S7

All 6 k's < 1M tested from n=30k to 50k.

primes found:
242334*7^33795+1
697464*7^49309+1

Results sent.

Status report
 

Base=10 (Sierpinski + Riesel) tested till n=520000

S30 complete to n=300K, no primes.

Results attached, base released.

R22 is complete to n=500K; nothing to report; base released.

Short update:

s17: just a little progress. n=790K
s19 is somewhere at n=43K at the moment, 915 k remaining.


By the way: I am thinking about buying a new machine. Does anyone have some information (benchmarks) of the AMD x6 1090T?
Or you think, it's better to wait now?

[quote=Xentar;225934]By the way: I am thinking about buying a new machine. Does anyone have some information (benchmarks) of the AMD x6 1090T?
Or you think, it's better to wait now?[/quote]
From what I've heard of the closely related 1055T, it's a very good buy--you get 6 cores for about the same price as 4 cores on an i5. While not quite as fast as the Intel per-core, it's much more competitive than the original Phenoms (which Gary has 6 of and has not been particularly impressed with). At any rate, the addition of two more cores vs. the i5 more than makes up for the per-core speed hit.

The 1090T is clocked a little higher than the 1055T and is $100 more. I would expect that with a decent cooler you could overclock a 1055T to approximate the speed of a 1090T yet save a load of money. Even without overclocking, I'd still go for the 1055T; my gut tells me that the difference in clock speed is not going to make enough of a difference in actual practice to be worth $100.

[quote=Xentar;225934]Short update:

s19 is somewhere at n=43K at the moment, 915 k remaining.[/quote]

I'll need the primes on S19 for n>=40K to update the testing limit.

Riesel base 30
 

Hi all,

I'll be taking some k's from riesel 30 from 140,000 to 200,000.
k = 239, 659, 2293, 3719

Willem.

Status report
 

Base=10 (Sierpinski + Riesel) tested till n=540000

Reserving R28 and S28 all k's to n=250K.

Sierp 12
 

Sierp 12, the last k, tested to n=600K. Continuing