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Search: Posts Made By: kriesel
Forum: Factoring 2022-06-15, 13:19
Replies: 68
Views: 2,690
Posted By kriesel
Dunno, but to summarize a PM conversation with...

Dunno, but to summarize a PM conversation with Gordon, after I was able to run gmp-ecm with memory usage > 19G on Win7 (both stages on gmp-ecm), Gordon was able to on his system too, so it may depend...
Forum: Factoring 2022-06-09, 18:45
Replies: 68
Views: 2,690
Posted By kriesel
Win 7 Pro SHOULD handle > 16GB process size;...

Win 7 Pro SHOULD handle > 16GB process size; maybe check your page file settings & size as a precaution, and state exactly what version of gmp-ecm you're running (ideally with download link), command...
Forum: Factoring 2022-06-09, 16:24
Replies: 68
Views: 2,690
Posted By kriesel
(NOTE: NONE of my posts re gmp-ecm should be...

(NOTE: NONE of my posts re gmp-ecm should be regarded as disparagement or complaint. Common in use of software is to report observations of unexpected behavior. Either a user error is discovered, or...
Forum: Factoring 2022-06-09, 00:18
Replies: 68
Views: 2,690
Posted By kriesel
Per this earlier post...

Per this earlier post (https://www.mersenneforum.org/showpost.php?p=607192&postcount=25), attempting to get timing for one t70 curve for M1277 (and veer back onto the original thread topic) I ran the...
Forum: Factoring 2022-06-08, 23:15
Replies: 68
Views: 2,690
Posted By kriesel
Per the man page link posted earlier, it appears...

Per the man page link posted earlier, it appears that of the listed gmp-ecm authors, Jim Fougeron has been most involved with input parsing, and so is likely the best qualified to make such changes....
Forum: Factoring 2022-06-08, 13:34
Replies: 68
Views: 2,690
Posted By kriesel
Good developers accept and act on valid feedback...

Good developers accept and act on valid feedback without requiring coding participation. Better developers seek feedback. George, Mihai, and Ernst are three examples that come to mind.
Forum: Factoring 2022-06-08, 01:21
Replies: 68
Views: 2,690
Posted By kriesel
It should not be necessary for users to do...

It should not be necessary for users to do repeated testing to determine what the documentation ought plainly state, and illustrate with examples. (I sure do miss DEC VAX VMS documentation quality....
Forum: Factoring 2022-06-08, 00:11
Replies: 68
Views: 2,690
Posted By kriesel
Please post an unaltered gmp-ecm readme.txt file...

Please post an unaltered gmp-ecm readme.txt file that contains such a thing, and quote the section containing it in the post. I've checked 3 versions now, and not found a one in any of them. That is,...
Forum: Factoring 2022-06-07, 23:23
Replies: 68
Views: 2,690
Posted By kriesel
Storm5510 gave very few command line examples to...

Storm5510 gave very few command line examples to go with his posts in this thread. In https://mersenneforum.org/showpost.php?p=607293&postcount=51 storm5510 gives a command line.
It does not use...
Forum: Factoring 2022-06-07, 18:14
Replies: 68
Views: 2,690
Posted By kriesel
I don't see much in the gmp-ecm readme.txt...

I don't see much in the gmp-ecm readme.txt (version from 2018) about specifying ranges (using an editor's search tool for "range", or repeated reading). I do see section 5 allowing a lot of...
Forum: Factoring 2022-06-07, 17:13
Replies: 68
Views: 2,690
Posted By kriesel
I see from a log of a gmp-ecm run I made...

I see from a log of a gmp-ecm run I made recently, that it can use larger sigma values than prime95;
one example is 11827627723206061481 which is ~1019.07 ~263.36, well above prime95's 253 ~1016...
Forum: Factoring 2022-06-07, 14:36
Replies: 68
Views: 2,690
Posted By kriesel
In a small number of test cases, I saw 2 of 10, 7...

In a small number of test cases, I saw 2 of 10, 7 of 10, or even 10 of 10 sigmas tried find a specific factor. Which seems to me very strong support for winning sigmas not being unique for a factor....
Forum: Factoring 2022-06-06, 22:50
Replies: 68
Views: 2,690
Posted By kriesel
(Edit time slot expired on my previous post...

(Edit time slot expired on my previous post (https://mersenneforum.org/showpost.php?p=607244&postcount=34))

A little experimentation with prime95 or whatever is handy can be enlightening. A...
Forum: Factoring 2022-06-06, 21:40
Replies: 68
Views: 2,690
Posted By kriesel
Selecting M199 for a test run that would require...

Selecting M199 for a test run that would require stage 2 in P-1; 10 separate 1-curve B1=50000, B2=4000000 runs, succeeded in 7 of 10:


ECM found a factor in curve #1, stage #1...
Forum: Factoring 2022-06-06, 19:14
Replies: 68
Views: 2,690
Posted By kriesel
As I think I understand it, very thinly: A...

As I think I understand it, very thinly:
A sigma corresponds to a curve which corresponds to a set of points in a field. How many possible sigmas and curves are there? (Many; enough that it is...
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