20220323, 20:46  #12 
"Ed Hall"
Dec 2009
Adirondack Mtns
2×13×181 Posts 
Thank you! This helps a bunch. I had started out using the values from the tune.c info, but I strayed into doubling values and such as I moved up to larger composites, instead of going back to the listed values. I will probably want to address 105+ and, therefore 3LP eventually, but for now I need to let this settle. I still need to add even more machines to the mix and see what happens.
The rels/sec is definitely going to be important. The two 4 thread machines are widely different and the processing shows it when they are both given the same siqsR. Would it be far off to consider the ratio between CPUs at one size to be similar to another size composite? 
20220323, 20:59  #13 
"Ben"
Feb 2007
5×727 Posts 

20220323, 22:35  #14 
"Ed Hall"
Dec 2009
Adirondack Mtns
1001001100010_{2} Posts 
I was able to calculate a pretty good balance for the original 4 machines and brought the execution time from the above 11:58 down to 8:18. I then was able to do the calculations to add five more machines and brought the time down to 6:52.
But, I'm definitely going to have to find a better way to do these balance calculations if I decide to make this a bigger set of machines and work with different sized composites. Thanks for all the help! 
20220324, 00:46  #15 
"Ed Hall"
Dec 2009
Adirondack Mtns
1001001100010_{2} Posts 
Just to add a comparison, I ran the 90 and 100 digit composites with CADONFS on the exact same machines and the composites were factored in 2:25 and 6:20, respectively.

20220325, 12:01  #16  
"Ed Hall"
Dec 2009
Adirondack Mtns
2×13×181 Posts 
Quote:
How hard would it be for me to learn what it takes to do this? Would it always take manual intervention? Would there be a gain over CADONFS/Msieve? A totally different question: My understanding is that sieving for S/GNFS is too memory intensive for efficient GPU use? Would SIQS be any more capable of being performed by GPU? 

20220325, 17:08  #17  
"Ben"
Feb 2007
E33_{16} Posts 
Quote:
SIQS is also pretty memory intensive at sizes that are interesting. Maybe it would be easier than NFS but that's not saying much. 

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