Post
Topic
Board Announcements (Altcoins)
Re: [XPM] [ANN] Primecoin High Performance
by
Trillium
on 10/09/2013, 03:11:58 UTC
What are the best settings for Xeon processors? I'm running 2x 2.66 GHz Xeon's and getting pretty low chains per day:
{
    "blocks" : 157519,
    "chainspermin" : 10,
    "chainsperday" : 1.18470870,
    "currentblocksize" : 1000,
    "currentblocktx" : 0,
    "difficulty" : 9.86931497,
    "errors" : "",
    "generate" : true,
    "genproclimit" : -1,
    "primespersec" : 1754,
    "pooledtx" : 0,
    "sieveextensions" : 6,
    "sievepercentage" : 10,
    "sievesize" : 1000000,
    "testnet" : false
}

Changing sievesize doesn't seem to do much.

The best settings are the default settings. Some very smart people with large resources have gone to great effort to determine those best values. Unless you really know what you are doing then don't change them.

I suspect you think that your chainsperday is low because you over-estimate your Xeons performance. Also, saying you have a 2.66 GHz Xeon is like saying you have a 2.66 meter long car. It doesn't actually mean very much because there are half a dozen Xeons that fit that description. Single core? Dual core? Quad core? How about a model number (eg SL___) or series type (eg Xeon E5####).

If I had to guess, your CPU's are probably the Core-equivalent Xeon's: http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#Core-based_Xeons which were released ~2006-2008 and the performance you are getting is completely reasonable from such CPU. In fact, the poorer quad-core Xeons will also give about that performance too.