Please run this msieve benchmark with your msieve version.

[url]http://www.mersenneforum.org/showpost.php?p=362039&postcount=13[/url]

Could some other process interfere with the msieve? Attached processes list.

I ran -nc on the test 100 digit composite again tho - it logged this:
[CODE]using block size 8192 and superblock size 786432 for processor cache size 8192 kB
commencing Lanczos iteration
memory use: 35.4 MB
linear algebra at 7.4%, ETA 0h 1m 163312 dimensions (7.4%, ETA 0h 1m)
linear algebra completed 161907 of 163312 dimensions (99.1%, ETA 0h 0m)
lanczos halted after 2580 iterations (dim = 163083)[/CODE]
then it crashed (msieve.exe has stopped working). If you can point me to where the crash logs are stored, I can put them here.

EDIT: I ran -nc again and it's going above 100% again. Currently at 500%.
EDIT2: Running that benchmark now.

I've never seen msieve exceed 100% on the matrix stage, so seems your msieve binary isn't working properly. I'd find another one from a different source, or download one built for a more generic architecture.

15 min for a quad-core to do the sieving step is about right, so the GGNFS binaries and factmsieve script are likely fine.

Hope the benchmark has been completed successfully.

Yep, got the factors from the benchmark:
[CODE]prp62 factor: 56705226558738617322827862743750795277295350027271122668092243
prp68 factor: 73608085926851965199193284432491192647997340345077698457673136684611[/CODE]
So I guess it was the binaries, gonna replace the msieve now and I will let you know how it goes tomorrow. Thanks.

Glad you got it working!

I would just like you to know that the msieve successfully found 2 primes.

Thanks to everyone who helped! This will make an interesting presentation for my class on how to crack RSA. I learned a lot. :smile:

If you end up doing a powerpoint or something similar, feel free to post it up! :smile:

The powerpoint will be in Slovenian, not English, so no one will be able to understand what's written on it :smile: I might make a blog or something about it in the near future tho :grin:

[QUOTE=Timic;478251]The powerpoint will be in Slovenian, not English, so no one will be able to understand what's written on it :smile: I might make a blog or something about it in the near future tho :grin:[/QUOTE]

Even the equations? Lol

[QUOTE=Timic;478123]Haha, nothing illegal, don't worry.[/QUOTE]

They all say that.

Well done :)