random questions about seti speed...

[ledzepp98]

ok, i have seti running on my fathers computer and my new laptop (as well as my own computer of course) and i am wondering why may fathers computer is faster than the laptop... he has:

p3-533 (obviously 133mhz fsb)
128megs rdram
win98se

the laptop is:
p3-750 (obviously 100mhz fsb)
256megs pc100 cas3
winME

they both have 256k full speed on-die cache. i'm using the cli version and seti driver. his computer takes about 9.5 hours (give or take a bit) and the laptop takes about 10.5 hours (give or take a bit). i have the laptop running of the ac plug so it is running at full speed (speed step is not kicking in). my questions are basically:
1) how does rdram compare with sdram in seti performance?
2) how big of a difference is there between the 133mhz fsb and 100mhz bus with seti?
3) should the ram difference, fsb difference, and i guess hd speed difference make up for a 200mhz+ defecit?

 

[DarkMajiq]

SETI is very bandwidth dependant, the 133MHz FSB makes a big difference. The RDRAM will also be a factor, it beats up on the PC100 CAS3. You might also want to check and see if there are other processes running on the laptop that might be slowing SETI down.

 

[ledzepp98]

i had a feeling that the bus speed was a factor and the pc100 cas3 hurts. there is no option in the bios to change it to cas2, nor would i bother trying since this is for work (software demos) and has to be stable (it's killing me that it has winME:disgust🙂. my room is a disaster area, but my computers are very tidy...no unnecessary crap running in the background or on startup. oh, well... it is what it is...

 

[Sukhoi]

Yep, the RDRAM and 133 MHz FSB is making the desktop that much faster. 🙂