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-   -   Msieve 1.44 feedback (https://www.mersenneforum.org/showthread.php?t=13067)

scalabis 2010-03-29 21:59

Hi Batalov!

Great utility, i never heard of ...

Just downloaded it.

Thanks a lot.

Regards,
scalabis

jasonp 2010-03-29 23:44

Sysinternals was renowned for very cool system-level windows stuff. I'm also fond of TaskInfo2000 (the 2002-era version, which was freeware); it gives enormous amounts of information on a running system, including things like open files by process.

scalabis 2010-03-30 09:12

[quote=jasonp;210010]Sysinternals was renowned for very cool system-level windows stuff. I'm also fond of TaskInfo2000 (the 2002-era version, which was freeware); it gives enormous amounts of information on a running system, including things like open files by process.[/quote]

But Processexplorer is freeware ...

I mean, you can dowload it and use it without paying and without typical shareware messages ...

The only thing i noticed is that the help .chm file is not working ...

At least on a 64 bit Windows XP.

Regards,
scalabis

sleigher 2010-04-08 00:53

So I am finally starting the sqrt phase of the factorization.

Just curious how long I can expect this phase to take. 154 Digit number. It took about 79 hours to do the algebra phase.

--

Batalov 2010-04-08 03:03

You will get the factorization before the first answer... :rolleyes:

sleigher 2010-04-08 13:26

ok. I didn't know what to expect. Thanks.

sleigher 2010-04-08 14:39

Well it looks like something else is happening.

I am seeing this:

[code]
bash% ./msieve -nc3 -v
...
commencing square root phase
reading relations for dependency 1
read 2090616 cycles
cycles contain 5829738 unique relations
read 5829738 relations
multiplying 5829738 relations
[B]Segmentation fault[/B]
[/code]Something I did wrong? Anything I can do?

xilman 2010-04-08 17:25

[quote=sleigher;210981]Well it looks like something else is happening.

I am seeing this:

[code]
bash% ./msieve -nc3 -v
...
commencing square root phase
reading relations for dependency 1
read 2090616 cycles
cycles contain 5829738 unique relations
read 5829738 relations
multiplying 5829738 relations
[B]Segmentation fault[/B]
[/code]Something I did wrong? Anything I can do?[/quote]Join the club. That's exactly what I see on a RedHat system.

No solution, yet, though a few of us are trying to find one. The workaround which I use is to run a WinXP system in a virtual machine and complete the factorization there. The bug seems not to be activated in a Windoze environment.

Paul

sleigher 2010-04-08 17:56

So what files do I bring over to windows to complete the square root?

I can probably figure it out by time stamps.....

Batalov 2010-04-08 18:38

For the benefit of other [I]poor[/I] de[I]buggers[/I], let's cross-reference [URL="http://mersenneforum.org/showthread.php?t=12925"]the sqrt-crash thread here[/URL]. (you guys, of course, found it)

I never had a sqrt crash on me (out of hundreds, let's put a denominator), but it may support Tom's remark about compiler dependency: my gcc is 4.3.2.

xilman 2010-04-08 18:50

[quote=Batalov;211035]For the benefit of other [I]poor[/I] de[I]buggers[/I] ...[/quote]

[b]Debugger[/b] ([i]n[/i]): De guy who built de computer.

Paul


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