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Search: Posts Made By: debrouxl
Forum: Operation Kibibit 2013-02-17, 15:48
Replies: 134
Views: 44,975
Posted By debrouxl
I'm curious: while 35000 core-years are quite a...

I'm curious: while 35000 core-years are quite a bit easier to find in 2013-2016 than they used to be in 2006-2009, are there enough cores on Grid5000, and other public research grids in other...
Forum: Operation Kibibit 2013-02-08, 07:55
Replies: 134
Views: 44,975
Posted By debrouxl
The three best polys, in batch 1 (processed by...

The three best polys, in batch 1 (processed by the Xeon E3-1230 with 8 processes in ~29h wall clock time, 7 of the 8 processes finished at 16-17h) are
# norm 6.453437e-20 alpha -12.047099 e...
Forum: Operation Kibibit 2013-02-06, 18:55
Replies: 134
Views: 44,975
Posted By debrouxl
Size optimization finished on batch 1 (nearly 48h...

Size optimization finished on batch 1 (nearly 48h wall-clock time for 4 processes on Xeon E3-1230, 2 processes finished ~30' earlier) and batch 8 (~44h30 wall clock time for 8 processes on FX-8150; 6...
Forum: Operation Kibibit 2013-02-04, 19:36
Replies: 134
Views: 44,975
Posted By debrouxl
Taking batch 8 as well, I'll try to run it on 8...

Taking batch 8 as well, I'll try to run it on 8 cores of FX-8150.
Forum: Operation Kibibit 2013-02-03, 19:33
Replies: 134
Views: 44,975
Posted By debrouxl
I can use 4 hyperthreads of the usual Xeon...

I can use 4 hyperthreads of the usual Xeon E3-1230 through MPI-patched root optimization.
Forum: Operation Kibibit 2013-01-11, 07:38
Replies: 134
Views: 44,975
Posted By debrouxl
Indeed, firejuggler, unless it's for testing...

Indeed, firejuggler, unless it's for testing purposes (e.g. the MPI patch), as ~99% of the size-optimized hits have no chance of producing a good full polynomial (whatever the size of the number to...
Forum: Operation Kibibit 2013-01-07, 19:10
Replies: 134
Views: 44,975
Posted By debrouxl
I've run size optimization on my latest 40197...

I've run size optimization on my latest 40197 hits (a number of "line optimization failed" messages), and I'm now running root optimization in ascending order of stage 1 norm (e+33 and e+34 values,...
Forum: Operation Kibibit 2013-01-07, 07:21
Replies: 134
Views: 44,975
Posted By debrouxl
40197 new stage 1 hits, most of them generated by...

40197 new stage 1 hits, most of them generated by GPU msieve on my GT540M, and the rest by MPI-patched CPU msieve.
Forum: Operation Kibibit 2013-01-02, 18:43
Replies: 134
Views: 44,975
Posted By debrouxl
11752 new stage 1 hits with norm 2e33, produced...

11752 new stage 1 hits with norm 2e33, produced by MPI-patched CPU msieve.
Forum: Operation Kibibit 2013-01-01, 08:51
Replies: 134
Views: 44,975
Posted By debrouxl
By tomorrow, I'll have another dozen thousand CPU...

By tomorrow, I'll have another dozen thousand CPU stage 1 hits (norm 2e33) from MPI msieve.

And yeah, we're probably around 10M hits now :smile:
Forum: Operation Kibibit 2012-12-28, 07:20
Replies: 134
Views: 44,975
Posted By debrouxl
I had a Xeon E3-1230 spend: * more than a...

I had a Xeon E3-1230 spend:
* more than a CPU-month on `msieve -np1` with norm 2e33, producing 13705 hits (attached) - I still can't use my GPU at the moment;
* a negligible amount of time on...
Forum: Operation Kibibit 2012-12-15, 14:05
Replies: 134
Views: 44,975
Posted By debrouxl
Amusingly, that's what I had just done locally,...

Amusingly, that's what I had just done locally, by replacing #ifdef HAVE_MPI by #if 0 in the hunk modifying gnfs/poly/poly.c :smile:
Forum: Operation Kibibit 2012-12-14, 21:08
Replies: 134
Views: 44,975
Posted By debrouxl
firejuggler: your best poly isn't good, it has...

firejuggler: your best poly isn't good, it has pretty low E value :wink:

jasonp:

Meh.


Indeed.
Several weeks ago, for factoring a 512-bit RSA key under a "tight" deadline (well, I hadn't...
Forum: Operation Kibibit 2012-12-14, 16:26
Replies: 134
Views: 44,975
Posted By debrouxl
For the purposes of generating several hits with...

For the purposes of generating several hits with CPUs (as I can't currently use my GPU...) more quickly, I resurrected poily's MPI polsel patch, from...
Forum: Operation Kibibit 2012-11-17, 20:35
Replies: 134
Views: 44,975
Posted By debrouxl
BOINC wrapper integration would enable us to...

BOINC wrapper integration would enable us to explode the CPU+GPU power working on polynomial selection for RSA-896. I should dig again into my mailbox for the discussions about that, though I don't...
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