multiple instances of SETI on a SUN Sever??

[Chintan]

If I run the text-based client of SETI on a SUN Server that has 4 processors, do I need to run multiple instances or will one instance use all four processors? If I need to run multiple instances, how do I set that up with Solaris version 2.6 and the text-based client of SETI?

Thanks

go TEAM!

 

[networkman]

I can't answer the 2nd part of your question, but as for the 1st part.. the S@H client is NOT SMP aware, so you'd need to run 4 seperate instances of the client; however, I'm not familiar with Solaris, so I can't help you. Perhaps a cross-post in the Operating Systems Forum would be advisable?

 

[Michael]

Generalizing from Linux to Solaris, you need to run one instance per processor and each must be in its own directory. No more than one "graphics aware" instance running at one time.

Michael

 

[ColinP]

I do it like this:-

Make 4 directories..

/usr/local/seti/seti1
/usr/local/seti/seti2
/usr/local/seti/seti3
/usr/local/seti/seti4

Copy the client to the first, rename it to setiathome and run it, this will generate all the user_info files etc. It will also get a WU. Copy everything to the other directories but delete the copied WUs.

Edit your crontab to add something like this:-

10 * * * * cd /usr/local/seti/seti1;./setiathome -proxy proxy -nice 19
20 * * * * cd /usr/local/seti/seti2;./setiathome -proxy proxy -nice 19
30 * * * * cd /usr/local/seti/seti3;./setiathome -proxy proxy -nice 19
40 * * * * cd /usr/local/seti/seti4;./setiathome -proxy proxy -nice 19

This will make sure that if anybody reboots the machine, or there are SETI problems, the processes will restart. The nice 19 runs it as a low priority so the users of the machine don't get upset.

later

Col.

 

[Robor]

The company I work for has a quad 450 Xeon DG/UX box. What kind of output could I expect if running 1 instance of the SETI client? The reason I'm asking is if it's worthwhile I could ask my boss if it would be okay to set it as a cron job in off hours.

Rob