Posts by Cheng Fan Soon

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21) Message boards : Number crunching : AP wu's? (Message 1166436)
Posted 597 days ago by

on your project preferences pick a different venue (add school/work/home) and untick both astropulse boxes and the box from 'if not available, accept other'
set the host to the new venue on that hosts details page - at bottom of the page drop down menu for 'location'.

Regarding lack of AP: the currently loaded set of tapes has all the AP split already. When we get fresh tapes, they'll have new AP.

Thanks. i followed your step and it works!
On my Solaris 10 machine, today finally got one AP
...but...i always got this problem when downloading AP.....(see below)

Sending scheduler request: To fetch work.
[SETI@home] Requesting new tasks for CPU
[SETI@home] Scheduler request completed: got 1 new tasks
[SETI@home] Started download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu
[---] Project communication failed: attempting access to reference site
[SETI@home] Temporarily failed download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu: HTTP error
[SETI@home] Backing off 10 min 1 sec on download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu
[---] Internet access OK - project servers may be temporarily down.
[SETI@home] Started download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu
[---] Project communication failed: attempting access to reference site
[SETI@home] Temporarily failed download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu: HTTP error
[SETI@home] Backing off 38 min 54 sec on download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu
[---] Internet access OK - project servers may be temporarily down.
[SETI@home] Started download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu
[---] Project communication failed: attempting access to reference site
[SETI@home] Temporarily failed download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu: HTTP error
[SETI@home] Backing off 1 hr 1 min 51 sec on download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu
[---] Internet access OK - project servers may be temporarily down.
[SETI@home] Started download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu
[SETI@home] Temporarily failed download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu: HTTP error
[SETI@home] Backing off 2 hr 8 min 8 sec on download of ap_03mr11ac_B6_P1_00096_20111030_13192.wu

22) Message boards : Number crunching : AP wu's? (Message 1165969)
Posted 599 days ago by

look like no AP wu coming in to my Solaris 10 machine since 25th Oct.
This machine can run AP only.
Tried configure it to run Setiathome_enhanched but it always produce error.

Another (Fedora) machine can run Setiathome_enhanced only, all AP wu produced error on this Fedora machine. This machine getting lot of AP WU since the 1st day but all result in error!
(don't know how to configure it not to receive AP)

23) Message boards : Science (non-SETI) : Dark Matter, Dark Energy (Message 1165451)
Posted 601 days ago by

Dark Energy:
Imagine the burning star, supernova explosion, matter fall into black hole, gamma ray burst, merging of two neutron stars, merging of two black holes..etc...all these events emit huge amount of energy in the form of radiation. Due to the vastness of space most emitted radiation(energy) will simply traveling in space for a long period of time before reaching the destinations.
Energy in the state of 'traveling' is call Dark Energy (source: imagination from myself)

Dark matter:
No one knows the total mass of all black holes in a Galaxy (example: Milky Way galaxy)
All the Dark Matter are actually reside at the singularity of black holes. (source: imagination from myself)

just a thought......

24) Message boards : Number crunching : How to remove a computer from seti / boinc (Message 1163626)
Posted 608 days ago by

I am gradually replacing all the FreeBSD 8 os to Solaris 10 and 11 express.
On solaris, boinc can run under normal user account.

But the only problem is that i can't turn off the laptop LCD screen when the laptop is crunching wu under Solaris 11 express.

25) Message boards : Number crunching : How to remove a computer from seti / boinc (Message 1163413)
Posted 609 days ago by

My old computer crashed / Broke , I can't get the boinc / seti info to abort.
So how do I get the computer removed from seti ?

It happens to my FreeBSD machine too.
It was ok when I run boinc under root account.
But yesterday i tried create a boinc login account and run boinc under boinc account. Don't know why this morning after shutdown and login again everything not working. Shutdown and re-login as root again only to find out that the whole boinc directory gone! missing! (there were 6 wu inside the projects folder!)

26) Message boards : Number crunching : Does it make sense to crunch Astropulse? (Message 1162918)
Posted 611 days ago by

deleted...

27) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1162800)
Posted 612 days ago by

Installed the Solaris 11 Express on a laptop last week.
and manage to install Boinc+setiathome also.

but than found that there is no way to turn-off the LCD display while it is crunching wu.

28) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1161837)
Posted 614 days ago by

My boinc (on Solaris 10) so far crunched 3 setiathome-enhanced wu and one astropulse wu.

All 3 setiathome.enhanced wu produced error but the astropulse's result is ok.
Seem like i will need to re-iinstall the whole Solaris 10 and the boinc again.
It is on a P-IV machine that i am not using it for anything. So ok to play with it a bit.

29) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1161229)
Posted 616 days ago by

Why don't you try Solaris Express? It is a preview of Solaris 11 and it is free (at least for now).
Tullio

Thanks.....
i will try Solaris Express later.

30) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1161142)
Posted 616 days ago by

So far i have tried install Solaris into 5 PCs (2 laptops + 3 desktop)
only succeed install on one desktop with Solaris

Unsuccess list:
2 Laptops - graphics card not supported
1 desktop - LAN card not supported
1 desktop - 64bits CPU not supported.

31) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1160856)
Posted 617 days ago by

my boinc downloaded an astropulse work unit and start running,
but after few hours it say: "Task ap_26jn1lab_.... exited with zero status but no 'finished' file."

Is it because i need to chown first?
so I stop boinc and key in a command:
(in /opt)
chown root:sys ./boinc/projects/setiathome.berkeley.edu/*
and than run ./boinc again. (i am running in terminal under root)
and so it restart the task.

am i doing the right thing?

32) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1160223)
Posted 619 days ago by

I have downloaded both setiathome enhanced and astropulse application
and extract the files to /opt/boinc/projects/setiathome.berkeley.edu/
and i also edit the app_info.xml to match the setiathome(version number)
and astropulse(veriosn_number) to the files.

than i run
./boinc_client -update_prefs http://setiathome.berkeley.edu

the respond i got is this (last two lines):
Suspending computation - time of day
Suspending network activity - time of day

33) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1159784)
Posted 620 days ago by

I downloaded Boinc client binary from Lars website and run:

./boinc_client -attach_project http://setiathome.berkeley.edu "account key"

There is a line say: "This project doesn't support computers of type i686-pc-solaris"
Is my boinc running correctly?

Starting BOINC client version 6.12.26 for i686-pc-solaris
[---] log flags: file_xfer, sched_ops, task
[---] Libraries: libcurl/7.18.0 OpenSSL/0.9.8p zlib/1.2.3
[---] Data directory: /opt/boinc
[---] Processor: 1 i86pc pentium_pro+mmx
[---] Processor features:
[---] OS: SunOS: 5.10
[---] Memory: 767.06 MB physical, 517.71 MB virtual
[---] Disk: 9.45 GB total, 5.05 GB free
[---] Local time is UTC +8 hours
[---] No usable GPUs found
[http://setiathome.berkeley.edu/] URL http://setiathome.berkeley.edu/; Computer ID not assigned yet; re source share 100
[---] No general preferences found - using BOINC defaults
[---] Preferences:
[---] max memory usage when active: 383.53MB
[---] max memory usage when idle: 690.36MB
[---] max disk usage: 4.72GB
[---] don't use GPU while active
[---] suspend work if non-BOINC CPU load exceeds 25 %
[---] (to change preferences, visit the web site of an attached project, or select Preferences in th e Manager)
[---] Not using a proxy
Initialization completed
[---] Running CPU benchmarks
[---] Suspending computation - CPU benchmarks in progress
[---] Benchmark results:
[---] Number of CPUs: 1
[---] 893 floating point MIPS (Whetstone) per CPU
[---] 3362 integer MIPS (Dhrystone) per CPU
[http://setiathome.berkeley.edu/] Master file download succeeded
[http://setiathome.berkeley.edu/] Sending scheduler request: Project initialization.
[http://setiathome.berkeley.edu/] Requesting new tasks for CPU
[SETI@home] Scheduler request completed: got 0 new tasks
[SETI@home] This project doesn't support computers of type i686-pc-solaris
[SETI@home] New computer location: home
[SETI@home] Started download of arecibo_181.png
[SETI@home] Started download of sah_40.png
[SETI@home] Finished download of sah_40.png
[SETI@home] Started download of sah_banner_290.png
[SETI@home] Finished download of sah_banner_290.png
[SETI@home] Started download of sah_ss_290.png
[---] Suspending computation - CPU is busy
[SETI@home] Finished download of arecibo_181.png
[---] Resuming computation
[SETI@home] Finished download of sah_ss_290.png
[---] Suspending computation - CPU is busy
[---] Resuming computation

34) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1158803)
Posted 623 days ago by

finally found the answer
use a download manager
Gwget, MultiGet or SKDownloader

35) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1158213)
Posted 625 days ago by

Wanted to try install Solaris 10 and than run Seti@home on it.

So I tried to direct download the iso file (3GB) from Solaris website but
after downloaded about 680MB, an error message appear and it can't finish the download.
Click the link again, but the download process re-start from 0 Byte so I just cancel the download.

Anyone can teach how can I download the iso file? (about 3GB)
Seem like Solaris website does not provide torrent download.

Note: I was using Fedora 15 to download the file.

36) Questions and Answers : Getting started : Power consumption (Message 1157917)
Posted 626 days ago by

How much total power do 7 PCs use?

I am going to run Seti@home on 7 PCs.

1 Laptop (Centrino Duo)
4 Pentium IV
2 Pentium III

Anyone can give an estimate?

(at the moment running on 5 PCs - 4 Pentium IV and 1 laptop)

37) Message boards : Science (non-SETI) : Fusion combine geothermal power. (new idea?) (Message 1155082)
Posted 635 days ago by

(Note: this is just an imagination)
After many-many continuous small blast (tiny blast actually compare to the fission+fusion one)
than stop the blast.
Then after this use geothermal power plant method to generate electricity. The stored energy underground will be able to run the geothermal power plant for several months (I guess)

After several months when the underground energy depleted than repeat the blast again.

Imagine you have two area A and B. You just have to switch between A an B.
When geothermal power plant is running on stored energy on area A, the blast process is on area B.
When energy A depleted and energy B increased than make a switch, and
now geothermal power plant running on stored energy on area B and the blast process on area A.

38) Message boards : Science (non-SETI) : Fusion combine geothermal power. (new idea?) (Message 1154425)
Posted 636 days ago by

Well, the NIF is using Laser to ignite tiny deuterium and tritium pellet (miniature size H-bomb equal to about 11kg TNT).

https://lasers.llnl.gov/newsroom/project_status/2011/june.php

It is analogy to petrol internal combustion engine.
In petrol engine, mixture of petrol and air ignite a small explosion inside cylinder and that pushes the piston.
And this small explosion is repeated at rate of many time per second and that provide lots of power to move the car.

In Laser fusion, they need to ignite the tiny deuterium and tritium pellet at rate of about 10 pellet per second.
And the heat (energy) release will heat up the chamber wall, than the heat can be use to produce steam to run turbine to generate electricity.

My view is: If the ignition of the pellet can be done underground than the size of the pellet can be bigger (can be easily variable from say 100kg t0 10,000kg TNT) without the need of a strong big chamber and the rate of ignition can be lower (maybe one per few hours).
But how to channel the laser beam into underground? Maybe by using fibre optics? (Science fiction?)

The Sedan test at 194 meters (636 ft) underground is of course too shallow compare to geothermal well which can be as deep as 3000 meters.

39) Questions and Answers : Unix/Linux : Just installed Boinc on my FreeBSD machine (Message 1153763)
Posted 638 days ago by

yeah, so I went into folder
/usr/ports/astro/boinc-setiathome-enhanced and
make install clean

It successfully installed setiathome-enhanced
and when I start boinc, the programme successfully downloaded 4 tasks.
So i guess, my freeBSD machine is now installed with both astropulse and
setiathome-enhanced.

40) Questions and Answers : Unix/Linux : Just installed Boinc on my FreeBSD machine (Message 1153629)
Posted 639 days ago by

Just installed FreeBSD on my another machine.
This time i went into /usr/ports/astro/boinc-astropulse
and
make install clean

It successfully installed boinc-astropulse
but when i start the programme, i got messages
"Your app_info.xml file doesn't have a usable version of SETI@home Enhanced."

and

"Sending scheduler request: To fetch work. Requesting 129600 seconds of work, reporting 0 completed tasks
Scheduler request completed: got 0 new tasks
Message from server: No tasks sent."

should I go into the folder
/usr/ports/astro/boinc-setiathome-enhanced and
make install clean ?

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