More than one B2 bound per kn-pair?

[glennpat]

I added in the results from my other post along with my new results.

Intel dual core 6600 at 2.40Ghz with 2GB system memory.
Prime95 available memory set to 1 GB.

I added in the results from my other post along with my new results.

With B1=120,000 and B2=1,700,000, Stage 1 takes 1hr 53mins, and Stage 2 takes 1hr 26mins
With B1=120,000 and B2=1,800,000, Stage 1 takes 1hr 53mins, and Stage 2 takes 1hr 32mins.
With B1=120,000 and B2=1,850,000, Stage 1 takes 1hr 53mins, and Stage 2 takes 1hr 35mins.
With B1=120,000 and B2=1,900,000, Stage 1 takes 1hr 53mins, and Stage 2 takes 1hr 35mins
With B1=120,000 and B2=2,000,000, Stage 1 takes 1hr 52mins, and Stage 2 takes 1hr 40mins.
With B1=130,000 and B2=2,000,000, Stage 1 takes 2hr 02mins, and Stage 2 takes 1hr 39mins

[jasong]

I tried to set up my computer to do the tests. It finished overnight, but the results were really peculiar, I must have screwed things up somehow.

Should I try again, or just forget about it? I have the feeling that, while architectures could have different timings, Stage 1 and Stage 2 are proportionately the same when you're comparing the same B1/B2 values.

[Joe O]

I tried to set up my computer to do the tests. It finished overnight, but the results were really peculiar, I must have screwed things up somehow.

Should I try again, or just forget about it? I have the feeling that, while architectures could have different timings, Stage 1 and Stage 2 are proportionately the same when you're comparing the same B1/B2 values.

Stage1 might be proportional to the raw speed of the processor, but B2 is heavily dependent on memory. How much memory do you have on your machine? What is your processor speed?
Just run with B1=130,000 and B2=2,000,000.
Thanks.

[jasong]

Stage1 might be proportional to the raw speed of the processor, but B2 is heavily dependent on memory. How much memory do you have on your machine? What is your processor speed?
Just run with B1=130,000 and B2=2,000,000.
Thanks.

Apologies, I didn't see this until just now. It's running now.

Edit: I'm running it with maxmem=1200MB

[jasong]

With maxmem=1200MB Stage 1 takes 3hrs25.5min and Stage 2 takes 2hrs51min

[jasong]

Because of a message from vjs

dual-core Pentium-D 2.8GHz. 2Gig of RAM with 1200MB allocated to Prime95.

[Joe O]

Extrapolating from the timings you both have provided, it looks like:

B1=130,000 and B2=2,200,000

should be optimal.
Jasong, you should get 3 runs per day.
Glennpat, you should get 6 runs per day per core.