Let's Optimize P-1 for low exponents. TL;DR in post #1. More in posts 60 and 61.

[VBCurtis]

Andrew-
Do you do any work for these projects yourself, or do you restrict yourself to just judging the work of others?

[Stef42]

I'll solely do exponents at 6.1M where takahashi's B2 is arguably too low. I check if any assignmentID is present, and if not I get myself assigned.

[cmpute]

Originally Posted by Stef42

I'll solely do exponents at 6.1M where takahashi's B2 is arguably too low. I check if any assignmentID is present, and if not I get myself assigned.

Ah.. It's kind of annoying to me, I was planning to switch to 6.1M range as long as I have finished either 0.04M or 0.05M, which is pretty close to finished right now (2 or 3 days to go).. Could you do me a favor to switch to other ranges? I've finished all stage 1 there.

[cmpute]

Originally Posted by cmpute

Ah.. It's kind of annoying to me, I was planning to switch to 6.1M range as long as I have finished either 0.04M or 0.05M, which is pretty close to finished right now (2 or 3 days to go).. Could you do me a favor to switch to other ranges? I've finished all stage 1 there.

I don't currently distinguish which ones were done by him, I just plan to clear that range.

[Stef42]

Alrighty, good luck finishing the range :)

As mentioned n PM, but this should in my opinion be a rule: assign your work.
It's entirely possible with p95, by making sure others see what is worked on.
First I didn't know about this topic and was using mersenne.ca to find exponents with poor P-1. What if someone else comes along using that method, not knowing this specific topic?

[harlee]

Originally Posted by Stef42

... this should in my opinion be a rule: assign your work.
It's entirely possible with p95, by making sure others see what is worked on...

Actually it appears that the Mersenne server will not register any P1 work (Pfactor or Pminus1) with known factors. I get the following when trying to "assign" my work:

Registering assignment: P-1 M4579151
PrimeNet error 40: No assignment
ra: P-1 factoring not required, exponent: 4579151

Registering assignment: P-1 M4374551
PrimeNet error 40: No assignment
ra: P-1 factoring not required, exponent: 4374551

Does anyone knows how to register these exponents or is this something that we will just have to live with?

[Andrew Usher]

That is correct. P-1 assignments on factored exponents are not recognised at all. Even on unfactored exponents in this range, they can only be gotten through PrimeNet and not the manual assignment page. (Neither is true for ECM, even though P-1 is usually the more efficient method).

[Stef42]

Originally Posted by harlee

Actually it appears that the Mersenne server will not register any P1 work (Pfactor or Pminus1) with known factors. I get the following when trying to "assign" my work:

Registering assignment: P-1 M4579151
PrimeNet error 40: No assignment
ra: P-1 factoring not required, exponent: 4579151

Registering assignment: P-1 M4374551
PrimeNet error 40: No assignment
ra: P-1 factoring not required, exponent: 4374551

Does anyone knows how to register these exponents or is this something that we will just have to live with?

True! It indeed doesn't work as soon as the exponent is already factored. Not a perfect system, agreed.

[congsz]

For my own study issues, I will pause my P-1 in 8.9M until May 20th, and will return to 8.9M after that.

[kruoli]

In the 100K-150K range, I am pausing right now. If anyone is inclined to takes this up right now, stage 1 is fully done and can be made available. If not, I will likely resume in a few weeks.

[tha]

8.3M completed. Now starting on 7.9M.