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No of parallelism if we set to 2 what happens

what is teh advantage of no of paralellism and if we set it to 2 what happens.

thank you very muchf or the helpful info.

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  • author's profile photo Former Member
    Former Member
    Posted on Feb 03, 2012 at 03:28 AM

    Each Data Flow will initiate threads depending on the number of objects used inside. DOP helps each thread to process on a different CPU in the computer. If you set DOP = 2, a query transform used inside the Data Flow will be split into two logically while running and will be processed parallely. This makes the transformation / data flow faster. You have to take care of other parameters like source/target table partitioning and parallelism of functions to make use of this feature effectively.

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  • author's profile photo Former Member
    Former Member
    Posted on Feb 03, 2012 at 05:50 AM

    Hi ,

    The basic point is that when the no of process increases , jobs will run more efficiently becoz the processes to support these jobs have been increased now.

    Complete mechanism is available here ::

    http://wiki.sdn.sap.com/wiki/display/BOBJ/DegreeofParallelism

    Regards,

    Arpit

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  • author's profile photo Former Member
    Former Member
    Posted on Feb 09, 2012 at 09:18 AM

    Hi cplusplus1 ,

    the parallelism is a performance activity , the advantage of paralellism is it improve performace like instead of scheduling the data in a single sequence it will split the process into 2 or more depending upon the settings which you have given.it will process parallelly and it will reduce the total time of job execution

    Thanks

    Fasi

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