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Search: Posts Made By: VBCurtis
Forum: Msieve 2021-05-12, 21:32
Replies: 46
Views: 24,628
Posted By VBCurtis
Well, no- in this case, that's the *benefit*, not...

Well, no- in this case, that's the *benefit*, not the problem. If my compiler is vastly faster than yours, these benchmarks can show you that maybe you could try compiling yourself / with my...
Forum: Msieve 2020-08-15, 15:58
Replies: 46
Views: 24,628
Posted By VBCurtis
It never occured to me that MPI - 2 nodes would...

It never occured to me that MPI - 2 nodes would be more than twice as fast, under any test. Neat! Now, if only ubuntu would fix MPI....
Forum: Msieve 2020-03-12, 23:36
Replies: 46
Views: 24,628
Posted By VBCurtis
Machine: Xeon 2680v3 Haswell generation...

Machine: Xeon 2680v3 Haswell generation 12x2.5ghz, 48GB memory on 4 channels DDR4 (4x4GB+4x8GB).

VBITS=128 on otherwise idle machine. ETA after 1% of job:
6-threaded 14hr 34 min
12-threads 8 hr...
Forum: Msieve 2020-03-10, 18:07
Replies: 46
Views: 24,628
Posted By VBCurtis
Xyzzy- While unlikely, it is possible that 20...

Xyzzy-
While unlikely, it is possible that 20 or 24 threads yields a bit of improvement. Hyperthreads don't always help on matrix solving, but since this is a benchmark thread it might be nice to...
Forum: Msieve 2020-02-18, 04:51
Replies: 46
Views: 24,628
Posted By VBCurtis
Target density is listed in the log just below...

Target density is listed in the log just below the polynomial, before msieve begins reading relations. If no density line is evident, then none was specified by the user and default density of 70...
Forum: Msieve 2020-02-18, 01:58
Replies: 46
Views: 24,628
Posted By VBCurtis
RichD- yes! I'd like to see how various...

RichD- yes! I'd like to see how various generations of hardware compare, regular desktop or Xeon-grade. This also helps others see if perhaps their msieve copy isn't as fast as it could be (e.g....
Forum: Msieve 2020-02-15, 23:29
Replies: 46
Views: 24,628
Posted By VBCurtis
Machine: HP Z620, dual 10-core Ivy Bridge Xeon...

Machine: HP Z620, dual 10-core Ivy Bridge Xeon @2.6ish ghz
64GB memory per socket
-nc1 was run with target-density 134. After remdups and adding freerels in, msieve states 99.3M unique relations....
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