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Old 2020-03-03, 01:46   #78
swellman
 
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What’s our progress? I’ve thrown 8 cores into the pot - we can always use more sievers!

(Though the 24 Gb minimum memory requirement isn’t for everyone.)
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Old 2020-03-03, 03:06   #79
RichD
 
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Quote:
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(Though the 24 Gb minimum memory requirement isn’t for everyone.)
Can I dumb-down a Core-i5 client to say only use 2 cores and 12 GB? What would be the command line?
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Old 2020-03-03, 04:52   #80
VBCurtis
 
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The memory requirement is fixed by the siever size, not by the number of cores. If nobody else joins Sean and I, then we can consider running with A=31 rather than 32, which would reduce memory from ~18GB to ~9GB (same as C207 job from last summer, roughly). I want to wait on that a couple weeks, since these lowest Q values are most valuable to search with the bigger siever area; once we reach Q=10M it seems reasonable to allow folks to use A=31 and less memory. Yield will still be 3.5 or so with the smaller siever.

As of this morning, we're at around Q=6.2M, with 3.3M relations from this run. The lower lim's result in a bit lower yield, roughly 5.0 rather than 6.0.

We had about 3M relations from the first run before Greg edited the parameters, which I kept (but are separate from this run, so CADO isn't counting them).

I still have 30 threads on it, with 10 threads running an msieve matrix. I'm shopping for memory now for my home machine, which would allow me to add another 10ish faster threads.
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Old 2020-03-06, 17:46   #81
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How would one go about participating in this sieving? I have a Ryzen 5 3600 with 32 GB ram running Ubuntu.
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Old 2020-03-06, 19:35   #82
R.D. Silverman
 
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How would one go about participating in this sieving? I have a Ryzen 5 3600 with 32 GB ram running Ubuntu.
Patience, grasshopper.

Greg will start it fairly soon.
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Old 2020-03-06, 20:20   #83
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Quote:
Originally Posted by axn View Post
How would one go about participating in this sieving? I have a Ryzen 5 3600 with 32 GB ram running Ubuntu.
Quote:
Originally Posted by VBCurtis View Post
. . .
The usual address (same as C207 from last summer), port 44455.
. . .
. . . if VBCurtis is still running the CADO-NFS server.
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Old 2020-03-06, 21:12   #84
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Quote:
Originally Posted by R.D. Silverman View Post
Patience, grasshopper.

Greg will start it fairly soon.

NFS@Home is sieving 2,2158L, I have wus between Q=2225M to Q=2653M.
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Old 2020-03-06, 22:36   #85
VBCurtis
 
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Quote:
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. . . if VBCurtis is still running the CADO-NFS server.
I am; we have gathered just 7M relations so far, as only swellman and I have cores aimed at it. If axn needs the address for the server, he should PM me or swellman (both, really). It is not publicly listed to reduce the chance of nefarious targeting of the machine.
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Old 2020-03-07, 03:26   #86
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Quote:
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If axn needs the address for the server, he should PM me or swellman (both, really).
YGPM
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Old 2020-03-08, 18:27   #87
VBCurtis
 
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axn's R5 is responsible for 5 of the last 12 workunits submitted. I have 3 10-threaded processes running on Ivy Bridge, and swellman has an 8-threaded process occupying all of a HT-quad-core.

Axn's machine is running at roughly the speed of 25 Ivy Bridge Xeon (hyper)threads. Thanks for the boost!
We're at about 10M raw relations from the CADO portion of this job, with Q at 6.84M (started at 5M). That's a yield around 5.4; the smaller lim's adopted at Q=5.5M reduced yield by 20% or so, from ~6 to the high 4's.
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Old 2020-03-09, 01:53   #88
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Good to know!
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