Abinitio - What is the difference between the flows of 3 parallelisms

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What is the difference between the flows of 3 parallelisms

Total Answers and Comments: 4

Last Update: June 22, 2009 Asked by: malhotraa08

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July 20, 2008 12:07:55

sixto.dsilva

Member Since: March 2008 Contribution: 59

RE: What is the difference between the flows of 3 parallelisms

flows of 3 parallism is nothing but the data set is divided into 3 partitions and it is processed. I don't know difference of flows of 3 paralleisms.

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August 13, 2008 05:37:10

srinivas.rao.etl

Member Since: August 2008 Contribution: 2

RE: What is the difference between the flows of 3 parallelisms

Parallelism's are of 3 types:

1. Component Parallelism: All program components runnings simultaneously on different data sets.

2. Pipeline Parallelism: All program components runnings simultaneously on same data sets. we can break the pipeline parallelism using all sort based components.

Ex: sort sort within groups AGG Rollup Join etc.

3. Data Parallelism: Distributes data records into multiple locations using partition components.

Thanks
Srinivas Rao

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October 18, 2008 03:22:06

ravula sudheer

Member Since: October 2008 Contribution: 7

RE: What is the difference between the flows of 3 parallelisms

ab initio supports parallilesm..
parallilesm 3 types
1.component parallilasem: graph running the data sumaltenously on seperate data uses. every component graph creates one component process ..this is calles component parallilesm.. example: replicate

2.data parallilesm : when we used the partition componets in the graph .the graph support the data parallilesm .. data divided into segments..process the each segmented data..this process is called data parallilesm .. supports broadcast component.

3.pipeline parallilesm: in the graph running the data sumultanously using same data.
data processing on upstream component to down stream component same data.
every component supports pipeline parellilesm ..some components does't supports pipeline patallilesm they are sort component.

this answer help full to u
sudheer

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June 22, 2009 16:46:06

sixto.dsilva

Member Since: March 2008 Contribution: 59

RE: What is the difference between the flows of 3 parallelisms

I think i misunderstood the question there are 3 type of parallelisms in Ab Initio details of 3 types are expalined correctly above with difference.

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