How fast would this machine crunch seti?

[PieDerro]

This is not some crazy supercomputer, but a meagre Pentium4 1.7GHz running on a (non-DDR ) i845 motherboard. The school I work at is getting 16 of these beasts in, and I'd like to know how much slower than their RDRAM counterparts these machines really are.

Also, there is a strong chance that I will be adding something like 30 more computers (in addition to these P4's) that are PIIIs of 600MHz and up within the next fortnight, provided I can get permission from the District Tech Director. If anyone could direct me to a pre-prepared letter that I could present to them illustrating the benefits of SETI to humanity, as well as the benefits of having the computers running at a contant temperature , please LMK.

Thanks guys

By the way, I lost about 4 PIII 800s for the next week as they are being formatted and re-imaged.

 

[her209]

If you are asking what the performance hit would be of a P4 running on SDRAM vs RDRAM, I would have to say that the SDRAM platform will defintely suffer due to the bandwidth bottleneck that SDRAM presents compared with RDRAM.

Yes, RDRAM was horrible on the i820 due to its latency problems even though its bandwidth looked promising. But with the P4, most of the latency problems have been concealed due to the RDRAM's high bandwidth capabilities. Even a P4-DDR solution would still be slower compared to P4-RDRAM solution. I don't know it would fare with the newer DDR bus frequencys PC2100+.

 

[PieDerro]

^bump^ cos i'd really like to know some time estimates

 

[Tarca]

Hey Pie check out this site.

Seti Bench marks

 

[medic]

Roughly 6 per day...

 

[UB]

How would SDRAM vs RDRAM have any impact on cpu calculations?

UB

 

[Evadman]

Seti is extreamly FSB and memory sensitive. FAster Memory = faster WU.

 

[RaySun2Be]

<How fast would this machine crunch seti?>

A heckuvalot faster than my P100! Or my PIII733s!

They will do very well. I would love to have 16 of those "meager" 1.7mhz PCs cracking for me. 1 of those does as much as my whole home fleet. :Q

So sure, they would crack faster with the memory, but they crack pretty fast as it is!

If you can assimilate them, I'm sure you will be pleased with your WU output!