Posts by Fred J. Verster


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1) Questions and Answers : Windows : SETI@Home don't want to stop computing (Message 1565133)
Posted 1 day ago by Profile Fred J. Verster
How much DRAM has your Multicore LapTop?

How is your cooling?

My I7-2600 [DeskTop/SelfMade], has 16GByte 1600MHz.DDR3 DRAM.
2x HD5870 GPU 's [The CPU has HT=ON]
When runnin S@H WU's (7.00/7.03), AstroPulse on CPU, it's memory use is
very low, so B.O.I.N.C. gets 6500MByte, dodn't know if GraphicsMemoryGDDR5,
is included in this readout from TaskManager.
[PSU=1000Watt; 4x +12V 20A; 2x +12V 28A; 2x +5V each 15A; 3.3V 12A.]
COOLERMASTER Case(old type; PSU on-top; GPU cards/slots bottum.

CPU gets 102C , when using 100% setting as CPU use.
GPU's get at 58C (Lowest) and 63C (PCI-e x16[2.0] slot.
2) Questions and Answers : Windows : Just back to SETI ... (Message 1565122)
Posted 1 day ago by Profile Fred J. Verster
I started again one week ago, after 18 month's of absence. By the way
You can 'merge accounts'. PC., too, as I did this only computer.
[url=http://setiathome.berkeley.edu/hosts_user.php]This one.[\url]

It also runs in a 'virtual box '. Very little experience with virtualizing but
it defenetly has some serious funktion taking care off the need, updating your
"What-ever" software to yet another O.S.&(environment).
3) Message boards : Number crunching : blanked AP tasks (Message 1563512)
Posted 4 days ago by Profile Fred J. Verster
I still run BOINC 7.2.42 (64BIT) in a VM.
1 AP is stuck at 79.801% after 34:09 h.
What's best todo ? Just wait or delete it?

Also planning to run optimized?
4) Questions and Answers : Windows : SETI@Home Bluescreen Crash (Message 1561023)
Posted 9 days ago by Profile Fred J. Verster
I started yesterday, since 18 months off absense and installed the latest BOINC
64Bit on WIN 7, 64Bit.
PC: I7-2600 (HT=ON)16GB DDR 3 1600MHz. DRAM and 2x HD5870 GPU's.
PSU= 1000Watt.
I'd set the CPU to a higher TURBO Freq. 3.9 i.s.o/ 3.8GHz. and also aupped some
offset CPU voltages. This inmediatly cased not only overheat problems but real
instabillity! And lock-ups, BLUE-SCREENS and crashes.
Loading the B.I.O.S. settings for this particular CPU, caused the system to respond normally. CPU, with sock-cooling,[HT=ON] caused inmediat overheating problems, choosing 70% CPU load and a auxilliary fan took care offt that.
By the way, CoreTemp and INTEL DeskTopUtillities reported 101C for all 4 CPU's
[HT=ON], but the temp switched as fast as the core-load and caused no added
instabillity

The HD 5870 GPU's are running at ~75% off their crunching capacity did run smooth, the whole system uses 500Watt/hour and is very stable also use it for
browsing and forum posts, e-mail and other minor tasks, causing no problems
with BOINC running 'all the time' setting. I use 1 monitor on each GPU and enough 'head-room' is available the use these quite normally, although no smooth
graphics-display f.i web-cam or videos.

It took less then 8 hours to get me to post on these forums, enough work was done and validated.
5) Message boards : Number crunching : Question about GPU usage and optimized apps (Message 1560663)
Posted 9 days ago by Profile Fred J. Verster
Nice to see both S@H and AstroPulse science-app's in BOINC manager behave
beautiful without any tuning.
Both HD5870 GPU's run at 75% off their maximum capacity.
The CPU, I7-2600 with stock cooler get too hot with HT on, so a setting off
70% and an auxillairy fan, is necessary.
Tipp off the hat for implementing the OpenCL app's in BOINC manager!
And ofcoarse the testing, tuning and getting the OpenCL app's to work in BOINC.

And no problem to use the computer for 'other' purposes as well.
6) Message boards : Number crunching : Question about GPU usage and optimized apps (Message 1560593)
Posted 9 days ago by Profile Fred J. Verster
I just started, with a fresh new BOINC manager, not yet in a virtual machine,
and both 5870 GPU work fine. The I7-2600 runs at 60-70% otherwise it gets too
hot.
And finished enough work to let me post on the forum pages.
Nice to be back ;^).
7) Message boards : Number crunching : Seti credit vs Einstein Credit (Message 1329252)
Posted 589 days ago by Profile Fred J. Verster
I would say Einstein offers SLIGHTLY more credits than SETI. Not massively more.

If you just want big numbers to impress your friends with (and if so seriously reconsider your social circle) then try collatz. Honestly I feel I shed 50 IQ points while I crunched it. But my RAC was HUGE.

Ou go to GPUGRID, they "pay" 115k for a single WU! Almos 10x the SETI amount!


But at GPUGrid, it heavily depends on the GPU you use, a FERMI or KEPPLER gives
far more credit, compaired to the 8000/900 & 200 NVidia series.

And for Collatz C. similar, Single Precision AMD/ATI GPUs do very well, especially 5770; 5870 (D.P.).
8) Message boards : Number crunching : Multiple seti issues since updating BOINC Mgr (Message 1326644)
Posted 598 days ago by Profile Fred J. Verster
Anyone wondering, FarmerDon posts with one account, but runs work with another. His computer and tasks are here.

I don't know why the OpenCL app keeps restarting, but apparently it doesn't harm either as the tasks end normally and are validated OK. I just wonder about the credit you managed to get, 701.90 for one AP? Must've been a very special one... ;-)


AstroPulse v6.
ATI host,
in case first link isn't reachable?!

IIRC, this is/was the credit-rate for an AstroPulse WU, with 'normal' output,
i.e. no Infomation Overflow and blanking whithin 2.5%-50%.
\Which has little influence in Credit, but affects CPU-time, higher blanking =
higher CPU-time.

I see 1 host in FarmerDon's account, the setting: Use GPU when idle 10 minutes, can result in lots of shutdowns and restarts.
Just like the :
Stop Computing when non-BOINC load exceeds xx%
, setting.
9) Message boards : Number crunching : Changing GPU - But which will be better? (Message 1326407)
Posted 598 days ago by Profile Fred J. Verster
I like to make some comments.
The 6xx series has a lot more cudas, but more isn't always better.
6xx series is more power efficient,that's a good thing.
But the cuda cores are a lot lot less powerful.

As you can see some 5xx cards outperform the 6xx series.
But I expect there will be some gain in optimizing for the 6xx series


Hasn't that something todo with the Reg_Size, being twice as big in
the 600 series (KEPLER), as the FERMIs with 32K regsize.
Setiathome_CUDA: Found 1 CUDA device(s): Device 1: GeForce GTX 480, 1535 MiB, regsPerBlock 32768 computeCap 2.0, multiProcs 15 clockRate = 1401000


AstroPulse
Two GPU results, 1 rev.1363 (LUNATICs Optimized), 1 stock app. and CPU.

I'm mistaken, wanted to compaire 400 (FERMI) and 600 (KEPLER) and CPU, but
it's a GTX 550 Ti.
And a result overflow :-/.


10) Message boards : Number crunching : Slow WU download speed (Message 1326218)
Posted 599 days ago by Profile Fred J. Verster
I've noticed the prolonged downloads too, but noticed today that it's improved significantly. It's been a few months since I payed much attention to what the clients are doing, so not sure how unusual the slower DL's on my end has been.


Unfortunatly true, crunching is done faster then down- and uploading them .
11) Message boards : Number crunching : Discussion of Invalid Host Messaging (Message 1326061)
Posted 599 days ago by Profile Fred J. Verster
*** I suppose I could just change the Unroll to 2 and see what happens ***

I've completed 6 APs in a row with the Unroll setting at 2. If I would have done that back here ^Something isn't right^ around 5 of those 6 would have ended in a "Computation error".
Here are the first 3 of the 6;
Task 2784334429
Task 2784338147
Task 2784338745

I'm ready to declare Victory.


You could adjust the Fetch and Thread_Block, see that you use 1:3 and
Fetch_Block 2048 and Thread_Block 6144, have you tried other values, f.i. Tread_Block 10240 and Fetch_Block 5120 or 8192 and 4096: (1:2).
Running on device number: 0 DATA_CHUNK_UNROLL at default:2 DATA_CHUNK_UNROLL set to:2 FFA thread block override value:6144 FFA thread fetchblock override value:2048


With UNROLL=2, Tread and Fetch_Block can be bigger!
Which one is the most effective also depends which GPU you're using.
See that you use an 9800GT and a BARTS GPU. Quite different architecture and
thus Regsize.
12) Message boards : Number crunching : Wind tunnel cpu set up (Message 1326051)
Posted 599 days ago by Profile Fred J. Verster
Had this show up on my timeline this morning and thought it was rather "cool". No pun intended. I swear!

Wind Tunnel CPU


This certainly quite another approch to cooling a computer!
I very much like the idea! (Although Water-Cooling may be simpeler
and just as effective).


13) Message boards : Number crunching : Discussion of Invalid Host Messaging (Message 1324587)
Posted 604 days ago by Profile Fred J. Verster
I thought the server was supposed to throttle a client with too many errors, is that not true?

It is true, but effective only when nothing but errors are returned for an extended time. There are delays caused by pending tasks from before the problem, and each error only reduces quota by one. For "SETI@home Enhanced 6.10 windows_intelx86 (cuda_fermi)", Thndr's host is down to "Max tasks per day 2" but for GPUs that is multiplied by a project setting which is probably still 8 here. So for that application version it's down to 16 per day, and that's enough less than the limit of 100 in progress to minimize the damage.
Joe


Its still seems odd that there are users with a thousand inconclusives.

As an example, I've got an inconclusive with this user, who has no tasks in progress, but the application details show he can take 100 WU? http://setiathome.berkeley.edu/show_host_detail.php?hostid=6726942

I don't mean to imply any ill will towards anyone working on sorting out their gpu problem. Maybe the project should throttle the GPUs faster and automatically notify you if you get a lot of errors.



11/14/2012 5:28:45 PM | | suspend work if non-BOINC CPU load exceeds 25 %.



This setting can produce errors, it stops and starts the app..
Better to set it to 0 (zero) and use the (CPU) and GPU setting: run when computer is idle, IMHO

The same applies to the default settings of the AstroPulse stock app.
DATA_CHUNK_UNROLL at default:2 DATA_CHUNK_UNROLL at default:2


Depending of the GPU used, these values should be adjusted accordingly.
F.i. start with UNROLL=8, UNROLL=16 is usually the limit.
Info: BOINC provided device ID used Used GPU device parameters are: Number of compute units: 4 Single buffer allocation size: 256MB max WG size: 1024 FERMI path used: yes

UNROLL=4 should work better, IMHO.
(If it's still possible to change these values?!).
14) Message boards : Number crunching : Merry Christmas (Message 1319869)
Posted 614 days ago by Profile Fred J. Verster
Merry Christmas and a happy

new crunching Year !

15) Message boards : Number crunching : Unexected Logout (Message 1319118)
Posted 617 days ago by Profile Fred J. Verster
Just after one of the recent Windoze updates I found I had been logged out of all sorts of things, including both S@H and S@H-Beta, really frustrating as trying to remember all the various uids, passwords, funny phrases and so on was really frustrating.


Been happening to me for several months. As a test, I disabled Win updates on wife's machine & left mine enabled yet hers remained unaffected.

Dec's patch Tuesday knocked mine out again. Enabled updates on wife's & bingo, had to re log in to many sites from hers.

Thanks M$.


I always have to log in, but only have to enter the first caracter of my
Log-In name. (IIRC you can set this in your browser, remember name
and pw).

Long before the latest security-updates on WIN XP, also WIN 7. (22-12-12).
(And the Cookie-warning).





16) Message boards : Number crunching : Balance CPU and GPUs (Message 1318504)
Posted 618 days ago by Profile Fred J. Verster
You definetly need to free more CPU cores running 4 GPUs with multiple instances.


Very true, also needed with AMD/ATI GPUs, doesn't matter if Cross-Fire
is enabled.
Every GPU has 1 thread of an i7-2600, also running on higher frequncy
by increasing the Base-Clock from 100 to 102 to 104MHz. Since the multiplier is locked, it's the only option and works OK.

But I do have several driver-crashes, specially with SETI work?!

NVidia GPUs also need sometimes a dedicated core, CPU time is higher on NVidia
GPUs.
Almost double compaired to AMD/ATI GPUs.

I've set SETI the same way, 0.5CPU in stead of 0.04 so it uses 1 core/thread
setting this in app_info.xml when doing 2 pper GPU 1 core/thread will
be used, Einstein uses this setting too.

This AMD/ATI host does Docking or Einsteins Gravity Wave search on CPU.
SETI and Einstein only GPU.





1,216.96 runtime

233.94 CPU time

118.06 Credit

SETI@home Enhanced v6.10 (cuda_fermi)



2763176272

6628794

21 Dec 2012 | 17:29:59 UTC

21 Dec 2012 | 21:41:34 UTC

Voltooid en gecontroleerd

1,570.51 runtime

102.46 CPU time. Less as NVidia GPUs.

118.06 Credit.



SETI@home Enhanced
Anoniem platform (ATI GPU)
Both platforms run 2 tasks per GPU.
17) Message boards : Number crunching : SETI/BOINC Milestones [ v2.0 ] - XXV [ CLOSED ] (Message 1318494)
Posted 618 days ago by Profile Fred J. Verster
Well reached over 30 Million, could be more and I keep on CRUNCHING

Last month I got only got Docking or Einsteins Gravity Search, on CPU.
And Binairy Pulsar Search (BRP4CUDA/OpenCL) on 2 NVidia and 2 AMD/ATI 5870GPUs

And since a few hours I gor a lot of SETI work. On all 3 hosts and a Laptop.

A efficient way of crunching, 3 hosts using ~1000 Watt/hour when looking at
the total troughput. > 170 Million credit and 162.000 RAC, for all projects.

And they're running 24/7, ofcoarse, since my electric bill is included in
the rent of this appartment.

In February, i've to do some serious renovating and have to quit for 10 days
or less. :-/
18) Message boards : Number crunching : Balance CPU and GPUs (Message 1318491)
Posted 618 days ago by Profile Fred J. Verster
You definetly need to free more CPU cores running 4 GPUs with multiple instances.


Very true, also needed with AMD/ATI GPUs, doesn't matter if Cross-Fire
is enabled.
Every GPU has 1 thread of an i7-2600, also running on higher frequncy
by increasing the Base-Clock from 100 to 102 to 104MHz. Since the multiplier is locked, it's the only option and works OK.

But I do have several driver-crashes, specially with SETI work?!

NVidia GPUs also need sometimes a dedicated core, CPU time is higher on NVidia
GPUs.
Almost double compaired to AMD/ATI GPUs.

I've set SETI the same way, 0.5CPU in stead of 0.04 so it uses 1 core/thread
setting this in app_info.xml when doing 2 pper GPU 1 core/thread will
be used, Einstein uses this setting too.

This AMD/ATI host does Docking or Einsteins Gravity Wave search on CPU.
SETI and Einstein only GPU.

19) Message boards : Number crunching : Panic Mode On (79) Server Problems? (Message 1318297)
Posted 618 days ago by Profile Fred J. Verster
Having finally received work for main crunching PC
the other day , today I have project down messages...

I lost a few returns last time , hope this is not a major problem again !!
I hate to lose credit because of failure to report :/

Thumbs up for the holiday work , but it has not fixed the problem it seems.
( we do not have that holiday here in the U.K. )

I have NO cuda work again and the cpu work is running out too. :-(

Chris.



Yep, a month later, a lot of work all of a sudden...;-)
(Forgot to post it immediatly).
20) Message boards : News : SETI@home scheduler is down until further notice. (Message 1311809)
Posted 633 days ago by Profile Fred J. Verster
I now have errors in my results, all of which are down to two periods of server downtime.

Because these appear as errors, I take it that my machine has been plodding away for no good reason.


Well, SETI BĂȘta is up and running,
. UTC= 17:04

Haven't seen much (no) work in the last week, so no errors ;-)

Well you could make a SETI BĂȘta account, unless you have one already, Less ??1
They're always 'short on testing', too.




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