Archives

April 2000

Weekend!
It’s the weekend again, which means that you either a) have more time to read articles, b) plan to drink alot of beer, c) have a real life. For those of us in the ‘a’ bracket, here’s a couple of good articles located over at Ace’s Hardware. The first is an excellent article covering cache performance and covers cache misses and memory latency. Alot of the article is definitely geared for gamers, but covers some interesting points, especially on page 3.� The second article is a continuation which goes into main system memory bandwidth and latency, and also talks about various memory and chipset types available. They’re both fairly in-depth, and have alot of interesting info, so you might find it worthwhile to have a good look at them. Buy best baby toothbrush. Monitor your child’s dental health.
Also, MSNBC has an article on the Seti project, which includes general info and background info, as well as a look into the future of the project. And for those who feel the need for ‘touchy feely news’ (whatever that might be), there’s also an interactive guide to Seti.� –Rat

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Speed Tips Updated
So, you think that your system is fully tweaked? Or are you looking for a new system, and want some general recommendations for hardware that will crunch Seti as fast as possible? Look no further! I’ve updated the Speed Tips page to reflect the current state of hardware and� Seti clients. And the best part is that when you’re done reading it, you can print the article up and use it to wrap fish!�
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New Results Table
Guru has been hard at work helping out the benchmarking page. The results of his effort is a cool new sortable results table. Not only is is much faster downloading than mine (It loses the overhead of the table formatting), but it’s resortable too! So instead of just time, you can sort by FSB speed, processor type, or whatever else you feel like. While it’s still in a rough form, the final version is looking to be much more useful (and manageable) than the old table.�
On a personal side note, Memnoch passed me the other day. Ouch. –Rat

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Mailing List
Kevin N. Carpenter has recently set up a mailing list for the team.� If your fix of stats, benchmarking, and the team thread just isn’t enuff, I advise you to give it a try!.� You can check it out here.� –zAmboni

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Weekly/Changes
I have updated the weekly stats, and also made a couple of changes with some of the graphs/charts.� Check out the stats news for more information! –zAmboni

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Stats Changes
I have proceeded with a change in focus of the Team Stats and Daily Team Stats pages.� Instead of looking at a bunch of teams behind us in the Club Team standings, I have decided to see how we are fairing compared to teams ahead of us.� Check out what is going on and maybe see some surprises :-).� Of course, drop by and check out the stats news page also!

A Gentle Reminder
If you have been experiencing some problems with he version 2.0 GUI or CLI SETI clients, they have come out with a version 2.4 of the clients.� If you are running the 2.0 clients fine, there is no absolute need to upgrade to the 2.4 client though.� There will be no forced upgrade to the 2.4 client.� Here is a list of the bug fixes contained in the 2.4 client:

• Fixed a version 2.0 client problem of crashing with a floating point exception on some work units. Not all v2.0 clients had this problem.
• Client is now silent to stdout during processing. Messages are displayed only at the beginning and end of work unit processing. To see ‘% done’ progress messages, run the client with the -verbose option.
• Less file rewrites of the state.sah file. At least one minute between state.sah file rewrites. Safer rewrites of all files to avoid mistaken restart of work unit processing.
• Countries list updated
• Client properly displays %100 done at end (with -verbose option)
• Updated proxy handling bugs. Client is now reported to work with Microsoft proxies

If you are still currently running any previous 1.x versions of the SETI client please note that the SETI servers will stop accepting results from some of these clients soon.� Take note of the cut-off dates, and download and install the version 2.4 clients before they cut-off dates.� –zAmboni

Here is a chart of the cut-off dates for the 1.x clients:�

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Whither Art Bell?
Dr. Xing pointed out a MSNBC article which says that Art Bell, the kooky radio show host, is going to retire his gig.� I am not sure how this is going to effect Team Art Bell though.� Most likely the SETI team will remain, but I have a feeling that their team will fall into mediocrity though.� Team Art Bell seems to have reached an “equilibrium”.� They add about 50 new members a week, but their work unit output has remained about the same for the last several months.� Without regular pimping from Art Bell himself, the team may start tailing off.� On the other hand, the program looks to be continued with another host.� If he/she pimps their team, then they may continue unabated.� Even if Team Art Bell doesn’t slow, Team Lamb Chop is still expected to pass them anywhere from 10/00 to 2/01, based on current estimates.� By that time we may also have passed both Microsoft and Intel!� ;-). –zAmboni

News…..
Ok….’bout time.� I am about to work on some actual team news check it out on the stats page

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Back Up!
Sorry for the site downtime.� Because an unstable server, the system admin has the site’s server at his home right now.� Over the weekend Austin, TX had some severe weather that knocked out power for parts of Sunday/Monday.� Hopefully the server problems will be fixed soon and it can be taken back downtown and places on the UPS with their other servers are on.

Updates Abound!
I have the weekly stuff up now…go check it out.� I will put up some news later on in the day, but I’m a tad too tired to do it now 😛

The Wonder Boy Strikes Again!
There are a couple of items of interest that the wonder boy Anand has put up over at Anandtech.� The first is a review of the new Celeron “Coppermine 128” offering from Intel.� Why is this of interest for SETI crunching?� Anand has put together a good explanation of the limitations of the 66MHz Front Side Bus that the new Celeron’s will be shipping at.� Included in this is the description of the relationship between memory bandwidth and the FSB, and how increasing your FSB, increases the memory bandwidth.� He includes some Benchmarks showing the relative contributions of� CPU speed and� memory bandwidth and different FSB settings.� This helps explain why with two CPUs at the same speed, the one running at a higher FSB will crunch work units faster than the one with the lower FSB.� Go check it out!

The other item is a PC133 RAM Roundup in which Anand again touches on the memory bandwidth/FSB relationship, but also gives some benchmarks on the effects of changing the your RAM timing from CAS 3 to CAS 2.� This helps explain the cut in SETI processing time just by switching to CAS 2 memory timing.�� –zAmboni

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