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-   -   P-1 factoring anyone? (https://www.mersenneforum.org/showthread.php?t=11101)

James Heinrich 2011-01-17 16:22

That readily show exponents in a certain range with specific TF limits, I was wondering if there was something similar where you could search by P-1 bounds?

lorgix 2011-01-17 16:35

I've suggested that before.

Now I know there's a minimum of two people who would appreciate that.

petrw1 2011-01-17 17:03

[QUOTE=James Heinrich;247001]How do you query PrimeNet to find exponents that have had P-1 on certain bounds, like this?[/QUOTE]

There is no direct query but it's not hard.

1. I used the "Factoring Effort" report
2. Picked a range: i.e. 45,000,000 to 45,999,999
3. Selected: "Print simple text report"
4. Get Data
5. Select the reprot data and Copy and Paste into EXCEL
6. Massage as necessary to break into columns
7. Sort as desired: i.e by B1 then B2.

James Heinrich 2011-01-17 17:10

Yeah, as I feared... you have to hammer the database, suck out all the data and toss out the 99% you don't want. Would be much nicer to filter it server-side. Not that it's hard to do as you describe, just seems unnecessary. :sad:

lycorn 2011-01-17 18:03

[QUOTE=petrw1;247020]There is no direct query but it's not hard.

1. I used the "Factoring Effort" report
2. Picked a range: i.e. 45,000,000 to 45,999,999
3. Selected: "Print simple text report"
4. Get Data
5. Select the reprot data and Copy and Paste into EXCEL
6. Massage as necessary to break into columns
7. Sort as desired: i.e by B1 then B2.[/QUOTE]

It´s even easier if you do steps 1. and 2. as described but then [B]don´t [/B]select the "simple text report" type (don´t forget to check the "Exclude currently assigned exponents", though).
Then you can directly sort the data on the web page itself, by clicking on the appropriate header (P-1 bound #1, for this matter). It is a fast way of spotting the low B1 bounds (or even no P-1 at all).

petrw1 2011-01-17 19:16

[QUOTE=lycorn;247032]It´s even easier if you do steps 1. and 2. as described but then [B]don´t [/B]select the "simple text report" type (don´t forget to check the "Exclude currently assigned exponents", though).
Then you can directly sort the data on the web page itself, by clicking on the appropriate header (P-1 bound #1, for this matter). It is a fast way of spotting the low B1 bounds (or even no P-1 at all).[/QUOTE]

Good point....

James Heinrich 2011-01-18 17:07

Would it make sense to leave the 655 bottom "producers" off this list? The ones who have 0.000GHz-days over 0 attempts with 0 successes?
[url]http://v5www.mersenne.org/report_top_500_P-1/[/url]

lorgix 2011-01-18 17:11

Yes, it would.

Prime95 2011-01-19 03:43

[QUOTE=James Heinrich;247206]Would it make sense to leave the 655 bottom "producers" off this list?[/QUOTE]

I'll try

sdbardwick 2011-01-19 05:10

Aww, my percentile rank is gonna plummet. :smile:

James Heinrich 2011-01-19 13:52

1 Attachment(s)
[QUOTE=James Heinrich;247011]That readily show exponents in a certain range with specific TF limits, I was wondering if there was something similar where you could search by P-1 bounds?[/QUOTE]Here's my formal request to George to add a couple more filters to [url]http://www.mersenne.org/report_factoring_effort/[/url] (similar to the attached screenshot)

The new fields for P-1 B1/B2 should filter such that a blank value is considered "ignore", and any non-blank value (including zero) would be filtered as the upper/lower limit for B1/B2 as appropriate. One additional thing I did not include on my sample, but might be interesting and useful would be a checkbox to only show results where B2==B1.

I also sketched in a limit for number of records. In most cases 1000 results is plenty (100 might even be fine for many cases) and it's less hammering on the servers. Obviously still cap it at some reasonable limit (I believe it's 50000 now?)


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