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cluster:174 [2018/08/27 14:03]
hmeij07
cluster:174 [2018/08/27 15:20]
hmeij07
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 ==== SQL on GPU ==== ==== SQL on GPU ====
 +
 +MapD built the first ever open source SQL engine to harness GPU computing for analytics. Designed for maximum performance,​ the MapD SQL engine dynamically compiles SQL to run across multiple GPUs and CPUs. Massively parallel database servers.
 +
 +  * http://​www.mapd.com
  
 ** Browser ** ** Browser **
  
-Log into one of the tails like petal, swallowtail or cottontail2 preferably, and with x11-forwarding enabled+Log into one of the tails like petaltail, swallowtail or cottontail2 preferably, and with x11-forwarding enabled ​go to port 9092 of node ''​n37''​ and create a dashboard. Use the "​data"​ subnet (10.10) eth1. 
 + 
 +  * http://​n37-eth1:​9092
  
-  * http://​10.10.102.47:​9092 
   - Click New Dashboard.   - Click New Dashboard.
   - Click Add Chart.   - Click Add Chart.
   - Click SCATTER.   - Click SCATTER.
   - Click Add Data Source.   - Click Add Data Source.
-  - Choose the flights_2008_10k ​table as the data source.+  - Choose the flights_2008_7M ​table as the data source.
   - Click X Axis +Add Measure.   - Click X Axis +Add Measure.
-  - Choose depdelay.+  - Choose depdelay. ​(departure delay)
   - Click Y Axis +Add Measure.   - Click Y Axis +Add Measure.
-  - Choose arrdelay. +  - Choose arrdelay. ​(arrival delay)
- +
-7 million records, amazingly fast. There are pie, bar, stacked bar, bubble etc charts and point maps or chloropleth maps. A SQL editor. ​ And I do not even observe a blip on gpu utilization.+
  
 +7 million records, amazingly fast. I mean  like < 50 ms (milliseconds). There are pie, bar, stacked bar, bubble etc charts and point maps or chloropleth maps. A SQL editor. ​ And I do not even observe a blip on gpu utilization. Each of these K20 nodes still has 7 drive bays available which would allow for a large database storage platform if we had a mapd project.
  
 +{{ :​cluster:​dep-arr-scatterplot.png?​nolink&​400 |}}
  
  
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   * https://​www.mapd.com/​docs/​latest/​3_mapdql.html   * https://​www.mapd.com/​docs/​latest/​3_mapdql.html
-  * can be scripted ​too+  * can be scripted ​using mapdql
  
 <​code>​ <​code>​
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 flights_2008_7M flights_2008_7M
  
-mapdql> SELECT origin_city AS "​Origin",​ dest_city AS "​Destination",​ AVG(airtime) AS "​Average Airtime"​ FROM flights_2008_7M WHERE distance < 175 GROUP BY origin_city,​ dest_city;+mapdql> SELECT origin_city AS "​Origin",​ dest_city AS "​Destination", ​ 
 +AVG(airtime) AS "​Average Airtime"​ FROM flights_2008_7M ​ 
 +WHERE distance < 175 GROUP BY origin_city,​ dest_city;
 ... ...
 Portland|North Bend|46.12162162162162 Portland|North Bend|46.12162162162162
cluster/174.txt · Last modified: 2018/08/28 08:38 by hmeij07