Posts by Cheng Fan Soon


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21) Message boards : Science (non-SETI) : Speed of light broken again as scientists test neutrino result (Message 1172582)
Posted 1034 days ago by Profile Cheng Fan Soon
But than why jets of matter from Quasar only able to move close to the speed of light, not exceed the speed of light?

http://en.wikipedia.org/wiki/Quasar#Properties
http://en.wikipedia.org/wiki/Blazar#Relativistic_beaming
22) Message boards : Number crunching : How to specify "no new task" (under command line Terminal) (Message 1171634)
Posted 1037 days ago by Profile Cheng Fan Soon
Am running boinc by using commend line ./boinc_client
I want it to stop download new WU, how can i do that?
For the GUI window, I know it has a button for [no new task], but doesn't seem to have this option when run using the command line.
I am thinking to to re-install a new operating system on this computer.

But even if i specify ./boinc_client --fetch_minimal_work , it still downloaded 4 WU.

Thanks
23) Message boards : Number crunching : Should i install BOINC on a pentium 2 ? (Message 1171356)
Posted 1038 days ago by Profile Cheng Fan Soon
Me have two PIII.
Tried install FreeBSD (without gnome) into one of the PIII and install setiathome_enhanced(from dotsch.de).
But all WU produced error.
Tried install Fedora 15 but also un-success.
24) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1170217)
Posted 1043 days ago by Profile Cheng Fan Soon
hmmm..oracle.com just released Solaris 11 for free download.
So I downloaded the live DVD (with desktop GUI), going to replace all my Solaris 10 with Solaris 11.
25) Message boards : Number crunching : Killed a 525W PSU, throwing a 850W at SETI@home (Message 1167097)
Posted 1052 days ago by Profile Cheng Fan Soon
I am thinking the other way, that is to use a smaller power supply(but high efficiency one) to reduce the power consumption
A desktop with a pentium I5 (less than 100W), motherboard+onboard graphics card+harddisk will not consume more than 150W, take out the DVD drive.
So a 250W will be enough.

I also running setiathome on a laptop, this laptop's power supply is only 180Watt.
26) Message boards : Number crunching : AP wu's? (Message 1166436)
Posted 1055 days ago by Profile Cheng Fan Soon
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
27) Message boards : Number crunching : AP wu's? (Message 1165969)
Posted 1057 days ago by Profile Cheng Fan Soon
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)
28) Message boards : Science (non-SETI) : Dark Matter, Dark Energy (Message 1165451)
Posted 1059 days ago by Profile Cheng Fan Soon
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......
29) Message boards : Number crunching : How to remove a computer from seti / boinc (Message 1163626)
Posted 1066 days ago by Profile Cheng Fan Soon
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.

30) Message boards : Number crunching : How to remove a computer from seti / boinc (Message 1163413)
Posted 1067 days ago by Profile Cheng Fan Soon
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!)
31) Message boards : Number crunching : Does it make sense to crunch Astropulse? (Message 1162918)
Posted 1069 days ago by Profile Cheng Fan Soon
deleted...
32) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1162800)
Posted 1069 days ago by Profile Cheng Fan Soon
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.
33) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1161837)
Posted 1072 days ago by Profile Cheng Fan Soon
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.
34) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1161229)
Posted 1074 days ago by Profile Cheng Fan Soon
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.
35) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1161142)
Posted 1074 days ago by Profile Cheng Fan Soon
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.
36) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1160856)
Posted 1075 days ago by Profile Cheng Fan Soon
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?




37) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1160223)
Posted 1077 days ago by Profile Cheng Fan Soon
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
38) Questions and Answers : Unix/Linux : boinc_client on Solaris 10 pentium 4 machine (Message 1159784)
Posted 1078 days ago by Profile Cheng Fan Soon
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
39) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1158803)
Posted 1081 days ago by Profile Cheng Fan Soon
finally found the answer
use a download manager
Gwget, MultiGet or SKDownloader
40) Questions and Answers : Unix/Linux : Wanted to try install Solaris 10 on Pentium 4 machine (Message 1158213)
Posted 1083 days ago by Profile Cheng Fan Soon
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.





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