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James Heinrich 2012-12-23 23:12

[QUOTE=Axelsson;322442]How about putting the text in an FORM text edit element, that way you only need to click the text and press ctrl-A and ctrl-C to mark the text.[/QUOTE]Focusing the element and automatically selecting the text on page load with element.select() is trivial and takes care of "ctrl-A". It's the "ctrl-C" part that no longer works in modern browsers (it used to be a simple part of browser Javascript implementations, but that disappeared 5+ years ago for security reasons.

Chuck 2013-05-06 12:34

Largest 100 factors chart
 
I'd like to see a sortable "Date found" column added to the [B]Largest 100 Factors Found[/B] chart. When I get bumped down the list due to someone finding a larger factor, it would be nice to be able to see who that was.

This is really getting to be a rarified list — you don't even make the list now unless your factor is over 104 bits.

LaurV 2013-10-04 16:38

Hey Chris, can you pull in some 37M-38M exponents for LLDC? (and assign them to me, hehe)

Kracker talked me into it, and he is perfectly right, thinking about efficiency of LL-ing with clLucas, for which the 2097152 FFT is much faster comparing with other sizes near by ([U]double speed[/U] on our cards, compared to 1M9 FFT which would be the default for 30M expos). Therefore, a 30M test and a 37M test takes about the same time with clLucas, using this FFT (doing a 30M with the default FFT take double time!). So why not use clLucas at its max efficiency? As ~38M is the limit of the expos which can use this FFT, why not?

Now, I could pull the expos by myself from PrimeNet, but that way I won't get credit on GPU72, and this guy is out for my neck, you know... :razz:

chalsall 2013-10-04 16:46

[QUOTE=LaurV;355232]Now, I could pull the expos by myself from PrimeNet, but that way I won't get credit on GPU72, and this guy is out for my neck, you know... :razz:[/QUOTE]

LOL...

Certainly -- trivial to facilitate.

Could you give me an exact range you're interested in? Or, alternatively, the highest exponent you're interested in?

I would point out that many of these won't be TFed as far as is now appropriate. I'll bring in several of the very highest TFed I can find, plus several more at lower TF levels. Hopefully some of the DC TFer's will contribute some cycles to manage and "feed" this new "micro-wave". :smile:

LaurV 2013-10-04 17:14

You are my man, I knew it! I can do the proper TF by myself.

From here, the max exponent I would be interested would be around 38900000. Say that anything between 37M5 and 38M85 would be perfect, going higher the error is a bit extreme and I fear "resumes" with "increased" (and much slower) FFT.

[CODE]Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

e:\-99-Prime\clLucas>cll 37000000
Platform :Advanced Micro Devices, Inc.
Device 0 : Tahiti


start M37000000 fft length = 1966080
^C caught. Writing checkpoint.

e:\-99-Prime\clLucas>cll -c 100 -t 37000000
Platform :Advanced Micro Devices, Inc.
Device 0 : Tahiti


continuing work from a partial result M37000000 fft length = 1966080 iteration = 498
Iteration 500 M( 37000000 )C, 0x4b6379ed9a066ad9, n = 1966080, clLucas v1.01 err = 0.2344 (0:01 real, 1.6293 ms/iter, ETA 16:44:42)
Iteration 600 M( 37000000 )C, 0xde63e79aa67e8f91, n = 1966080, clLucas v1.01 err = 0.3125 (0:00 real, 8.9109 ms/iter, ETA 91:34:58)
Iteration 700 M( 37000000 )C, 0xac10c1595c4679d8, n = 1966080, clLucas v1.01 err = 0.3125 (0:00 real, 9.0032 ms/iter, ETA 92:31:49)
Iteration 800 M( 37000000 )C, 0x4c27ce026b9ae5da, n = 1966080, clLucas v1.01 err = 0.3438 (0:00 real, 8.8773 ms/iter, ETA 91:14:12)
err = 0.375, increasing n from 1966080

start M37000000 fft length = 2097152
Iteration 100 M( 37000000 )C, 0xe5d22ad7ff931756, n = 2097152, clLucas v1.01 err = 0.0625 (0:00 real, 5.9706 ms/iter, ETA 61:21:51)
Iteration 200 M( 37000000 )C, 0x3c3b3e3d7920401d, n = 2097152, clLucas v1.01 err = 0.0625 (0:01 real, 5.5693 ms/iter, ETA 57:14:24)
Iteration 300 M( 37000000 )C, 0x7d64ce0b69e906dc, n = 2097152, clLucas v1.01 err = 0.0625 (0:00 real, 5.7091 ms/iter, ETA 58:40:35)
Iteration 400 M( 37000000 )C, 0x1cd77766d6c06764, n = 2097152, clLucas v1.01 err = 0.0625 (0:01 real, 5.6013 ms/iter, ETA 57:34:05)
Iteration 500 M( 37000000 )C, 0x4b6379ed9a066ad9, n = 2097152, clLucas v1.01 err = 0.0625 (0:01 real, 5.5778 ms/iter, ETA 57:19:33)
^C caught. Writing checkpoint.

e:\-99-Prime\clLucas>cll -c 100 -t 39000000
Platform :Advanced Micro Devices, Inc.
Device 0 : Tahiti

start M39000000 fft length = 1966080
err = 0.46875, increasing n from 1966080

start M39000000 fft length = 2097152
Iteration 100 M( 39000000 )C, 0x9428aa08031269b9, n = 2097152, clLucas v1.01 err = 0.2422 (0:01 real, 5.8975 ms/iter, ETA 63:53:20)
Iteration 200 M( 39000000 )C, 0x554f712ca7404cb8, n = 2097152, clLucas v1.01 err = 0.2422 (0:00 real, 5.6646 ms/iter, ETA 61:21:57)
Iteration 300 M( 39000000 )C, 0x840a71e3cd509484, n = 2097152, clLucas ..........
Iteration 700 M( 39000000 )C, 0x50c87b4c1545a09c, n = 2097152, clLucas v1.01 err = 0.25 (0:00 real, 5.6653 ms/iter, ETA 61:22:23)
Iteration 800 M( 39000000 )C, 0xbf1da98c8579a5b9, n = 2097152, clLucas v1.01 err = 0.25 (0:01 real, 5.7615 ms/iter, ETA 62:24:54)
.................
Iteration 2300 M( 39000000 )C, 0xfe5b6160e4d53b21, n = 2097152, clLucas v1.01 err = 0.25 (0:01 real, 5.6537 ms/iter, ETA 61:14:41)
^C caught. Writing checkpoint.

e:\-99-Prime\clLucas>cll -c 100 -t 38500000
Platform :Advanced Micro Devices, Inc.
Device 0 : Tahiti

start M38500000 fft length = 1966080
err = 0.5, increasing n from 1966080

start M38500000 fft length = 2097152
Iteration 100 M( 38500000 )C, 0xf417504c714b0041, n = 2097152, clLucas v1.01 err = 0.1563 (0:00 real, 6.0322 ms/iter, ETA 64:30:37)
Iteration 200 M( 38500000 )C, 0x671e287d0342b172, n = 2097152, clLucas v1.01 err = 0.1563 (0:01 real, 5.6750 ms/iter, ETA 60:41:27)
^C caught. Writing checkpoint.

e:\-99-Prime\clLucas>cll -c 100 -t 38800000
Platform :Advanced Micro Devices, Inc.
Device 0 : Tahiti

start M38800000 fft length = 1966080
err = 0.5, increasing n from 1966080

start M38800000 fft length = 2097152
Iteration 100 M( 38800000 )C, 0x2ebd3da835145b3b, n = 2097152, clLucas v1.01 err = 0.2031 (0:01 real, 6.0696 ms/iter, ETA 65:24:58)
Iteration 200 M( 38800000 )C, 0x026e432efa7bf419, n = 2097152, clLucas v1.01 err = 0.2188 (0:00 real, 5.6810 ms/iter, ETA 61:13:41)
Iteration 300 M( 38800000 )C, 0x9d3433e16cdaf1f0, n = 2097152, clLucas v1.01 err = 0.2188 (0:00 real, 5.6626 ms/iter, ETA 61:01:47)
Iteration 400 M( 38800000 )C, 0x7cf749c542bddb06, n = 2097152, clLucas v1.01 err = 0.2188 (0:01 real, 5.9468 ms/iter, ETA 64:05:31)
^C caught. Writing checkpoint.

e:\-99-Prime\clLucas>cll -c 100 -t 38900000
Platform :Advanced Micro Devices, Inc.
Device 0 : Tahiti

start M38900000 fft length = 1966080
err = 0.5, increasing n from 1966080

start M38900000 fft length = 2097152
Iteration 100 M( 38900000 )C, 0x7814abe1baede2be, n = 2097152, clLucas v1.01 err = 0.2188 (0:01 real, 5.9974 ms/iter, ETA 64:48:18)
Iteration 200 M( 38900000 )C, 0xbafaf821a144eb63, n = 2097152, clLucas v1.01 err = 0.2344 (0:00 real, 5.6806 ms/iter, ETA 61:22:53)
Iteration 300 M( 38900000 )C, 0xea3715ed348d20bb, n = 2097152, clLucas v1.01 err = 0.25 (0:01 real, 5.7576 ms/iter, ETA 62:12:49)
..................
Iteration 1100 M( 38900000 )C, 0x42b675b01e56dfa1, n = 2097152, clLucas v1.01 err = 0.2813 (0:00 real, 5.7782 ms/iter, ETA 62:26:04)
Iteration 1200 M( 38900000 )C, 0xe232c10a5b0ac175, n = 2097152, clLucas v1.01 err = 0.2813 (0:01 real, 5.6548 ms/iter, ETA 61:06:05)
^C caught. Writing checkpoint.

e:\-99-Prime\clLucas>cll -c 100 -t 38850000
Platform :Advanced Micro Devices, Inc.
Device 0 : Tahiti

start M38850000 fft length = 1966080
err = 0.46875, increasing n from 1966080

start M38850000 fft length = 2097152
Iteration 100 M( 38850000 )C, 0x18cd7fe8785b025a, n = 2097152, clLucas v1.01 err = 0.1875 (0:01 real, 5.7970 ms/iter, ETA 62:33:33)
Iteration 200 M( 38850000 )C, 0x7321f59a23b709e2, n = 2097152, clLucas v1.01 err = 0.2188 (0:01 real, 5.7387 ms/iter, ETA 61:55:48)
Iteration 300 M( 38850000 )C, 0x953d6ed545c9f7d7, n = 2097152, clLucas v1.01 err = 0.2188 (0:00 real, 5.5454 ms/iter, ETA 59:50:35)
^C caught. Writing checkpoint.

e:\-99-Prime\clLucas>[/CODE]Kracker will be interested too, for sure (see the first part of the test above, for an idea of the speed difference)

edit: on the other hands, I just switched another computer (CPU work) to DC and I got a [URL="http://www.mersenne.org/report_exponent/?exp_lo=27645643&exp_hi=&B1=Get+status"]27M assignment[/URL]. I mean "legally", without any tricks nor any "preferential treatment", just pure luck, requested a DC and got a 27M. I thought the 27M range is already gone, for ages... Hehe, I did the honors and manually moved it into the worktodo.txt of a faster computer, but it will still take 5-6 days, because the queue in front of it.

chalsall 2013-10-04 18:16

[QUOTE=LaurV;355236]I can do the proper TF by myself.[/QUOTE]

OK. The work needed to facilitate this is underway.

Please feel free to do some TFing work in the 37.5M to 38.5M range (available from the standard DCTF form) in the precipitation of the DC work being exposed shortly... :smile:

An important question: based on [URL="http://www.mersenne.ca/cudalucas.php?model=13"]James' analysis[/URL], what in your mind is the proper TF level for this range (read: what are you comfortable doing?)? 71 or 72?

chalsall 2013-10-04 18:39

[QUOTE=LaurV;355236]edit: on the other hands, I just switched another computer (CPU work) to DC and I got a [URL="http://www.mersenne.org/report_exponent/?exp_lo=27645643&exp_hi=&B1=Get+status"]27M assignment[/URL]. I mean "legally", without any tricks nor any "preferential treatment", just pure luck, requested a DC and got a 27M. I thought the 27M range is already gone, for ages...[/QUOTE]

That still occasionally (although rarely) happens.

"Spidy" is at your service.... :smile:

kracker 2013-10-04 18:57

Thanks chalsall, LaurV.

I can do TF as well, if needed.

@LaurV: greater -c will be faster, gpu usage goes down a bit on checkpoint.

EDIT: "officially" rank 2 on DC! :razz:

EDIT2;
[quote]
Please feel free to do some TFing work in the 37.5M to 38.5M range (available from the standard DCTF form) in the precipitation of the DC work being exposed shortly... :smile:
[/quote]
Started to 70-71 bits.

chalsall 2013-10-06 19:39

[QUOTE=chalsall;355238]An important question: based on [URL="http://www.mersenne.ca/cudalucas.php?model=13"]James' analysis[/URL], what in your mind is the proper TF level for this range (read: what are you comfortable doing?)? 71 or 72?[/QUOTE]

OK, the work on GPU72 to facilitate this has been (mostly) completed... The system now watches for any DC candidates between 37.5M and 38.5M TFed to at least 72 "bits" and transfers them to "Anon" for assignment. These are currently available from the [URL="https://www.gpu72.com/account/getassignments/dc/"]DC Assignment form.[/URL]. Just set the "Optional Range" low field to be at least 35M, and you should see them in the preview.

I will add an "Option Field" to the form for "GPU Optimized" which will do this automatically in a while (read: a day or so).

Also, I didn't hear back as to what the best TF level is: 71 or 72? Right now there are [URL="https://www.gpu72.com/reports/available/lldc/"]28 candidates[/URL] TFed to at least 72 bits ready for assignment.

And, If I may share... Sorry this took a bit longer than expected -- one of my business partners, my girlfriend, and I were "the hares" scheduled to set a [URL="http://www.barbadoshash.com/"]Barbados Hash House Harriers[/URL] run yesterday.

We set a wonderful 12 km run in St. Andrews (the hilliest part of Barbados) in the morning, and then the Universe decided to play a joke on us, and the sky opened up around noon with unbelievable amounts of rain (visibility dropped to less than 500 meters at one point).

Despite the fact that some parts of Barbados flooded (with vehicles literally being washed off the road and bridges overwhelmed), more than sixty people ventured out for the run. [URL="https://plus.google.com/photos/102753076471691256943/albums/5931681138724786321"]These pictures[/URL] might give you a bit of an idea. What isn't explicitly clear from the pictures is it continued to rain for the entire run and the "lime" afterwards -- Hashers, like GIMPers, can be strange people (see pic 80 for the three "hares", if you care)....

kracker 2013-10-06 19:46

(imo), I think 71 is fine, but hey.

In the winter time here, it can get [I]very [/I]crazy. Driving, you can hardly see ~25-50(approx) feet in front of you at times, quite dangerous.

Anyways, I am TF'ing to 71. :smile:

EDIT: No, I am not kidding.

kladner 2013-10-06 21:57

[QUOTE=chalsall;355429]What isn't explicitly clear from the pictures is it continued to rain for the entire run and the "lime" afterwards -- Hashers, like GIMPers, can be strange people [U][B](see pic 80 for the three "hares", if you care)[/B][/U]....[/QUOTE]

So, who's who? Inquiring minds.....


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