The final batch of subfield 4 is starting to rear its ugly head. This beast has 1.6M work units averaging about 2.5 hours a piece (on a 4GHz cpu).

I wonder if 7 hours 52 minutes 37 seconds run-time is a record. On a I 7 5960 X stock 3 GHz

I wonder if 7 hours 52 minutes 37 seconds run-time is a record. On a I 7 5960 X stock 3 GHz

Yeah, that's on the high side for a core i7 5960. But considering runtime only, I think there are some old pentium class machines out there that have the record (24+ hours).

I wonder if 7 hours 52 minutes 37 seconds run-time is a record. On a I 7 5960 X stock 3 GHz

Yeah, that's on the high side for a core i7 5960. But considering runtime only, I think there are some old pentium class machines out there that have the record (24+ hours).

That is at the point. I will contribute with my GPU in the coming weeks and maybe with my CPU too. This may be some time away though

The last of the WUs have been sent out. It will take 2 to 3 weeks for the final results to trickle in, but other than that subfield 4 is essentially complete. Good job everyone!

We are returning to subfield 3, to complete a few more tiers in that search.

It looks like this ugly head is getting to the end ))