Double-check request

Xyzzy · 2014-08-14, 01:45

We are running a long-term QA process on Ernst Mayer's Mlucas. Usually we run double-check work because that gives us immediate feedback as to the validity of our calculations.

However, occasionally we like to run a first-time test to test different FFTs and to push the program harder, by running it longer.

We currently have finished 67167619 and we are looking for someone to run a double-check on it so we can get feedback now rather than waiting a few years for the double-check wave to get into that area.

We have interim residues recorded for every 1,000,000 iterations in the text file attached to this post.

Thank you for your assistance!

srow7 · 2014-08-14, 06:37

I was going to volunteer,
but when I tried to get a manual assignment for it from primenet,
I get
Error code: 40
Error text: No assignment available meeting CPU, program code and work preference requirements, cpu_id: 952745, cpu # = 0, user_id = 127955

Any ideas on how I can get the assignment ?

LaurV · 2014-08-14, 06:41

I am your man. BRB with the ETA in few minutes.

ETA 43 hours (your former Titan, now you feel sorry that you sold it to me :P)

Xyzzy · 2014-08-14, 14:12

Quote:

ETA 43 hours (your former Titan, now you feel sorry that you sold it to me :P)

Every time we play Kerbal Space Program we miss that card. We bought a 750Ti to replace it. It works okay, but it ain't no Titan.

LaurV · 2014-08-14, 15:19

For your (early) peace of mind, the first 10M iterations are matching.

LaurV · 2014-08-16, 14:27

Done.

Code:

CUDALucas lines found: 1 
Processing result: M( 67167619 )C, 0x96a94488b6b4268d, offset = 11875, n = 4000K, CUDALucas v2.05 Beta 
LL test successfully completes double-check of M67167619 
CPU credit is 169.7848 GHz-days.

Xyzzy · 2014-08-16, 14:42

Xyzzy · 2014-09-02, 16:50

70885853

ewmayer · 2014-09-03, 00:34

Thanks to Mike for doing those -- no sure if he thought I was feeling lonely, or wanted me to be able to focus of development/debug without having to worry about doing long-run QA as well.

(I do 24/7/365 big runs on my Haswell, but that is with the code in Fermat-number run mode. No other high-end hardware in my little "farm", which is really more akin to a small urban gardening plot than a farm.)

LaurV · 2014-09-03, 01:59

Quote:

Originally Posted by Xyzzy

70885853

If starting it in about 40 hours (and finishing it about the mid of next week) is not too late, than it will be mine, again.

Xyzzy · 2014-09-03, 02:34

No rush!

Thanks!

2014-08-14, 06:41	#3
LaurV Romulan Interpreter Jun 2011 Thailand 7·1,373 Posts	I am your man. BRB with the ETA in few minutes. ETA 43 hours (your former Titan, now you feel sorry that you sold it to me :P) Last fiddled with by LaurV on 2014-08-14 at 06:47

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2014-08-14, 06:37	#2
srow7 Jul 2014 52₁₀ Posts	I was going to volunteer, but when I tried to get a manual assignment for it from primenet, I get Error code: 40 Error text: No assignment available meeting CPU, program code and work preference requirements, cpu_id: 952745, cpu # = 0, user_id = 127955 Any ideas on how I can get the assignment ?

2014-08-14, 15:19	#5
LaurV Romulan Interpreter Jun 2011 Thailand 7·1,373 Posts	For your (early) peace of mind, the first 10M iterations are matching.

2014-08-16, 14:42	#7
Xyzzy "Mike" Aug 2002 8224₁₀ Posts

2014-09-03, 00:34	#9
ewmayer ∂²ω=0 Sep 2002 República de California 103·113 Posts	Thanks to Mike for doing those -- no sure if he thought I was feeling lonely, or wanted me to be able to focus of development/debug without having to worry about doing long-run QA as well. (I do 24/7/365 big runs on my Haswell, but that is with the code in Fermat-number run mode. No other high-end hardware in my little "farm", which is really more akin to a small urban gardening plot than a farm.)

2014-09-03, 02:34	#11
Xyzzy "Mike" Aug 2002 2⁵×257 Posts	No rush! Thanks!