Changes between Version 6 and Version 7 of GENIExperimenter/Tutorials/GettingStarted_PartII_ccn/Procedure/Execute


Ignore:
Timestamp:
06/19/14 10:42:39 (10 years ago)
Author:
Vic Thomas
Comment:

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  • GENIExperimenter/Tutorials/GettingStarted_PartII_ccn/Procedure/Execute

    v6 v7  
    7474 2. Once you are logged in, ask for precipitation data from 1 Jan 1902 to 2 Jan 1902:
    7575     {{{
    76         /opt/ccnx-atmos/client.py
    77         Start Date in YYYY/MM/DD? 1902/01/01
    78         End Date in YYYY/MM/DD? 1902/01/02
     76     /opt/ccnx-atmos/client.py
     77     Start Date in YYYY/MM/DD? 1902/01/01
     78     End Date in YYYY/MM/DD? 1902/01/02
    7979     }}}
    8080 3. You should see output that looks like:
    … …  
    8484     Asking for /ndn/colostate.edu/netsec/pr_1902/01/02/00, Saving to pr_1902_01_02.tmp.nc
    8585     Time for pr_1902_01_02.tmp.nc 4.65998315811=
    86       Joining files..
     86     Joining files..
    8787     Concat + write time 0.0735998153687
    8888     Wrote to pr_1902_1_1_1902_1_2.nc
    8989     }}}
    9090     Note that it took about 1.1 and 4.7 seconds respectively to retrieve data for Jan 1 and Jan 2
    91 4. Run the client again and request the same data.  This time your output should look like:
    92     {{{
    93     Asking for /ndn/colostate.edu/netsec/pr_1902/01/01/00, Saving to pr_1902_01_01.tmp.nc
    94     Time for pr_1902_01_01.tmp.nc 0.0423700809479=
    95     Asking for /ndn/colostate.edu/netsec/pr_1902/01/02/00, Saving to pr_1902_01_02.tmp.nc
    96     Time for pr_1902_01_02.tmp.nc 0.0388598442078=
    97     Joining files..
    98     Concat + write time 0.0237510204315
    99     Wrote to pr_1902_1_1_1902_1_2.nc
    100     }}}
     91 4. Run the client again and request the same data.  This time your output should look like:
     92     {{{
     93     Asking for /ndn/colostate.edu/netsec/pr_1902/01/01/00, Saving to pr_1902_01_01.tmp.nc
     94     Time for pr_1902_01_01.tmp.nc 0.0423700809479=
     95     Asking for /ndn/colostate.edu/netsec/pr_1902/01/02/00, Saving to pr_1902_01_02.tmp.nc
     96     Time for pr_1902_01_02.tmp.nc 0.0388598442078=
     97     Joining files..
     98     Concat + write time 0.0237510204315
     99     Wrote to pr_1902_1_1_1902_1_2.nc
     100     }}}
    101101    Notice how much faster the data was retrieved this time.
    102 5. If time permits, log into the collaborator node {{{collab}}} and run queries from there. Notice different data retrieval times depending on whether the data came from the datasource, cache at {{{rsrchr}}} or the local cache.
     102 5. If time permits, log into the collaborator node {{{collab}}} and run queries from there.  (Pick dates in 1901 or 1902.) Notice different data retrieval times depending on whether the data came from the datasource, cache at {{{rsrchr}}} or the local cache.
    103103
    104104