Posts by MarkJ

1) Message boards : Number crunching : BOINC 7.8.3 available to beta test on debian (Message 1895389)
Posted 4 days ago by Profile MarkJProject Donor
Post:
Thanks to Gianfranco BOINC 7.8.3 has hit Stretch-backports. Here is the change log from the BOINC message boards (thanks Jord),

Preliminary Change Log 7.8.2 -> 7.8.3
- client: extensions, fixes to account manager functionality
- client: eliminate possible buffer overflow in reporting result errors
- lib: fix boinc_file_exists() on Windows
- Mac: Changes to Xcode project to support screensaver changes for Mac OS 10.13.
- Screensaver: Changes for screensaver to support Mac OS 10.13
- api: BOINC graphics library changes to support Mac OS 10.13
- client library: inconsistent terminology for intel_gpu
- update project list
- Locale: Update french localization files
- update installshield files

For those running Ubuntu Gianfranco has a ppa you can get it from.

It does not fix the tasks tab/transfers tab from jumping to the bottom or the event log date format issues.

Note Debian did a 9.2 point release on the 7th of October that included a buggy Nvidia driver. It goes into idle mode after 15 minutes of compute tasks so you might want to skip the upgrade of Nvidia-kernel-dkms.
2) Message boards : Number crunching : Setting up a Linux machine to crunch CUDA80 for Windows users (Message 1894048)
Posted 11 days ago by Profile MarkJProject Donor
Post:
Thanks for the head's up, Mark. Perfectly happy with the 375.66 drivers.

I was too. Now I have to work out how to get them back.

It seems after a reboot its goes in P2 state and stays that way for about 15 minutes then drops into P8 (idle mode) and one has to reboot the machine to get it going again. I will raise a Debian bug for it but I'm sure its Nvidia's code.
3) Message boards : Number crunching : Setting up a Linux machine to crunch CUDA80 for Windows users (Message 1894042)
Posted 11 days ago by Profile MarkJProject Donor
Post:
Word of warning for those of you running Debian. They did a point release to Stretch (9.2) yesterday which includes Nvidia drivers 375.82. The driver gets stuck in P8 mode when running compute tasks so they take forever to complete.
4) Message boards : Number crunching : Anyone still using a raspberry pi 3 (Message 1893687)
Posted 12 days ago by Profile MarkJProject Donor
Post:
Is it worth running seti on the pis?
$50 each and producing 300 results each, 6000 results costs you 20*50 = $1k

If you want to use them as crunchers you’ll need to add a heatsink to the SoC and a fan for air flow, and then there is a power supply.

You can have one larger fan cool a stack of them. Some of the multi-port USB chargers can be used to run 4 or more Pi’s off a single power point. The SD cards and fans wear out too so you’ll need to replace them over time, assume 1 to 2 years out of the SD card. There are some people running them off solar/battery but that adds quite a bit to the initial cost.

See Mod my Pi case for what I did to mine.
5) Message boards : Number crunching : Panic Mode On (107) Server Problems? (Message 1893148)
Posted 15 days ago by Profile MarkJProject Donor
Post:
No, the disk is fine. Only using 6.5GB out of 215GB. It seems to clear itself up after a few BOINC restarts with the no state file found for task so and so.

Is this the BOINC 7.8.2 machine(s)? If so might be the slot directories issue
6) Message boards : Number crunching : Dual E5-2670 vs. Threadripper 16 core ?? (Message 1892910)
Posted 17 days ago by Profile MarkJProject Donor
Post:
It was being caused by BOINC. I changed the checkpoint timer to 120 and the disk has quieted down..

On Raspberry Pi’s I have it set to 300 seconds to reduce the writes to the SD card. On my Ryzen’s I have 2TB HDD in them with it set to 120 seconds and a start delay of 2 for BOINC (so the machine can get past the initial start before trying to run 16+ tasks). You specify the start delay in cc_config.
7) Message boards : Number crunching : Linux & multiple GPU's - Numbercrunching very lov comparred to other projects (Message 1892345)
Posted 20 days ago by Profile MarkJProject Donor
Post:
You didn’t say what app you are running. I would guess it’s the project supplied ones. If so you might want to run the cuda80 one, but you would need an up to date Nvidia driver installed (to get CUDA 8 support). There is a rather long thread about running it here
8) Message boards : Number crunching : Anyone still using a raspberry pi 3 (Message 1890915)
Posted 29 days ago by Profile MarkJProject Donor
Post:
Do you have a GPU hooked up to your raspberry pi's ??

There isn't any add on GPU's for the Pi that I am aware of. It has a built-in VideoCore IV but its of no use for number crunching.
9) Message boards : Number crunching : Anyone still using a raspberry pi 3 (Message 1890120)
Posted 16 Sep 2017 by Profile MarkJProject Donor
Post:
Seeing if anyone is still running the raspberry pi 3?

Yes ten of them, but over on Einstein where the work units are smaller. While it certainly can do Seti work they take a lot longer to compute.
10) Message boards : Number crunching : BOINC 7.8.3 available to beta test on debian (Message 1889497)
Posted 13 Sep 2017 by Profile MarkJProject Donor
Post:
Thanks, looks like I need to move up to 7.8.2. This is my output:
keith@Darksider:~$ uname -a
Linux Darksider 4.10.0-33-generic #37~16.04.1-Ubuntu SMP Fri Aug 11 14:07:24 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
keith@Darksider:~$

I don't see my status radio buttons ever update the change after making one. Might it be a problem with video driver or Desktop UI?

I am running the repository video driver 375.66 and the standard Ubuntu desktop.

According to that you're running Ubuntu 16.04.1. Its not the same as Debian but its based upon it. Gianfranco has a ppa with 7.8.2 in it for Ubuntu:
https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/boinc

I have the 375.66 driver as well so I don't think it is causing your problem.
11) Message boards : Number crunching : BOINC 7.8.3 available to beta test on debian (Message 1889216)
Posted 11 Sep 2017 by Profile MarkJProject Donor
Post:
I'll have to search on just what stretch means. I have no clue. I am a newcomer to linux.

Stretch is the current version of Debian (also known as Debian 9). To find out what version you are using in a terminal window type "uname -a" (without the quotes) and it should say what kernel and OS version it is.

Update: I have just played around with the network activity and it seems to behave. Suspend Network works correctly and making it always available also seems to work, The Activity Menu in Advanced mode shows the radio buttons correctly.
12) Message boards : Number crunching : BOINC 7.8.3 available to beta test on debian (Message 1889188)
Posted 11 Sep 2017 by Profile MarkJProject Donor
Post:
I visited the link you provided. It is not obvious to me where the download link is for this new 7.82 version of BOINC. Do you think it fixes the problem I detailed in the BOINC 7.8.0 for Linux thread?

That sounds like you were looking at the instructions on adding Stretch-backports to a Raspberry Pi which I have on my blog. If you have Debian running Stretch on a normal PC (ie the amd64 architecture) you just need to add a line into your /etc/apt/sources.list that reads:
deb http://deb.debian.org/debian/ stretch-backports main contrib non-free

Then do a "sudo apt update" command followed by a "sudo apt install -t stretch-backports boinc-client boinc-manager" command without the quotes.

Having said that the manager still has the problem of jumping to the bottom of the task list if you have it sorted. It also does it for the transfers tab, even if you don't have it sorted. If that is the bug you were hoping to get a fix for its not in this version.
13) Message boards : Number crunching : BOINC 7.8.3 available to beta test on debian (Message 1889124)
Posted 10 Sep 2017 by Profile MarkJProject Donor
Post:
7.8.2 is available now, at least for amd64 architecture.

The armel/armhf architecture seems to have problem so no version for the Rpi yet.
14) Message boards : Number crunching : BOINC 7.8.3 available to beta test on debian (Message 1886932)
Posted 30 Aug 2017 by Profile MarkJProject Donor
Post:
Thanks to Gianfranco the beta test version of BOINC 7.8.1 is available in Stretch-backports for those running Debian. Any issues found please report on the BOINC-alpha mailing list.

It might be possible to get it running under Raspbian if you have a Pi2 or Pi3 but you'll have to point to the Debian Stretch-backports repo as the Raspberry Pi foundation don't seem to have their own repo.
15) Message boards : Number crunching : Compute errors Linux "stock" app (Message 1883559)
Posted 13 Aug 2017 by Profile MarkJProject Donor
Post:
The later (4.10 and up) kernels have vsyscall disabled. Einstein had a message thread about it breaking their apps. See this thread for more details. Debian Stretch, which comes with a 4.9 kernel, has it enabled and seems to run fine on my Ryzen's.

@Rob, I understand you have the 4.8 kernel, but Mint may have disabled the vsyscall even earlier.
16) Message boards : Number crunching : Panic Mode On (107) Server Problems? (Message 1881621)
Posted 2 Aug 2017 by Profile MarkJProject Donor
Post:
I've got 3 hosts that are having upload problems and scheduler failures for Seti. Other projects seem fine on other hosts. Server status page says upload and schedulers working so maybe another DNS issue.

[edit]Just after posting that uploads start going through.
17) Message boards : Number crunching : For the betterment of BOINC (Message 1880256)
Posted 25 Jul 2017 by Profile MarkJProject Donor
Post:
As already mentioned I would separate the CPU work fetch/scheduling from the GPU work fetch/scheduling so they are independent of each other.

Make credit standard across projects (maybe time based).

Fix the resource share across projects so it's fairer, maybe also time based (separated into CPU and GPU).

A cluster-aware client would be nice for those with farms so it could feed the compute nodes. It would use MPI to communicate with the science apps.

On the server side to help projects get going maybe YouTube videos showing how to setup the virtual image and get jobs going, a checklist of things to define/configure.

MarkJ
18) Message boards : Number crunching : Getting the most production for the least electricity (Message 1879228)
Posted 20 Jul 2017 by Profile MarkJProject Donor
Post:
I think your numbers are actual load as opposed to his which are TDP. My 1060=6GBs drew between 80 and 90 W under full crunch.

. . But the total draw on the clunky old Pentium was about 360W.

Stephen.

The GTX1060 TDP is 120 watts. It also shows that in Nvidia-smi.

The figure I always find difficult to get is how much the memory (and other motherboard components) add.
19) Message boards : Number crunching : Getting the most production for the least electricity (Message 1879033)
Posted 19 Jul 2017 by Profile MarkJProject Donor
Post:
For the 8c/16t route I went with a pair of Ryzen 7 1700's. Only 65w for the CPU. I put a GTX1060 (3Gb) which when running the Petri special sauce knocks over a task between 2.5min and 5min depending on the angle range. According to Nvidia-smi its pulling 74-75w. Its got enough PCIe lanes to run two cards at x16. I use Noctua heatsinks on all my rigs and Seasonic PSU. Cases are all Fractal Design ARC Midi (takes an ATX mobo). Not the cheapest to build but doesn't pull too much electricity either.

For 4c/8t I have 8 i7-6700's which only have the iGPU to keep power use down. While I could use the iGPU I don't. They too are rated at 65w but are a little faster than the Ryzen's. I had i7-3770's before these. The difference wasn't that great despite being 3 generations later. I'll probably wait another generation or two before they get replaced.
20) Message boards : Number crunching : Linux CUDA 'Special' App finally available, featuring Low CPU use (Message 1877916)
Posted 12 Jul 2017 by Profile MarkJProject Donor
Post:
I found the version of wx3 I was looking for here, https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/locutusofborg-ppa/+build/9539157
Tried it with a new download of bonic-master and ended up at the same place I stopped the last time.
I started a new thread if someone has anything to offer, https://boinc.berkeley.edu/dev/forum_thread.php?id=11719
Doesn't look as though there's much activity over there.

Not sure if you have tried dropping Gianfranco an email. He is one of the Debian maintainers.

I know when DA announced a test version on BOINC-alpha Gianfranco asked for things to get fixed up. I think the whole dev tree is stuffed at the moment.


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