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Old 2014-08-14, 01:45   #1
Xyzzy
 
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"Mike"
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Default Double-check request

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!

Attached Files
File Type: txt 67167619.txt (10.3 KB, 147 views)
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Old 2014-08-14, 06:37   #2
srow7
 
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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 ?
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Old 2014-08-14, 06:41   #3
LaurV
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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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Old 2014-08-14, 14:12   #4
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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.
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Old 2014-08-14, 15:19   #5
LaurV
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For your (early) peace of mind, the first 10M iterations are matching.
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Old 2014-08-16, 14:27   #6
LaurV
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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.

Last fiddled with by LaurV on 2014-08-16 at 14:28
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Old 2014-08-16, 14:42   #7
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Old 2014-09-02, 16:50   #8
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70885853

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Old 2014-09-03, 00:34   #9
ewmayer
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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.)
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Old 2014-09-03, 01:59   #10
LaurV
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Quote:
Originally Posted by Xyzzy View Post
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.
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Old 2014-09-03, 02:34   #11
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No rush!

Thanks!

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