Posts by Bob Bainbridge

1) Message boards : Number crunching : Where's my team? (Message 1904560)
Posted 3 Dec 2017 by Profile Bob Bainbridge
Post:
OK thanks. I'm not sure what I was looking at. Confusing RAC with TOTAL or something like that. Old age is starting to take its toll, I guess!
Bob B.
2) Message boards : Number crunching : Where's my team? (Message 1904320)
Posted 2 Dec 2017 by Profile Bob Bainbridge
Post:
Why can't I find my name or my team listed in the statistics? My total of 102 million and a team total of 162 million should be in the top 100 I would think.
Bob B.
3) Message boards : Number crunching : Errors while Downloading (Message 1828435)
Posted 5 Nov 2016 by Profile Bob Bainbridge
Post:
You're right. I turned AVG off and the errors stopped. The latest AVG is called AVG/ZEN and doesn't appear to have the ADVANCED OPTION selection with EXCEPTIONS under it. For the time being I uninstalled AVG and turned on Windows Defender. I'm running Windows 10 64-bit on the failing computer. My Lenovo laptop is running Windows 10 32-bit with no errors but apparently has an older version of AVG FREE and not ZEN. 2 other computers with no errors are running AVG-ZEN but have Windows 7 64-bit running. Possibly it's the combination of Windows 10 and AVG-ZEN causing a problem?

Bob B.
4) Message boards : Number crunching : Errors while Downloading (Message 1827647)
Posted 31 Oct 2016 by Profile Bob Bainbridge
Post:
I'll try swapping router ports. All 4 computers are running the same AVG Free antivirus. I did find that AVG had it configured as a laptop instead of desktop. I corrected that. The hard drive does have some reallocated sectors but no pending errors. Here is one of the download errors copied from the BOINC log.

10/30/2016 10:16:19 PM | SETI@home | Started download of 11au09ac.16399.18477.14.41.160
10/30/2016 10:16:19 PM | SETI@home | [error] MD5 check failed for 11se09ac.25468.6202.3.30.251
10/30/2016 10:16:19 PM | SETI@home | [error] expected 688d7062edf12135424308684a05977d, got 9c58f753853c5008b5adc7555b4a3af3
10/30/2016 10:16:19 PM | SETI@home | [error] Checksum or signature error for 11se09ac.25468.6202.3.30.251
10/30/2016 10:16:23 PM | SETI@home | Finished download of 11se09ac.25468.6202.3.30.225

Bob B.
5) Message boards : Number crunching : Errors while Downloading (Message 1827456)
Posted 30 Oct 2016 by Profile Bob Bainbridge
Post:
I'm getting the above erron on only 1 of 4 computers. Today it showed 179 errors.
The log shows:

<core_client_version>7.6.22</core_client_version>
<![CDATA[
<message>
WU download error: couldn't get input files:
<file_xfer_error>
<file_name>03ja09aa.1227.6207.12.39.111</file_name>
<error_code>-119 (md5 checksum failed for file)</error_code>
<error_message>MD5 check failed</error_message>
</file_xfer_error>

</message>
]]>

What could cause this? The affected computer is hard-wired into the router, which is attached to a 6mb DSL modem.

Bob B.
6) Message boards : Number crunching : Einstein@Home Locks PC (Message 1605133)
Posted 25 Nov 2014 by Profile Bob Bainbridge
Post:


I'm running 3 tasks on a GTX 770 with 2gb ram, same as I run under Seti. I gave up all overclocking and all 6 cores of the 970 are running around 70C at 100% load with a water cooler. I have 4gb ram which is the max for 32bit Win7 OS.

Bob B.

Running 3 Einstein tasks on that GPU and only using a 32-bit OS with your limited system memory likely is a bad combination and a possible cause of your problem, turn the GPU down to 2 tasks and reserve at least 1 CPU core if you already havn't (two maybe needed though).

Why didn't you go with a 64-bit OS and at least twice the memory?

Cheers.


hmm, yes, this mix of 32 Bit Windows, and this Hardware is problematic for a host of accumulated reasons. These point toward the described problems/symptoms, before necessarily considering specific application(s).

Some bullet points (probably not comprehensive)
- Windoiws Vista/7 onwards moved to the WDDM ( Windows Display Driver Model) that 'virtualises' video memory.
- the described system will not be able to utilise the full 4GiB host RAM, and 2GiB VRAM, since the 32 bit address space won't address that much combined (physically) [ note no physical address extension here... ]
- something (probably both host memory and the GPU VRAM) will be being substantially capped.
- The Kernel portion will be reserving around half of whatever's left, including for various driver crash recovery & caching purposes.
- When whatever VRAM is actually allowed becomes close to filled, this will rely on the virtual memory and page to disk
- This in turn will induce delays prone to expose system resources limits/timeouts and produce various kinds of failures.

All that considered, I would venture to guess that even running 2 instances of a demanding application may become unreliable. Most likely just switching to a 64 Bit version of Windows would resolve the problem. Even still, 2GiB VRAM is a lot to mirror (As WDDM does) with only ~2GiB kernel space (leaving 2GiB for user applications, minus overheads).

Most likely, IMO, these mounting limitations go a long way toward the GPU Vendors' gradual moves toward mostly 64 bit support for the newer cards. There just simply aren't enough system resources available under 32 bit to support all the extra Driver+OS heavy lifting in the background.

That's probably the source of the problem. I'm running Einstein & Seti on a 64bit AMD 4-core Win 8.1 machine with 8gb ram and on a 64bit AMD 2-core with only 2 gb ram with no problem. The 32bit Intel 6-core is my main computer and has been upgraded without doing a clean install since Win 2000, to retain the desktop and programs. I still run many older programs that won't run under 64 bit. Some are actually old Dos programs. Does PC-File and Wordperfect 6.0 for Dos ring a bell? I'll just omit the Einstein project on this machine for the time being. Curiously this machine is not getting ANY WU's during the shortage but the AMD 2-core with GTX-660 and a Thinkpad with no GPU are still getting some. Thanks for the info.

Bob B.
7) Message boards : Number crunching : Einstein@Home Locks PC (Message 1604716)
Posted 24 Nov 2014 by Profile Bob Bainbridge
Post:
How many tasks at a time on your GPU? FWIW, each GPU task requires 300-350mb of GPU RAM. So for example, if you have 1gb of GPU RAM, You should limit it to just 2 or maybe 3 tasks at a time on your GPU.

Aside from that, The things I would look into:

1) Perhaps Einstein runs your CPU hotter, and your cooling is not up to the task. Or your thermal connection to the heatsink is poor.

2) Perhaps Einstein uses more RAM, and one of your DIMMs is marginal. With the extra usage, it is exposing the issue.


I'm running 3 tasks on a GTX 770 with 2gb ram, same as I run under Seti. I gave up all overclocking and all 6 cores of the 970 are running around 70C at 100% load with a water cooler. I have 4gb ram which is the max for 32bit Win7 OS.

Bob B.
8) Message boards : Number crunching : Einstein@Home Locks PC (Message 1604715)
Posted 24 Nov 2014 by Profile Bob Bainbridge
Post:
So why haven't you asked at the Einstein forums? Since it's their applications that run and give you so much trouble, wouldn't their forums be the first place to ask for help on this, instead of the Seti forums?

Good Point. Probably because I haven't been very active with the Einstein project and have never visited their forums.

Bob B.
9) Message boards : Number crunching : Einstein@Home Locks PC (Message 1604376)
Posted 23 Nov 2014 by Profile Bob Bainbridge
Post:
I decided to start crunching Einstein@Home WU's again during this draught of Seti WU's. I have no problem on 3 machines but my Intel 970 machine running Win 7 Ultimate keeps hanging. The clock and mouse freeze and I have to do a Hardware Reset. With Hyperthreading I'm running 12 cpu's and a NVDIA GTX 770 GPU. I tried reinstalling BOINC and restarting the project with no change.

Bob B.
10) Message boards : Number crunching : Computation Error (Message 1512670)
Posted 6 May 2014 by Profile Bob Bainbridge
Post:
Thanks to everyone that replied. I had a power supply that blew up which started this problem. I replaced the supply today and sill got the error but I booted Win 8.1, which kept powering down with a temporary supply I had installed. It's running Seti with no problem. If I decide to boot the Win 7 partition I'll probably do a partition restore from a previous backup before starting BOINC again.
Thanx,

Bob B.
11) Message boards : Number crunching : Computation Error (Message 1511500)
Posted 2 May 2014 by Profile Bob Bainbridge
Post:
Thanks for the reply. I did do a Repair of BOINC followed by a removal and reinstall and a reinstall of Lunatics bit that didn't help. I'll keep working on it.

Bob B.
12) Message boards : Number crunching : Computation Error (Message 1511078)
Posted 2 May 2014 by Profile Bob Bainbridge
Post:
My AMD 955 (4-core with GTX-570 GPU) blew a power supply while running Windows 8.1. I attempted to get it running with an old spare supply but lost all the WU's and then it started powering off. I rebooted it with Windows 7 which had a different set of WU's in process which were also all lost. I reinstalled BOINC 7.2.42 and Lunatics 0.41. Now the instant a WU completes the download it immediately says COMPUTATION ERROR. The only ones I've seen show as GPU tasks but I'm not sure if that is accurate. I don't have a clue what is happening and hope someone can help. I had modified the XML file to run 3 GPU tasks at once but tried restoring the original with no change.

Bob B.
13) Message boards : Number crunching : Merging Computers (Message 1489039)
Posted 14 Mar 2014 by Profile Bob Bainbridge
Post:
Actually what happened was I was running Win7-SP1 and while searching for a download torrent for a TV program my wife missed, my computer got bombarded with Trojan downloads etc. and 25gb free space was completely filled. After deleting all the rogue software installed by these web sites I still had little free space. I then copied the entire BOINC directories to a save drive and did a partition restore from last December which apparently did NOT have SP1. I copied the BOINC directories back and then reinstalled SP1. Apparently BOINC contacted the server before SP1 was installed and created another entry for the same computer. The computer name was the same for both entries but they won't merge. I hope this isn't too confusing. Thanx,

Bob B.
14) Message boards : Number crunching : Merging Computers (Message 1488705)
Posted 14 Mar 2014 by Profile Bob Bainbridge
Post:
BOINC created 2 separate records for one of my 4 computers. One is for windows 7 without Service Pak 1 and the other record is for the same computer with SP-1. When I try to merge them it says they are incompatible.

Bob B.
15) Message boards : Number crunching : No Work (Message 1424763)
Posted 6 Oct 2013 by Profile Bob Bainbridge
Post:
I did reset the project a couple times with no change. After the 6th reinstall the messages about missing files finally disappeared and it downloaded 38 tasks. Perhaps things will return to normal.

Instead of uninstall/reinstall, did you try the repair option? Don't uninstall, just run the installer. When the installer sees that you are trying to install the same version over the top, it will offer a repair option. It is necessary when reverting to an earlier version, but might work on problems like this.


Yes, I did the REPAIR option a few times with no change. I still get a notice about 2 missing V6 files when my GTX-670 machine starts up but it's not getting any errors.

Bob B.
16) Message boards : Number crunching : No Work (Message 1419838)
Posted 24 Sep 2013 by Profile Bob Bainbridge
Post:
I uninstalled/reinstalled 7.0.64 and Lunatics 0.41 several times

This doesn't do anything of worth, you know?
Uninstalling BOINC will just remove the BOINC worker applications from the C:\Program Files\BOINC\ directory. It won't reset anything project specific, or else you would never be able to update BOINC with work in cache... and you can.

So all Reinstalling does is add those BOINC worker applications again to the C:\Program Files\BOINC\ directory. It also does nothing to reset the project or the contents of the data directory.

Uninstalling and reinstalling Lunatics does change for a moment what science applications will be used, but if you aren't running BOINC at any moment between uninstalling Lunatics and reinstalling it, it doesn't change anything either. Aside from that, the work caching and scheduling capability is something that BOINC does, not the science application, not even when they're third party. So uninstalling and reinstalling Lunatics is a complete waste of time.

So then, what does matter?
1. Always check the messages that BOINC gives as to why you don't get work.
2. Always check your account->Computers on this account->Details of the computer that has the trouble->Application details to see if there are any problems there.
3. If you can't make heads or tails of it, post about it on the forums.

Now, optionally:
4. You could try to reset the project. Although in the case of a 'you have too many errors and a quota of 1', this doesn't matter. The quota is enforced on the server, not locally.
5. You can try (backing up and) removing your Data directory. But before you do so, always better ask on the forums if this matters. In this case, I don't think so. As BOINC will just make the hostID again and after contact with the server, you'll still be on a quota of 1.

And for those who really don't want to do any of the above:
6. Just give up in disgust and wait it out for a week, do not touch the system in that time, or look at it. BOINC will always recover on its own.


I did reset the project a couple times with no change. After the 6th reinstall the messages about missing files finally disappeared and it downloaded 38 tasks. Perhaps things will return to normal.

Bob B.
17) Message boards : Number crunching : No Work (Message 1419836)
Posted 24 Sep 2013 by Profile Bob Bainbridge
Post:
Interesting - that computer (5203915) has now made contact and you have 38 tasks without the daily limit increasing. You must be on someone's good side.

Number of tasks completed 647
Max tasks per day 2
Number of tasks today 38
Consecutive valid tasks 1
Average processing rate 11.38523663292
Average turnaround time 28.86 days


Yes, I noticed that although the Valid Tasks is still one but that may take awhile until they're validated. I reinstalled BOINC a half dozen times and finally the messages about missing files disappeared (I don't know why).

Bob B.
18) Message boards : Number crunching : No Work (Message 1419506)
Posted 24 Sep 2013 by Profile Bob Bainbridge
Post:
After uninstall/reinstalling BOINC, you lost all custom settings, so make sure your settings for minimum work buffer are okay and the max additional work buffer is very small, like .01. Since network activity is infrequent, check that preference setting also.

Why do you recommend additional work buffer being so small? I usually specify 10 days going back to the old days when sometimes no WU's would be available for a week or longer.


And that worked well prior to BOINC v7. With v7, the definitions are different and the first number (minimum work buffer) is the one you want to set high to hedge against work shortages. The second number (max additional) influences how often it asks for work. That's supposed to be after you reach the minimum work buffer, but it doesn't always work that way. A large number there with BOINC v7 could be why this computer isn't bugging the server for work - now more than 24 hours since last contact. Just trying to get you those 2 tasks / per day since every validation will increase that temporary limit. The value of .01 is pretty widely used by forum members for their more active crunchers - a higher value might be okay for a notepad but don't use more than a day.

OK, thanks. I'll give that a try and see if anything changes.

Bob B.
19) Message boards : Number crunching : No Work (Message 1419149)
Posted 23 Sep 2013 by Profile Bob Bainbridge
Post:
After uninstall/reinstalling BOINC, you lost all custom settings, so make sure your settings for minimum work buffer are okay and the max additional work buffer is very small, like .01. Since network activity is infrequent, check that preference setting also.

Why do you recommend additional work buffer being so small? I usually specify 10 days going back to the old days when sometimes no WU's would be available for a week or longer.

Bob B.
20) Message boards : Number crunching : No Work (Message 1419147)
Posted 23 Sep 2013 by Profile Bob Bainbridge
Post:
You have two computers showing errors. Comp 5203915 has 15 the last 4 from 18n sept. Comp 7050508 show 49 errors. last 13 from 22sept.

I have no idea what could be wrong.


The one with 49 errors is showing V7 tasks exceeding max allowed time. They are all CUDA errors and I suspect may be due to the very slow/old GPU card.

Thanx, Bob B.


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