Forum: Miscellaneous Math
2020-12-11, 09:35
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2020-12-09, 17:05
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Replies: 61
Views: 13,152
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Forum: Software
2020-12-06, 16:36
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Replies: 9
Views: 1,337
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Forum: Software
2020-12-05, 16:50
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Replies: 9
Views: 1,337
mprime version 30.3b6.
uname -a gives ...
mprime version 30.3b6.
uname -a gives
Linux dabler 5.4.60-gentoo-9 #1 SMP Thu Aug 27 12:07:40 CEST 2020 x86_64 AMD Ryzen Threadripper 2990WX 32-Core Processor AuthenticAMD GNU/Linux
and cat...
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Forum: Software
2020-12-04, 18:33
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Replies: 9
Views: 1,337
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Forum: Software
2020-12-04, 17:31
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Replies: 9
Views: 1,337
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Forum: Software
2020-12-04, 12:06
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Replies: 9
Views: 1,337
mprime crashed
I just encountered the following behavior:
[Work thread Dec 4 12:51] Iteration: 102190000 / 109258157 [93.53%], ms/iter: 5.847, ETA: 11:28:49
[Work thread Dec 4 12:51] Hardware errors have...
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Forum: Miscellaneous Math
2020-07-02, 07:51
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Replies: 61
Views: 13,152
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Forum: Computer Science & Computational Number Theory
2020-05-21, 19:51
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Replies: 17
Views: 12,512
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Forum: Computer Science & Computational Number Theory
2020-05-21, 09:26
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Replies: 17
Views: 12,512
Just for fun, here...
Just for fun, here (https://link.springer.com/epdf/10.1007/s00224-020-09986-5) is another algorithm for fast multiplication of large integers, which is most likely only of theoretical interest. The...
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Forum: Miscellaneous Math
2019-10-14, 06:28
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Replies: 61
Views: 13,152
My project has evolved a lot in the last month....
My project has evolved a lot in the last month. Now I use modern (massively parallel) GPUs to verify the problem convergence. This brings an acceleration of more than two orders of magnitude. At this...
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Forum: Miscellaneous Math
2019-09-17, 11:28
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2019-09-16, 15:52
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Replies: 61
Views: 13,152
Any help still welcome
Any help with this distributed computation is still welcome. All you need to do is to compile the client from this GitHub repository (https://github.com/xbarin02/collatz). The source codes require a...
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Forum: Miscellaneous Math
2019-09-09, 06:14
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2019-09-08, 13:09
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2019-09-08, 07:35
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Replies: 61
Views: 13,152
Windows build
According to this post (https://stackoverflow.com/questions/7607502/sizeoflong-in-64-bit-c/39207744#39207744), you should be able to compile the code for 64-bit windows using Cygwin x86_64. Mingw-w64...
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Forum: Miscellaneous Math
2019-09-06, 12:16
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Replies: 61
Views: 13,152
Good point for an improvement. However, when I...
Good point for an improvement. However, when I chose this work unit (2^40), I estimated that modern computers would give it in about one hour.
One more question: When you said "Running 6 tasks at...
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Forum: Miscellaneous Math
2019-09-05, 17:13
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2019-09-05, 17:01
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Replies: 61
Views: 13,152
Hi Dylan,
The code requires 64-bit long int...
Hi Dylan,
The code requires 64-bit long int type, and GCC's __int128 extension. It should compile fine on 64-bit Linux machines. The size of a single work unit is 2^40 numbers (currently somewhere...
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Forum: Miscellaneous Math
2019-09-04, 16:14
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Replies: 61
Views: 13,152
Distributed computing project
I decided to start a distributed computing project. The aim is to raise the threshold below which the convergence of the Collatz problem is verified, particularly from 87 × 2^60 to 88 × 2^60. I keep...
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Forum: Miscellaneous Math
2019-08-26, 13:51
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2019-08-22, 17:22
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2019-08-22, 12:59
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Replies: 61
Views: 13,152
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Forum: Miscellaneous Math
2019-08-21, 17:17
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Replies: 61
Views: 13,152
Computational verification of Collatz problem
Would anyone be willing to implement this verification procedure (https://math.stackexchange.com/questions/3330085/computational-verification-of-collatz-problem) effectively (in any programming...
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Forum: Miscellaneous Math
2019-08-19, 12:12
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Replies: 61
Views: 13,152
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