[PrimeGrid]Genefer (World Record)运算时间太长了

ledled

用GTS450跑了快4天才完成37%，勉强能赶在3月17日前算完……

这WU让我想起了CPDN，而且中途还不给分，有谁用480级别的跑过这些WU？最终有多少得分？

ncw2000

贴新闻，不解释
There is a setting on the PrimeGrid preferences page called "GeneferCUDA Block Size". This can be used to vary the kernel size within GeneferCUDA.

For any specific computer, there is a particular value of the block size that produces the fastest calculations at each value of n. This optimal value is likely to be different for the Short work units and the Long (World Record) work units.

Besides changing the speed of the calculation, making this number larger generally reduces the amount of CPU usage, but may increase screen lag.

Decreasing this number may help with screen lag, but may increase CPU usage.

The default value is zero, which lets Genefer choose the best value. Under Windows, this value is 7 for the Short work units and 8 for the Long (World Record) work units. The optimal values for Linux and Mac are still being decided, but the default setting of 0 will work well.

Usually, there will be no need to change this value. However, as we start searching the larger N values we will be working in an environment that is new, and it may be necessary to adjust these values. Therefore, it may be beneficial for this setting to be easily adjustable.

EDIT: Updated with more up to date information about the effects of changing the block size.

refla

回复 1# ledled

PrimeGrid 的勋章颁发规则是怎样的？

ledled

回复 3# refla


    搜索PrimeGrid Badges找不到什么，反而Team 2ch Wiki有提到勋章
    http://team2ch.info/PrimeGrid/#sbaea257

    其实Wikia也有的，只是没做成表格被我华丽地无视了
    http://primegrid.wikia.com/wiki/PrimeGrid_Wiki#Badges

PrimeGrid awards badges to users in recognition of achieving certain defined levels of credit for work done. The badges are of no intrinsic value but are valued by many as a sign of achievment. The issuing of badges should also benefit PrimeGrid by evening out the participation in the less popular sub projects.
The current badge levels are:

"Colours": Bronze/Silver/Gold/Amethyst/Ruby
For LLR projects: 10 / 100 / 500 / 1000 / 2000 thousand credits;
For Sieve/AP/GFN/PSA projects: 20 / 200 / 1000 / 2000 / 4000 thousand credits.
Higher credit is required for the sieving projects due to the use of 64 bit Operating Systems and (as of May 2010) Graphic Processing Units giving a higher credit per hour of computer time than most BOINC tasks.
Some users have achieved a "Full Set" of all available subprojects. PrimeGrid users are encouraged to announce this achievment at

http://www.primegrid.com/forum_thread.php?id=1482 .

At the time of writing the available badges are :-

Sieving :-

Proth Prime Search Sieve,
The Riesel Problem Sieve,
Cullen/Woodall Sieve.

LLR :-
Proth Prime Search LLR,
321 LLR,
The Riesel Problem LLR,
Cullen Prime Search LLR,
Woodall Prime Search LLR,
Prime Serpinski Problem LLR,
Seventeen or Bust LLR,
Sophie Germain Prime Search LLR,
Genefer.

Other :-
PSA (not counted by some as it is not a BOINC project).
Past projects for which some PrimeGrid users have badges are :-
321 Sieve,
Arithmetic Progression of 26 primes,
Prime Serpinski Problem/Seventeen or Bust Sieve,
Twin Prime search.

refla

谢谢

acp134

拿GPU算这个项目的时候卡机了……所以果断放弃了……