users download WU, then nothing more do with results of many WU "out of time".

More and more we have powerfull computers and GPU. For a lot of us, we runs thoses WU in less than 24 hours. In case of outage, we always are out of WU.

Why not increase the limitation based on the RAC or based the turnaround time average (better i think) ???
To be clear : basic (new) user, max WU amount 100. Based on 10 days
Average 1 day : 1000 WU
Or turn around average of 5 days, then 500WU
17) Message boards : News : Splitters off, again :( (Message 1905077)
Posted 6 Dec 2017 by Profile marsinph
Post:
Thanks Eric for update. I am sure you will do it perfect.
18) Message boards : News : We're generating work again. (Message 1904331)
Posted 2 Dec 2017 by Profile marsinph
Post:
Well done. Thanks for information
19) Message boards : Number crunching : Panic Mode On (108) Server Problems? (Message 1903633)
Posted 29 Nov 2017 by Profile marsinph
Post:
Hello Chris, I know ! I am not stupid.
My post is only about the fact that nobody at Berkeley send information.
Sorry for my english. I try to do my best. Without electroncic transaltor. Only from my little knownledge in Shakespeare languague !
Kind regards from Belgium
20) Message boards : Number crunching : Panic Mode On (108) Server Problems? (Message 1903591)
Posted 29 Nov 2017 by Profile marsinph
Post:
No any explanation from Berkeley and staff !
Of course, they can not always publish. But a little word from staff helps !
I also not forget the time difference between Belgium and Berkeley (9 hours)
It will says it is already 10.00AM there.
Soon we perhaps will miss "The" signal we all of us are searching....
Because limitation of 100WU (understandable) i am in a few hours out of WU on all my computers..
And I ask work for 10 + 10 days.

So to conclude : it will be nice if staff post situation report.
Of course no reaction are needed on my post
Best regards from Belgium.


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SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.