Si no puede encontrar a su pregunta, por favor añádala.
Más información sobre SETI@home y Windows se puede encontrar en páginas relacionadas.
Puede encontrar más información sobre Mackintosh en páginas relacionadas.
Más información sobre SETI@home en UNIX en
páginas relacionadas.
Si no encontró su pregunta en esta página, puede enviarnosla
aquí.
Para sistemas Windows (95/98/NT)
necesitaras un PC con mínimo 32MB de RAM, capacidad gráfica de 8bits en resolución de 800x600, 10MB de espacio en disco, y una conexión a internet.
Para sistemasMacintosh necesitaras lo anterior, asi como in procesador PowerPC y Mac OS 7.5.5 o posterior.
Se puede usar SETI@home en un portatil que se conecte ocasionalmente.
Tambien soportamos muchas versiones de UNIX,
incluyendo Linux en varias CPUs. Esperamos dar soporte a otros sistemas como OS/2 y BeOS. No aceptamos WebTV.
No importa ni la velocidad de su CPU ni la velocidad del modem. tampoco importa el lugar del mundo dende viva.
No. Sólo necesitas descargar e instalar el programa.
Cerca de 5 minutos con un modem de 28.8Kbps
SETI@home se conecta sólo para transferir datos.
Esto ocurre cada varios dias y necesita unos 5 minutos (Lo puedes hacer mientras bajas el correo o navegas). El resto del proceso se hace estando desconectado.
SETI@home usa bastante memoria mientras se ejecuta y podría dar problemas en algun computador. nos queremos asegurar de que no tiene ningun efecto sobre el trabajo que realiza
normalmente con su computador, por eso, para PC y Mac el modo por defecto es el de salvapantallas.
De todas maneras si ya tiene un salvapantallas favorito o prefiere
no ver el salvapantallas, SETI@home puede tambien funcionar como programa
en segundo plano funcionando todo el tiempo y sin gráficos.
Así es como funciona la version UNIX
Todavía no es lo bastante rápido y muchos detalles que dependen del sistema necesitan estar hechos en C.
El programa/salvapantallas solo se puede descargar desde esta página - No apoyamos a singun programa SETI@home obtenido en otro sitio.
Este software envia y descarga datos sólo de nestro servidor aquí en Berkeley.
El servidor de datos no descarga ningun código ejecutable desde su PC.
Todo sea dicho, el salvapantallas es mucho mas seguro que el navegador de Internet que está usando ahora mismo !!!
No la version inicial. Puede que la siguiente.
Hemos decidido no mostrar el código fuente por razones de seguridad y razones científicas.
Todo el mundo tiene que hacer exactamente el mismo analisis, o no tendremos control sobre la investigación ni podremos confiar en los resultados.
Tambien estamos preocupados por si alguien quiere hurgar deliberadamente en nuestra base de datos y servidor.
Los usuarios no han de hacer nada que no quieran.
Los resultados pueden ser enviados automaticamente la próxima vez que el usuario se conecta a Internet (comprobando el e-mail, navegando, etc), o se puede hacer que pidan permiso cuando necesiten conectarse.
SETI@home usa el protocolo HTTP,
y trabaja cualquier firewall semi-transparente que permita trafico saliente de la Web.
Las últimas versiones de SETI@home deberian trabajar a través de firewalls y proxys mas restrictivos
Si tiene problemas conectando desde Windows a traves de un proxy SOCKS, puede visitar SocksCap de NEC y
Hummingbird Socks
. Los dos le permiten usar software somo si estuviera "directamente conectado a Internet".
Si tiene algún problema conectando por protección de contraseña a traves de Microsoft Proxy Server, compruebe
If you're having trouble connecting with password protection
through Microsoft Proxy Server, check out
Proxomitron
Si TODAVIA tiene problemas conectando a traves de un servidor proxy HTTP y está ejecutando SETI@home en una version antigua de Windows 95, Microsoft ha actualizado el driver de Winsock2 que corrige el problema, y permite que SETI@home se conecte.
Busque "Windows Socket 2" en la sección de Información de Producto de la web de Microsoft. El fichero ocupa unos 986 kbytes, y supera al Windows 95 Service Pack 1.
Para más información de como instalar Proxomition haga
click aquí.
Windows software is packaged in files ending with .exe, Mac software with .sit or .hqx, and UNIX with .tar - chances are you have downloaded software for a system other than yours.
En la mayoria de los monitores, no.
Para asegurarse, marque la opcion "Go to blank screen" en la opción Settings del salvapantalla.
Yes, you can - and as long as you use the same login on each machine,
you'll get credit for them all.
Please note that you can (currently) only run one SETI@home process on a
Windows or Mac machine, and if you are running multiple SETI@home UNIX processes, they must
be running out of different directories. To setup these directories simply install
the UNIX client as you normally do, but install into a different directory each time. Now you can
run multiple SETI@home UNIX processes by starting one instance of the client from each SETI@home
directory.
Hacemos un seguimiento de todas las unidades que se envian. Si tardan demasiado en volver, el servidor las envia automaticamente a otro usuario. Sólo cuando recibimos los resultados y los confirmamos el servidor borra la unidad del disco.
No. En teoria es posible transferir datos y resultados en disquette, pero no lo apoyamos. Compruebe la respuesta a la pregunta
to question ¿Puedo usar un PC que se conecte rara vez?
Si. Compruebe los scripts: FetchCache
y RunCache
For quite a while now we have been sending the data out multiple times over the
course of a day or so without waiting for a result at all. That allows us
to delete the file from our local disks sooner than we otherwise would and
keep our splitters generating data files at a high rate.
Copy any file into your SETI@home Data directory and rename it
"stop_after_send.txt". On the Macintosh, the "SETI@home Data" directory is
in the Preferences folder, inside your System folder; on UNIX and Windows
it is in the same directory as the executable file SETI@home.exe. If you
later want to get a new work unit, remove the "stop_after_send.txt" file.
This boils down to the vastly different speeds of different processors. As well,
UNIX versions don't have any graphics (yet) and therefore run much faster.
You can speed up the Mac and Windows processing by selecting your
screensaver to "blank" after a few minutes, thereby reducing the graphics
overhead. In addition, there was a bug in early Windows version (before 1.05)
that caused it to report incorrect CPU times.
The clients are still looking for Gaussions, however rather than display information
about gaussions all the time, in newer clients the information only appears if
the client has found a gaussian strong enough to report back to us.
The SETI@home client may be being interrupted by
another screen saver or screen saver-like program.
As SETI@home is designed to be as noninvasive as possible by only using
your computer while it is idle,
if the client detects another program that wants to run,
SETI@home will quit and step out of the way.
If this other program is another screen
saver or some other application that waits until your computer
is idle before running,
both SETI@home and the other program will try to run
when the computer is idle causing SETI@home to quit.
One common application which shows this behavior is McAfee VirusScan.
If you have VirusScan installed,
make sure that you have turned off the ScreenScan
portion of the application as this will interfere with SETI@home.
If you need to change anything other than your e-mail address,
you can use this web-based form: Account Change.
If you need to change your e-mail address, you must have access to the
old account, since this is where we'll mail your password. If you don't
have access to your old account, or you mis-typed your e-mail address
when first logging in, you will have to log in again as a new user with
the correct e-mail address.
For both security and administrative reasons, we cannot process
any account changes unless you use the
Account Change form.
Our screensaver works just like any other screensaver, which includes the
ability for the operating system to enforce password protection. This is done
through the normal password protection channels.
One CPU is doing graphics and the other is doing
data analysis (so actually it is multithreaded, in a limited way).
The most likely cause
of this is Microsoft's "FastFind" utility. "FastFind" keeps a sorted index
of all documents on the disk. While it generates this index it occasionally
locks the file "state.txt." To avoid this error you may want to change the
"FastFind" run interval to a large number like 999 hours.
(To do that click on start->settings->control panel. Select FastFind.
Click on Index and select 'Interval' and change the interval.)
Si. Vea
¿Funciona SETI@home a través de firewalls (o proxys)?.
If you set "Ask me before connecting" in the Preferences dialog,
SETI@home will display more detailed information for many errors.
Due to overwhelming interest in the SETI@home project,
the server may intermittently be unreachable
as too many clients are trying to connect.
The server may also be occasionally down for maintainance.
If you are unable to connect, please wait an hour and try again.
When we receive the results of a completed work unit at our server, it
is transferred to a separate computer for processing. There may be a delay
of up to a few days before the results are assimilated and verified. Your
credit is updated only after verification of the work unit results data.
Once the server has updated your statistics, your computer will receive the
revised values the next time it connects to the server.
This means that your displayed statistics will generally lag behind the
work actually done.
No. You can parallelize SETI@home by running multiple
instances of it, either on a multiprocessor or on the nodes of a cluster.
Just make sure that each instance runs in a different directory.
No una gráfica. Podriamos hacer una version de comando DOS.
no tenemos oficialmente una version que funcione como servicio NT, pero
We don't officially have a version that runs as an NT service out-of-the-box,
aqui tiene instrucciones
sobre como hacer usted mismo que SETI@home funcione como servicio NT.
Esto no es un fallo de SETI@home, sino un virus ("hybris-b") que tiene este comportamiento. por favor descargue la última versión de antivirus y desinfecte sus sistemas.
Si, en Preferencias , seleccione "Data Analysis Always Runs"
Seleccione un salvapantallas diferente.
SETI@home funcionara, incluso cuando su salvapantallas este funcionando.
Para proteger su cuenta de mofificaciones por otras personas, requerimos su e-mail y contraseña para acceder. Si pierde esta información, desafortunmadamente no podemos ayudarle a acceder a su cuenta ni resultados. Necesita crear una nueva cuenta con una dirección e-mail válida para acceder a cualquier reconocimiento futuro.
Existe una Declaracion de Principios (Inglés)
entre los investigadores SETI de todo el mundo.
Primero, otros investigadores SETI tendran que verificar la señal independientemente.
Si la señal es real y no puede ser explicada por fuentes humanas (satélites, reflejos, etc) entonces las agencias de prensa y gobiernos seran notificados de forma sistemática.
Si, Nuestro software hace un seguimiento de donde se ha analizado cada fragmento. Si su computador forma parte de la deteccion usted será, si quiere, nombrado como co-descubridor.
Debido a la gran respuesta y la alta calidad de los datos de analisis vamos a extender el proyecto más allá de los 2 años. Tambien extenderemos el proyecto para incluir datos de otras bandas de frecuencia, datos de un observatorio en el hemisferio sur, o ambos.
Nuestro objetivo es simplemente encontrar la señal.
Si contiene informacion, se necesitaran expertos lingüistas o matemáticos para descifrarla.
Data is recorded on high density tapes at the Arecibo telescope in Puerto Rico,
about one 35 Gbyte tape per day, then mailed to Berkeley, then divided into
0.25 Mbyte chunks which get sent from the Seti@Home server over the internet
to people around the world to analyze.
Arecibo does not have a high bandwidth internet connection,
so data must go by snail mail to Berkeley at first.
No, todos los computadores reciben el mismo tamaño de archivos. Los computadores más rápidos los finalizan antes e immediatamente reciben un nuevo fragmento para trabajar, así les mantenemos siempre ocupados.
We search for strong narrow band signals.
It's like tuning your radio set to various channels,
and looking at the signal strength meter.
If the strength meter goes up, that gets our attention.
More technically, it's a lot of digital signal processing,
mostly Fourier Transforms at various chirp rates and durations.
We also search for pulsing and drifting signals, and signals which match
the antenna beam pattern as the telescope slews across the sky.
The analysis software searches
for signals about 10 times weaker than any search done to date, because
it makes use of a computationally intensive algorithm called
"coherent integration" that no one else (including our Serendip program)
has had the computing power to implement.
They are merged in a database using our computers here,
interference is rejected, and various pattern detection algorithms
are applied to search for the most interesting signals.
Si. Sin entrar en detalles (por motivos obvios) tenemos un mecanismo que detecta los falsos resultados.
Vea la pregunta anterior.
De todas maneras no importaría - Si hay un "positivo" nosotros analizaremos ese fragmento para verificarlo.
Es posible. Llegados a ese punto, podremos enviar los mismos datos a más de un usuario e incluso, si podemos permitirnoslo, podemos poner otra unidad de grabado en Arecibo y grabar un campo más amplio de frecuencias (Nuestros sistemas actuales graban sólo 2.5Mhz del ancho de banda de 100Mhz de SERENDIP)
No. The CPU on most computers is always executing instructions
(often the operating system's "idle loop")
whenever the computer is turned on.
It's no additional strain to execute SETI@home.
In response to many requests from our users, SETI@home will now run on
systems with screen resolutions smaller than 800X600 pixels. But if the
window is larger than the screen resolution, parts of the SETI@home display
window may extend off the edge of the screen; if this happens, move the
window around to see all the data, or set the display to a higher
resolution.
Select the "Blank screen after 1 minute" option under Screensaver Settings,
and select "Data analysis always runs" in the Preferences dialog.
Minimize the application window.
Will SETI@home run faster with more RAM (e.g., 256 MB instead of 128 MB)?
SETI@home uses about 16 MB of RAM while it's running.
Beyond a certain point (typically 64MB,
more if you run memory-itensive applications)
more RAM won't make it run faster.
No. SETI@home writes its results to disk every minute or two.
If time resolution does not yield 64 or more time bins,
or if the slew rate is out of bounds,
the curve-fitting routine is not called.
In the curve-fitting routine,
if a Power of Time array has no bin above 3 sigma, skip that array.
For each bin (i.e., each candidate Gaussian)
if amplitude not above 3.2 sigma (mean recalculated to exclude peak)
skip that bin.
Occasionally, a work unit will contain strong radio
interference; these strong interfering signals
typically come from satellites and radar from our own civilization.
If the interference is very strong, the SETI@home program can
not analyze that part of the spectrum, and after trying
for a few minutes and detecting thousands of strong signals of earth origin,
the program stops early in the processing and gets a new work unit.
You will still get credit for the work done.
With version 3.0, we introduced 2 new algorithms to search for pulsed signals.
One is a generalized pulse finder and the other is a fast triplet finder.
See for description of the algorithms. The generalized pulse finder,
while highly optimized, is still very compute intensive. In order to balance
sensitivity to pulsed signals (a good thing) with workunit throughput (also
a good thing), the client will apply the pulse finder more often in some
workunits than others.
The finer the time resolution (ie, the greater the number of bins in the time dimension),
the more effective the pulse finding will be. The pulse finder always works with a chunk of data
covering 1 telescope beam (0.1 degrees on the sky). For any given frequency resolution,
the time resolution of 1 beam is determined entirely by the slew rate of the
telescope at the time that the data were acquired. On one hand, the pulse finder
does not bother with very coarse time resolutions and on the other, it avoids
superfine time resolutions, as the execution time becomes prohibitively large.
There is always a tradeoff and we have tried to achieve the optimal balance.
Slew rate also affects whether or not the client executes the gaussian finder.
The following chart shows what gets executed at various slew rates. The corresponding
angle range is also given. You can see the angle range for your workunit in the
workunit header. The horizontal axis is frequency resolution in both FFT length
and Hz. For any given slew rate / frequency resolution pair, you can see whether gaussian
finding (G), pulse finding (P) or triplet finding (T) is executed.
Plataformas
SETI@home data distribution
SETI@home science
SETI en general
¿Que necesito para participar en SETI@home?
¿Necesito saber algo de ciencia or de SETI para usar SETI@home?
¿Cuanto tarda en descargarse el salvapantallas?
Pago por cada hora de conexión a Internet
¿Cuanto tiempo necesita SETI@home estar conectado?
¿Porque es un salvapantallas en lugar de un programa que funcione en segundo plano todo el tiempo?
¿Porque no lo hacen en Java?
¿Que pasa con la seguridad?
Usará el salvapantallas más de un procesador en un computador multiproceso?
¿Porque no muestran el código fuente?
¿Como es de complejo el software? ¿Tienen que estar los usuarios encenciendo, apagando, enviando, los resultados? ¿Tiene que estar mi computador conectado todo el tiempo?
Funciona SETI@home a traves de firewalls (o proxys )?
I downloaded the software but my computer doesn't know what to do with a .tar (or .hqx or .sit or .exe) file - what do I do?
Los gráficos no se mueven. ¿No se quemará mi pantalla?
Can I run this on as many machines as I like using the same SETI@home login?
¿Que pasa con las unidades que nunca son devueltas? ¿Se pierden para siempre?
¿Puedo usar un PC sin conexion a Internet?
¿Puedo usar un PC que se conecte rara vez?
If you don't get a result back from one PC how long does the server wait until sending the same data out again?
How can I return my results but not get another work unit from the servers?
According to your stats page platform X is running Y times faster than my platform! Why?
What happened to the gaussian information display in the new Mac and Windows clients? Are the clients still looking for gaussians?
I have SETI@home set to run as my screen saver, but it keeps getting interrupted right after it starts running. What's going on?
How do I change my login address/user info?
Is the Windows screensaver password protected?
SETI@home uses 90% of the time on two CPUs.
Why does it do this if it's not multithreaded?
My computer says "file open failed in state.txt." Why?
¿Acepta SETI@home autentificación proxy ?
I am having trouble connecting over the Internet. What do these
error numbers mean?
When I returned my results and got a new work unit, why were the "Data
units completed" and "Total computer time" values not updated?
Are there versions of SETI@home for parallel systems
such as Beowulf or multiprocessors?
¿Habrá una versión para Windows 3.x?
¿Hay alguna versión que funcione como servicio NT?
¿Como puedo ejecutar SETI@home como servicio NT?
Encuentro muchas copias de state.sah y key.sah en mi computador. ¿Que pasa?
¿Puedo ejecutar SETI@home mientras uso un salvapantallas diferente?
Intento acceder a mi cuenta, pero he perdido la contraseña. La dirección de e-mail que use para registrarme ya no es válida.¿Existe alguna manera de tener acceso a mi cuenta?
¿Que pasará si se detecta una señal extraterrestre?
¿Si detecto una señal con mi PC me será reconocida?
Dicen que SETI@home funcionara durante 2 años. ¿Porque no sigue indefinidamente?
If you find a signal, how will you decode the information in it?
Si encuentran una señal, ¿Como decodificarán la información ?
How is data collected from the telescope and transmitted to other machines for analysis?
¿Harán fragmentos más grande de datos para los computadores más veloces?
What sorts of signals are being analyzed, and what form does the signal analysis take?
How will the results of the calculations be merged again?
¿Tienen algun sistema de seguridad que evite el envio de una interpretación "falsa" de datos, enmascarado como una señal extraterrestre?.
¿Que hacen para prevenir que alguien manipule el programa y envie datos falsos que se puedan interpretar como señales extraterrestres?
Parece que hay tanta gente apuntándose que no siempre tendrán suficientes datos de Arecibo para todos los usuarios. ¿Que pasará si esto sucede?
Will running SETI@home overload or burn out my CPU?
Why does only part of the SETI@home window appears on my screen?
How can I make SETI@home run as fast as possible?
If I turn off my computer while SETI@home is running, will it lose any data?
Why is curve fitting done for some FFTs and not others?
Why do some work units take very little time to complete?
Why did the progress bar suddenly jump to 100% only part way through the analysis?
Why is there so much variability in workunit completion time with version 3.x?
| slewrate | angle_range | 128K | 64K | 32K | 16K | 8K | 4K | 2K | 1K | 512 | 256 | 128 | 64 | 32 | 16 | 8 |
| ------ | -------- | 0.075 | 0.149 | 0.298 | 0.596 | 1.192 | 2.384 | 4.768 | 9.537 | 19.07 | 38.15 | 76.29 | 152.59 | 305.18 | 610.35 | 1220.70 |
| 0.000000 | 0.000000 | --- | --T | --T | --T | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | --T | --T |
| 0.001000 | 0.107374 | --- | --- | --T | --T | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | --T | --T |
| 0.002000 | 0.214748 | --- | --- | --- | --T | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | --T |
| 0.003000 | 0.322123 | --- | --- | --- | G-T | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT |
| 0.004000 | 0.429497 | --- | --- | --- | G-- | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT |
| 0.005000 | 0.536871 | --- | --- | --- | G-- | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT |
| 0.006000 | 0.644246 | --- | --- | --- | G-- | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT |
| 0.007000 | 0.751620 | --- | --- | --- | G-- | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT |
| 0.008000 | 0.858994 | --- | --- | --- | G-- | G-- | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT |
| 0.009000 | 0.966368 | --- | --- | --- | G-- | G-- | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT | GPT |
| 0.011000 | 1.181117 | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.012000 | 1.288491 | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.013000 | 1.395865 | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.014000 | 1.503240 | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.015000 | 1.610614 | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.016000 | 1.717988 | --- | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.017000 | 1.825362 | --- | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.018000 | 1.932736 | --- | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.019000 | 2.040111 | --- | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
| 0.020000 | 2.147485 | --- | --- | --- | --- | --- | --- | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT | -PT |
Earth is polluting space with radio and television signals that might be detected by nearby advanced civilizations, but it would be difficult for such a civilization to discover these signals if they only have Earth's current level of technology (eg: if they have an Arecibo like telescope and SETI@home like search).
Early TV shows like I Love Lucy and Ed Sullivan left the earth about 40 years ago, so have gone out 40 light years, reaching several thousand nearby stars. But these signals are relatively weak and SETI@home is not likely to detect the equivalent of Earth type TV transmitters, even on the nearest stars.
Earth's strongest transmitters might be somewhat easier to detect, such as those emitted by military radars, or some radio telescopes. The Arecibo telescope transmits very powerful signals when it is used as a radar system to study planets, asteroids and the ionosphere. These radar signals are powerful enough to be detected 10,000 light years away by searches like SETI@home, except for three big caveats:
a) The Arecibo transmissions are in a very tight beam (they are not omnidirectional, like TV and military radar), so they only cover a very small part of the sky at once (about a millionth of the total sky). It's is unlikely another civilization will be within one of these narrow beams.
b) The Arecibo transmitter's oldest signals left Earth about 30 years ago, so have only travelled 30 light years.
c) SETI@home is not searching the band of frequencies that the Arecibo transmitters utilize (although our older SERENDIP III program did survey one of those bands).
Click on the SETI@home icon in the Menu Bar and select Launch.
First, select "Proxy Settings" from the menu and check that they are correct.
If that is not the problem, then try this: Set "Ask me before connecting" in the SETI@home Preferences. Manually tell your computer to dial the Internet. Then select "Connect Now" from the SETI@home menu while your computer is connected to the Internet. (To dial manually, use the OTPPP, Remote Acess or FreePPP control panel.)
If this solves your problem, your computer's Internet software may be incorrectly configured. Instructions for setting this up are given under How do I set up my Mac to connect automatically?.
Macintosh dial-up Internet software comes in 2 flavors, Open Transport and FreePPP. On OS 9, Open Transport is called "Remote Access". If you are using Open Transport (OTPPP or "Remote Access"), then:
1) Under the Apple menu, select Control Panels and PPP ("Remote Access" in OS 9). make sure it has the correct phone number of your ISP, login name and password. To connect unattended, you must have "Save password" set.
2) Press the "Options" button, then select the "Connection" tab. Set "Connect automatically ..." and "Disconnect if idle for xx minutes". Set the disconnect delay to whatever number you wish.
3) You may also set the "prompt every xx minutes" checkbox if you wish. If the computer is unattended, so there is no response to the reminder, it will go ahead and disconnect after a few minutes.
If you are using FreePPP, then:
1) Find and open the FreePPP Setup application. Select the "General" tab.
2) Set "Allow applications to open connection" and "Disconnect if idle for xx minutes". Set the disconnect delay to whatever number you wish.
These are disabled while SETI@home is transferring data over the Internet, as they could interfere with the transfer.
Yes. Move the SETI@home icon out of the System Folder : Control Panels folder, to another location (such as the desktop), and restart your Macintosh. You can run SETI@home as a stand-alone application whenever you wish. But if you have another screensaver installed, SETI@home will run very slowly when the other screensaver is active, and the other screensavers animation may be sluggish or jerky.
Response to user input may be a bit sluggish on Macintosh models with slower processors (prior to G3), or with less than 32MB of physical RAM. You may sometimes need to hold the mouse button over the Menu Bar for a few seconds before getting a response.
SETI@home will not launch if another application has a modal dialog frontmost. The Standard File (Open and Save) dialogs are examples of modal dialogs. You must dismiss the modal dialog for SETI@home to launch.
Different portions of the same work unit can vary greatly in speed. If progress seems to freeze, be patient and let it run overnight. It may have gotten past the slow spot by then.
Here are some suggestions:
Dial-up Internet software comes in 2 flavors, Open Transport and FreePPP. If you are using Open Transport (OTPPP), then:
1) Under the Apple menu, select Control Panels and PPP. make sure it has the correct phone number of your ISP, login name and password. To connect unattended, you must have "Save password" set.
2) Press the "Options" button, then select the "Connection" tab. Set "Connect automatically ..." and "Disconnect if idle for xx minutes. Set the disconnect delay to whatever number you wish. 10 minutes is a good value.
3) You may also set the "prompte every xx minutes" checkbox if you wish. If the computer is unattended, so there is no response to the reminder, it will go ahead and disconnect after a few minutes.
If you are using FreePPP, then:
1) Find and open the FreePPP Setup application. Select the "General" tab. (If you don't see the "General" tab, click the small triangle in the lower left corner.)
2) Set "Allow applications ot open connection" and "Disconnect if idle for xx minutes". Set the disconnect delay to whatever number you wish. 10 minutes is a good value.
1) From the Start button, select "Settings" and then "Control Panels". Open the "Internet Options" Control Panel.
2) Select the "Connections" tab. Make sure the desired "Dial-up networking" selection is set as the default. (The set default button will be grayed out if you select the current default in the list.)
3) Set "Always dial my default connection".
4) Select the correct "Dial-up networking" from the list, and click on the "Settings..." button.
5) Another dialog box "xxxx Settings" appears. Press the "Advanced" button.
6) The "Advanced Dial-Up" dialog will appear. Set "Disconnect if idle for xx minutes" Set the disconnect delay to whatever number you wish. If you wish, you may also set "Disconnect when conection may be no longer needed.
If you set "Ask me before connecting" in the Preferences dialog, SETI@home will display more detailed information for many errors.
First, select "Proxy Settings" from the menu and check that they are correct.
If that is not the problem, then try this: Set "Ask me before connecting" in the SETI@home Preferences. Manually tell your computer to dial the Internet. Then select "Connect Now" from the SETI@home menu while your computer is connected to the Internet. (To dial manually, select Start -> Programs -> Accessories -> Dial-Up Networking, and double-click the desired connection.) If this solves your problem, your computer's "Internet Options" control panel may be incorrectly configured. Instructions for setting this up are given under How do I set up my computer to connect automatically?.
If your PC does not have a relatively recent version of Internet Explorer, you may not have the software needed for SETI@home to dial your modem. IE versions 4 and later install the needed software; we have not tested with older versions of IE. The needed file is c:\WINDOWS\SYSTEM\wininet.dll.
For Windows 95 and 98, do the following steps:
1) From the Start button, select "Settings" and then "Control
Panels". Open the "Internet Options" Control Panel.
2) Select the "Connections" tab. Make sure the desired "Dial-up
networking" selection is set as the default. (The set default
button will be grayed out if you select the current default in the
list.)
3) Set "Always dial my default connection".
4) Select the correct "Dial-up networking" from the list, and click
on the "Settings..." button.
5) Another dialog box "xxxx Settings" appears. Press the
"Advanced" button.
6) The "Advanced Dial-Up" dialog will appear. Set "Disconnect if
idle for xx minutes" Set the disconnect delay to whatever number
you wish. If you wish, you may also set "Disconnect when conection
may be no longer needed."
7) Close the "Internet Options" Control Panel.
8) Double-click on "My Computer", and then on "Dial-Up Networking".
Double-click on the default "Dial-up networking" icon. Make sure
the "Save password" box is checked. If not, check it and click on
"Connect", then "Cancel". Close the dialog.
For Windows NT do this:
1) Click Start, point to Programs, point to Accessories, and then
click Dial-Up Networking.
2) Click More, and then click User preferences.
3) In the Enable Auto-Dial By Location dialog box, select each
location for which you want the automatic dialing feature to
operate.
4) Click OK and then restart the computer.
No. Due to our new security measures to prevent falsified results, if a work unit has been partly completed by a different version of SETI@home, the progress will be reset to zero and the work unit will be processed from the beginning.
After each pass over the data, SETI@home does a preliminary check to see if the data's properties indicate a possible gaussian curve. If not, it saves time by skipping the gaussian analysis. For some work units (those with slow slew rates), no gaussian fit calculations are done for the entire work unit, so this area of the display remains empty.
There are several possibilities. If you have SETI@home set to connect automatically to the Internet, it may have returned the result and gotten a new work unit. (If a work unit has too much radio interference or RFI, then SETI@home may request a new work unit much sooner than usual.)
If SETI@home's processing was interrupted abnormally by
a system error or power interruption, its output files
may have been corrupted. In this case, SETI@home will
restart the work unit from zero automatically.
If you're having trouble connecting with password protection through Microsoft Proxy Server, check out Proxomitron: http://members.tripod.com/Proxomitron/.
Please be aware that Proxomitron is third party software, and therefore out of SETI@home control, but it has been recommended by various users including Nick.Roux@Bigfoot.com who posted these cookbook instructions on the sci.astro.seti newsgroup (thanks, Nick!):
1. Download Proxomitron (at http://members.tripod.com/Proxomitron/) and install it.
2. Go to 'Headers", find 'Proxy-Authorization', select 'In' and 'Out' and click on 'Edit'. In the 'Replacement Text' field enter 'basic user:password' replacing user and password with your userid and password for the your MS Proxy server. Highlight user:password and rightclick on it. Select 'Mime Encode', 'Encode String'. The 'Replacement text' field should now look something like 'basic dXNlcjpwYXNzd29yZA=='
3. Click OK, OK
4. Click on 'Proxy' and add the name:port of your MS Proxy Click OK
5. Select the 'Use Remote Proxy' Checkbox Save your changes.
6. In S@H select Settings/Proxy Server and add 'localhost', port 8080 as your proxy.
Now Proxomitron will automatically sign on to the MS Proxy.
As of yet, there are no plans to optimize the SETI@home client for any particular platform or processor. Future versions of the client may be optimized, but there are no plans for doing so in the immediate future.
No. The SETI@home installer automatically detects old versions and performs the necessary adjustments.
Yes. Not in 3.0, but in a later version.
Copyright ©2000 SETI@home