20190521, 13:01  #1706 
"Erick"
Apr 2019
Japan
2^{2} Posts 
Manual GPU assigments for Trial Factoring
Hello all my name is erick84mm, I have been crunching numbers as anonymous since 2012 and in 2017 I decided to join with my tag erick84mm. This is my second post ("Hello!")
Right now I'm trying to collaborate with Trial Factoring for 100M digit Mersenne numbers since I saw GIMPS is collecting funds and this can reduce the number of LL tests. I have a GPU to do that. It takes around 30 min per Mp in the ranges of 7576. I tried to obtain 1000 thousand of those exponents since is the work for the month. However, 2 things happened: 1. Instead of getting the exponents for 100M digits I got 1000 ECM exponents. (I did this twice), I manually deleted all those ECM exponents since I'm running mfaktc and I cannot do ECM. 2. I decreased the number of requested exponents to 10 and I was able to get 5 at first and 2 afterward. Now I cannot get any exponent anymore. The error is the following. Error code: 40 Error text: No assignment available for GPU trial factoring, cpu_id: #####, user_id ##### So I was wondering, am I doing something wrong? How can I obtain the exponents in that range? Should I just focus on doing the exponents of lower ranges as 180.000.000? Thank you very much for your answers in advance erick84mm Last fiddled with by erick84mm on 20190521 at 13:03 
20190521, 14:18  #1707  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
10885_{10} Posts 
Quote:


20190521, 21:32  #1708  
P90 years forever!
Aug 2002
Yeehaw, FL
2·5^{2}·163 Posts 
Quote:


20190521, 21:48  #1709  
If I May
"Chris Halsall"
Sep 2002
Barbados
10101100110100_{2} Posts 
Quote:
There has been little uptake on the assignments from GPU72. While current assignments will be observed and honored, no further assignments in 332M are available. 

20190522, 00:51  #1710  
"Erick"
Apr 2019
Japan
2^{2} Posts 
Quote:
When I request exponents in the GPU form this come up Error code: 40 Error text: No assignment available for GPU trial factoring, cpu_id: xxxxx, user_id = xxxxx I have attached the images of the error. 

20190522, 03:25  #1711 
P90 years forever!
Aug 2002
Yeehaw, FL
2×5^{2}×163 Posts 
You'll need to enter an optional exponent range  something like 332400000 to 332600000

20190522, 11:13  #1712 
"Erick"
Apr 2019
Japan
2^{2} Posts 
Now is working! Thank you! My confusion was due to the fact that I always get the normal CPU exponents just by selecting trial factoring and it provides an answer even when I don't set any interval. However, here is not the case! Thank you very much! Now I'm crunching numbers in the 100M interval! :D

20190522, 17:09  #1713  
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
7×1,051 Posts 
Quote:
Either some default values, or explanatory text, would be a helpful addition on that page. It does not seem very optional, if the page generates an error without a minimum and maximum exponent specified manually. Why not have the page provide defaults, that correspond to the category selected, eg 332192807 for minimum and ~360000000 for maximum for 100Mdigit, 93000000 for minimum and ~190000000 for first time LLs? Including the header link on https://www.mersenne.org/manual_assignment/ to the gpu_assignment page and vice versa was a welcome recent improvement. Last fiddled with by kriesel on 20190522 at 17:16 

20190522, 17:25  #1714 
"James Heinrich"
May 2004
exNorthern Ontario
3×23×59 Posts 

20190522, 18:55  #1715  
Serpentine Vermin Jar
Jul 2014
5×677 Posts 
Quote:
PRP=[assignment id],k,b,exponent,c,TF bits,prp base,prp type,[# of known factors] The assignment id is optional, as is the # of known factors on the end (for cofactor PRP testing) The base will either match any previous test, or 3 if no other PRP results are recorded. The type will also match any previous test, but if no previous test will done, the /workload page actually leaves it empty. I don't know if that's by design (so the client will decide what's appropriate based on what version of the program it is) or if we actually should be defaulting it to type=4. At the time this was all setup not too long ago, gpuowl and prime95 were, I think, using different bases and types so maybe that's why no default was picked there? But now, don't they both use base=3 and type=4 ? Or something like that? EDIT: by the way, for an exponent like the one mentioned that has *two* previous results with different types/bases, it pulls the values from the most recent one. Last fiddled with by Madpoo on 20190522 at 18:56 

20190522, 19:21  #1716  
Sep 2003
3×863 Posts 
Quote:
Also, I'm not sure if I'm correctly interpreting what kriesel wrote, but it seems like the worktodo file and the All CPUs section of https://www.mersenne.org/workload/ had conflicting information for the residue type for the same assignment. So the All CPUs section should instead accurately reflect the actual residue type for the assignment. 

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