On Thu, 20 Jul 2006, Jacek Becla wrote:
> The number of CPU needed is 5,329 (on old AMD Opteron 1.8 MHz).
> As we concluded on the phone, the numbers seems quite
> acceptable =)

I estimate this corresponds to about 12 TF (sustained).  

To summarize the Archive Center design as it is now...

Operation                    #Nodes  CPUs/Node  Est. TF (sus.)
  Pipeline Processing        458         8        73
    Nightly Processing          201      8           32
    Extended (re-)Processing    201      8           32
    On-demand processing         20      8            3.2
    Fileservers                  16      8            2.6
    Spares                       20      8            3.2
  Archive Operations         148         8        24
    Portal/Web Services          16      8            2.6
   *Community DB Access          16      8            2.6
    DB Ingest Support            16      8            2.6
    Image Ingest/Replication     16      8            2.6
    Fileservers                  64      8           10
    Deep Storage Management      20      8            3.2
    
Total                        606                  97

Obviously, the power dedicated to user queries (*) does not hit Jacek's 
requirement; however, overall it seems that we have more than enough total 
power, so we might consider if there is a sensible shifting we can do.  

cheers,
Ray




_______________________________________________
LSST-data mailing list
[email protected]
http://www.lsstmail.org/mailman/listinfo/lsst-data

Reply via email to