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io500:start [2018/05/23 10:09]
kunkel [Submit for the next list]
io500:start [2019/02/04 15:09] (current)
kunkel
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-{{indexmenu_n>​2}}+{{ :​io500:​logo-io500.png?​200}} 
 +===== IO-500 =====
  
-{{:​io500:​logo-io500.png?200}}+This is an intermediate list based on corrected calculations((We fixed the computation of the mdtest score that had a bug by computing the rate using the external measured timing.)) ​ for the IO-500 **ranked list**((That means only those entries that qualify according to the wish of the submitter are contained.)) from November 2018 (from [[https://​sc18.supercomputing.org|SC 2018]]).
  
-<io500>  +Please see also [[io500:list:19-01:​10node|the 10 node challenge ranked list]].
-date=2017-11 +
-</​io500>​+
  
-===== IO500 List ===== +The list shows the best result for given combination ​of system/institution/filesystem.
- +
-The above table shows the current IO500 list as of SC17.  By default the merely ​shows the top-level summary information. +
- +
-===== Expanding the table ===== +
- +
-To show more data, such as the individual benchmark scores, use the "Add column"​ drop-down box above. ​ There are shortcuts, such as ior.*, to add all of the individual benchmarks within ​group. ​ The three groups are the bandwidth scores, as measured with ior, the metadata scores, as measured with mdtest, and the find scores (currently just one), as measured with the find utility. +
- +
-===== Adding custom columns ===== +
- +
-To add a custom (i.e. derived) column, merely enter an equation in the Equation field above. +
- +
-For equations you may use variables, i.e., use the group name of the metrics you want to use and replace space in the variable name with underscore, for example: +
-  * io500.score ​information.client_nodes +
-  * io500.bw ​information.client_nodes +
-  * mdtest.easy_create / information.client_nodes +
- +
-If the metrics name is unambiguous,​ you may omit the group name, i.e., the following is valid: +
-  * score / client_nodes +
-  * bw / client_nodes +
-  * easy_create / client_nodes +
- +
-====== Scoring information ====== +
- +
-The score by which the ranking is computed is the '​score'​ column. ​ This '​score'​ column is merely the square root of the product of the '​bw'​ and '​md'​ scores. ​ The '​bw'​ score is the geometric mean of the IOR scores and the '​md'​ score is the geometric mean of the mdtest scores and the find scores.+
  
 +<​io500> ​
 +date=2019-01
 +version=v3
 +radar=false  ​
 +bestOnly=true ​
 +</​io500> ​
  
-====== Further information ====== 
  
-  * [[events:2017:bof-sc-bof|Detailed analysis of the first list are available in the slide deck from our SC BoF]] +{{https://​www.vi4io.org/​assets/​io500/​2019-01/data.csv|Download ​the full list with all data as CSV}}
-  * [[std:​io500:​start|For details of the approach, see the IO-500 effort]]+
  
-====== Submit for the next list ====== 
  
-Please consider submitting your own result to make it onto the next list! +//Values with* indicate that a value for the computation was missing.//
-Instructions are provided on the [[io500:​submission|submission page]].+
  
 +See also [[io500:​list:​19-01:​10node|the 10 node challenge ranked list]].
  
 +Further lists with more detail can be found on the navigation menu.
 +For example, [[:​io500:​list:​19-01:​full|the full list with radar chart and configurable scoring]].