Decision Optimization

Decision Optimization

Delivers prescriptive analytics capabilities and decision intelligence to improve decision-making.


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  • 1.  Spark Cplex

    Posted 04/30/20 09:59 AM

    Hello. It's been a little while since I developed an optimization app and I'm trying to come up to speed on the newest IBM capability, specifically DOcplexcloud. I see evidence from some of the marketing materials that the newest tools integrate with Spark. My question -- Is it correct to say that if I had access to Cplex in a spark-enabled cluster environment, that these new optimization center tools + spark would handle distributing the solve in parallel across the cluster? 

    For example, this video:

    https://www.youtube.com/watch?v=6X4FbMP18fI

    It's unclear if spark is actually participating in the solve or just the data input/output?



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    Edward Umpfenbach
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    #DecisionOptimization


  • 2.  RE: Spark Cplex

    Posted 04/30/20 10:46 AM
    The latter is correct.  Spark is only used for input/output, and CPLEX doesn't provide a direct integration with Spark.  So it wouldn't distribute the solve across the cluster.  On the other hand, even if CPLEX doesn't know anything about Spark, you can certainly build a platform with which it is possible to distribute multiple solves across a cluster, each each solve using a single node.

    Note that DOcplexcloud is being replaced with Decision Optimization for Watson Studio. You can find more information in the DO for WS section of https://medium.com/@AlainChabrier/decision-optimization-education-a50cada93856.

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    Xavier Nodet
    Program Manager, Development
    CPLEX Optimization Studio
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