On multiprocessor system use 1,2,3,4 processors

Message boards : Questions and problems : On multiprocessor system use 1,2,3,4 processors
Message board moderation

To post messages, you must log in.

AuthorMessage
Pop Horea-Vasile

Send message
Joined: 16 Jun 11
Posts: 115
Romania
Message 49494 - Posted: 3 Jun 2013, 15:50:28 UTC

Hello,
I'm cosntrain to use at the setting ”On multiprocessor system use” the following: 28%,58%,78% and I think that it will be very confartable if the setting should dettect haw many they are: 2,4 or 8 and use a variable, eg.: 1,2,3,6.
I don't know programming and I can't do it my self, but I'm a proud 3 year user of BOINC with aprox.: 1.6 quintilion operations.
Is there any one who can contribute to the project with this kind of work ?
Please notify me if you are the one.

pop.horea@yahoo.com
0040 755 42 00 35 (Romania)
ID: 49494 · Report as offensive
SekeRob2

Send message
Joined: 6 Jul 10
Posts: 585
Italy
Message 49498 - Posted: 3 Jun 2013, 17:38:31 UTC - in response to Message 49494.  

Think the % of processors came forth from different devices attached to the same location profile, so if you set 75%, for a quad that'd be 3 of 4 processors and on an octo 6 of 8. Additionally, the percent has the effect of rounding down to a whole number of processors. If a duo would be attached to same location profile, that equated 1.5 processors would become in effect 1 processor [50%].

Not going to send you a mail or call you, but I've been BOINCing 7 years... since April 2006. If going by the x-project draft certificate, I'd trump you by a factor 3
Certificate of Computation

This certifies that

SekeRob

has contributed 5,898,263 Cobblestones of computation (5.10 quintillion floating-point operations) to the following scientific research projects:


... and I'm still small change in the top 1% of global contributors, as of this moment in position 21,822 out of 2,589,943 since daily update. We all do though what we can afford and makes sense to the individual, so I'd say

Crunch On.
Coelum Non Animum Mutant, Qui Trans Mare Currunt
ID: 49498 · Report as offensive
peterlowrie

Send message
Joined: 18 Feb 12
Posts: 3
New Zealand
Message 50306 - Posted: 25 Aug 2013, 1:50:12 UTC - in response to Message 49498.  

All my systems are multiprocessor, except my Raspberry PI :)

On my x86-64 box, an HP DL580 G5 there are 4 dualcore CPU's with hyperthreading which means the Linux OS (Suse12.3) sees a total of 16 cores. There's 12g RAM. Here's a look at top...


    top - 10:28:25 up 1 day, 22:20, 9 users, load average: 17.20, 16.76, 16.52
    Tasks: 348 total, 17 running, 331 sleeping, 0 stopped, 0 zombie
    %Cpu(s): 0.6 us, 1.8 sy, 97.4 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st
    KiB Mem: 12328708 total, 6153860 used, 6174848 free, 453348 buffers
    KiB Swap: 2027740 total, 0 used, 2027740 free, 2766996 cached

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    15671 boinc 39 19 105m 38m 12 R 100.8 0.3 197:29.46 setiathome_7.01
    15959 boinc 39 19 43552 39m 16 R 100.8 0.3 82:01.24 setiathome_7.01
    15962 boinc 39 19 41388 38m 16 R 100.8 0.3 81:43.62 setiathome_7.01
    15595 boinc 39 19 41332 38m 16 R 100.5 0.3 233:26.01 setiathome_7.01
    15844 boinc 39 19 42648 39m 16 R 100.5 0.3 130:25.82 setiathome_7.01
    15885 boinc 39 19 105m 38m 12 R 100.5 0.3 109:15.42 setiathome_7.01
    15888 boinc 39 19 105m 38m 12 R 100.5 0.3 108:35.72 setiathome_7.01
    15930 boinc 39 19 40996 37m 16 R 100.5 0.3 93:46.04 setiathome_7.01
    15968 boinc 39 19 107m 40m 12 R 100.5 0.3 77:13.32 setiathome_7.01
    16033 boinc 39 19 105m 38m 12 R 100.5 0.3 51:18.21 setiathome_7.01
    15599 boinc 39 19 41676 37m 16 R 100.2 0.3 231:49.60 setiathome_7.01
    15972 boinc 39 19 105m 37m 12 R 99.8 0.3 76:09.34 setiathome_7.01
    15964 boinc 39 19 106m 39m 12 R 99.5 0.3 78:18.09 setiathome_7.01
    15856 boinc 39 19 106m 39m 12 R 98.2 0.3 123:23.43 setiathome_7.01
    15602 boinc 39 19 106m 39m 12 R 96.2 0.3 226:34.64 setiathome_7.01
    13650 boinc 39 19 41992 38m 16 R 86.3 0.3 772:03.81 setiathome_7.01



Whereas I booted a single boinccmd via the command line and whereas the GUI won't attach to the processes (I haven't figured out what to do), you can see that the one execution populated into each core and the systems shows an across-the-board load of 16. Due to the overall grunt of the machine I don't care about reducing boinc processing while I do other things. All 16 cores are operating at or near 100%.

Now then, when it comes to my Sun boxes it's a completely different story. I set the Sun and the HP up exactly the same and here's top...


    top - 10:37:24 up 56 days, 17:28, 3 users, load average: 0.03, 0.21, 0.12
    Tasks: 138 total, 1 running, 136 sleeping, 0 stopped, 1 zombie
    Cpu(s): 0.5%us, 0.3%sy, 0.0%ni, 99.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
    Mem: 6221456k total, 6167896k used, 53560k free, 80k buffers
    Swap: 3998984k total, 152k used, 3998832k free, 5234272k cached

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    19469 peter 20 0 12160 4144 3064 S 0 0.1 1:11.76 boinc
    1 root 20 0 2672 984 848 S 0 0.0 0:30.74 init
    2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd



...which I see as a complete let-down. The CPU's aren't even loaded. I want them to work like the HP box.

Hmmm.
Peter[/list]

ID: 50306 · Report as offensive
Profile Jord
Volunteer tester
Help desk expert
Avatar

Send message
Joined: 29 Aug 05
Posts: 15483
Netherlands
Message 50307 - Posted: 25 Aug 2013, 2:09:22 UTC - in response to Message 50306.  
Last modified: 25 Aug 2013, 2:09:34 UTC

The CPU's aren't even loaded. I want them to work like the HP box.

These are the applications that Seti supports out of the box. If your operating system isn't in the list, you'll have to check for Seti Enhanced and Astropulse applications and install & update those manually through the anonymous platform.

I think you installed BOINC either from third party, or through a repository.
You can check in the BOINC data directory for the stdoutdae.txt file and see what it says in here what BOINC is missing. It'll probably tell you that the Seti project does not have an application for e.g. sparc-sun-solaris2.7
ID: 50307 · Report as offensive

Message boards : Questions and problems : On multiprocessor system use 1,2,3,4 processors

Copyright © 2024 University of California.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.