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Old 2019-12-18, 06:06   #474
VBCurtis
 
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"Curtis"
Feb 2005
Riverside, CA

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Boom!
Code:
p75 factor: 275176422311615923415467241176974052178379752863007475188166300548927297521
Tue Dec 17 22:04:10 2019  p133 factor: 1215138400657554192398745795073755326065170349220688362258988896928749569143004170653462552733553129680079912685698796031031929842101
I reported these nowhere else; I trust y'all to pass 'em along to those who care.
Congrats to the Forum for quite a lengthy team task!! We'll get a new one going for 2020.
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Old 2019-12-18, 06:28   #475
wreck
 
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"Bo Chen"
Oct 2005
Wuhan,China

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Congratulations!
Could you attach the full msieve postprocessing log here?
I'm interested in the memory use, matrix size, relation count,
etc.

Last time when doing this postprocessing crash, I draw a small diagram
to visualize the filter process of msieve.
Attached Thumbnails
Click image for larger version

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Old 2019-12-18, 07:16   #476
SethTro
 
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"Seth"
Apr 2019

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Amazing!

I'm curious what the chance of finding a p75 factor during the ECM stage was.
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Old 2019-12-18, 08:00   #477
pinhodecarlos
 
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK

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Quote:
Originally Posted by VBCurtis View Post
Boom!
Code:
p75 factor: 275176422311615923415467241176974052178379752863007475188166300548927297521
Tue Dec 17 22:04:10 2019  p133 factor: 1215138400657554192398745795073755326065170349220688362258988896928749569143004170653462552733553129680079912685698796031031929842101
I reported these nowhere else; I trust y'all to pass 'em along to those who care.
Congrats to the Forum for quite a lengthy team task!! We'll get a new one going for 2020.
Please inform Sam. His email address can be found here: https://homes.cerias.purdue.edu/~ssw/cun/index.html

PS(have done it)

Last fiddled with by pinhodecarlos on 2019-12-18 at 08:23
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Old 2019-12-18, 09:58   #478
kurtb
 
"Beschorner Kurt"
Jul 2016
Germany

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Default 2,2330L is factored

congratulations on this extraordinary success!


Kurt
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Old 2019-12-18, 11:44   #479
vebis
 
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Oct 2015

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Quote:
Originally Posted by VBCurtis View Post
Boom!
Code:
p75 factor: 275176422311615923415467241176974052178379752863007475188166300548927297521
Tue Dec 17 22:04:10 2019  p133 factor: 1215138400657554192398745795073755326065170349220688362258988896928749569143004170653462552733553129680079912685698796031031929842101
I reported these nowhere else; I trust y'all to pass 'em along to those who care.
Congrats to the Forum for quite a lengthy team task!! We'll get a new one going for 2020.
Great work!
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Old 2019-12-18, 16:04   #480
R.D. Silverman
 
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Nov 2003

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Quote:
Originally Posted by vebis View Post
Great work!
Indeed. Very nicely done.

Let's crowdsource some funds to buy a large memory machine to help Greg with the
LA. Something like an HP840 with ~40 cores and 128G of memory should suffice.
( or perhaps even more memory)

We might be able to buy such a refurbished machine for a good price.

Although I am now retired, I will contribute to such a cause.
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Old 2019-12-19, 02:14   #481
RichD
 
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Sep 2008
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Quote:
Originally Posted by R.D. Silverman View Post
Let's crowdsource some funds to buy a large memory machine to help Greg with the
LA. Something like an HP840 with ~40 cores and 128G of memory should suffice.
( or perhaps even more memory)

We might be able to buy such a refurbished machine for a good price.

Although I am now retired, I will contribute to such a cause.
I think I know the perfect retirement gift.

While Bob is not post-processing for Greg he can enhance his software packages to include multi-threads and other improvements. To advance the factoring community to infinity and beyond...
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Old 2019-12-19, 02:19   #482
swellman
 
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Jun 2012

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Quote:
Originally Posted by R.D. Silverman View Post
Indeed. Very nicely done.

Let's crowdsource some funds to buy a large memory machine to help Greg with the
LA. Something like an HP840 with ~40 cores and 128G of memory should suffice.
( or perhaps even more memory)

We might be able to buy such a refurbished machine for a good price.

Although I am now retired, I will contribute to such a cause.
How much money do we need? ~$1000? What mechanism is best for this? I’ve never participated in a crowdsource effort, but I will kick in towards this goal.
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Old 2019-12-19, 08:47   #483
pinhodecarlos
 
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK

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Quote:
Originally Posted by swellman View Post
How much money do we need? ~$1000? What mechanism is best for this? I’ve never participated in a crowdsource effort, but I will kick in towards this goal.
It depends, I would say minimum of £2,000. .go here and play around a setup. https://www.bargainhardware.co.uk/re...ons/hp/hp-z840

My dilemma since I’ve moved to UK is to justify buying a refurbished computer from the above site or by a new machine, I believe the latter would be the best option (higher investment cost but more energy efficient). My only concern is regarding maintenance, not sure which ones has the lowest cost.

Last fiddled with by pinhodecarlos on 2019-12-19 at 08:59
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