20081025, 11:02  #1 
Oct 2007
3^{2}×11 Posts 
LLR benchmarks
I plan to buy a new computer sometime in the future and one aspect for me is how much money I have to spend for how much computing power, particularly for prime search.
Could you offer some benchmarks for LLR? For example the running time for megabit numbers on different systems. This would be a great help to assess various computers. 
20081025, 21:49  #2 
Sep 2004
101100001110_{2} Posts 
Q6600@2.9GHz, Win XP SP2, 2 GB DDR 800 MHz.
64494*2^1931114+1 is not prime. Time : 6472.051 sec. 64494*2^1931258+1 is not prime. Time : 6478.644 sec. 64494*2^1931906+1 is not prime. Time : 6473.942 sec. 64494*2^1932074+1 is not prime. Time : 6518.412 sec. 353*2^5470361 is not prime. Time : 324.228 sec. 305*2^6001521 is not prime. Time : 363.486 sec. 307*2^8001971 is not prime. Time : 708.644 sec. 307*2^9008171 is not prime. Time : 801.736 sec. 307*2^9993611 is not prime. Time : 943.789 sec. 
20081026, 04:00  #3 
Sep 2008
Kristiansand, Norway
1101111_{2} Posts 
NO mbit primes, but these are my stats at factory clock (2.4ghz) on a Q6600 with all cores in use;
777777*2^2686501 is not prime. Time : 154.774 sec. 777777*2^2686541 is not prime. Time : 154.821 sec. 777777*2^2686571 is not prime. Time : 154.877 sec. 169*2^9300291 is not prime. Time : 1024.461 sec. 187*2^9300291 is not prime. Time : 1024.483 sec. 217*2^9300291 is not prime. Time : 1023.932 sec. These are numbers from a AMD Sempron (1.8ghz). Note the difference in time. 777777*2^2447201 is not prime. Time : 291.314 sec. 777777*2^2447241 is not prime. Time : 289.005 sec. 777777*2^2447301 is not prime. Time : 293.603 sec. 
20081106, 21:59  #4 
Sep 2004
2×5×283 Posts 
So?

20081106, 22:15  #5  
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
5357_{10} Posts 
Quote:
Or you can go to the benchmark page to compare systems. http://www.mersenne.org/report_benchmarks/ 

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