Types of parallelism in ab initio

In Ab Initio having three types of Parallelism.
Parallel computing is the simultaneous performance of multiple operations.Ab Initio Uses the three main types of parallel computing::
1.Component Level Parallelism
2.Pipeline Parallelism
3.Data Parallelism

1.Component level Parallelism:: An application with multiple components running simultaneously on separate data uses component parallelism.
2.Pipeline Parallelism :: An application with multiple components running simultaneously on same data uses component parallelism.
3.Data Parallelism:: An application with data divided into segments that operates on each segment simultaneously uses Data Parallelism.
It is common for applications to take advantage of all three types at the same time in ab initio.

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sort component use before this components in ab initio

Some components required presorted data because they group adjacent records by a common key.if your data is not sorted,use the sort component before any of the following components:
this is also increase performance tuning in ab initio.

Aggregate

Merge

Dedup sorted

Denormalize or accumulate

Match Merge

Merge Join

Rollup

Scan

if you use sort before this components data process increases this is also performance tuning tip in ab initio.

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File Extensions in Abinitio

They are few file type extensions you must know in abinitio before you learn

those are listed below
.mp means graphs
.dbc means database table files
.dat means data files
.dml means record format files(Data manipulation language)
.xfr means transform function files
.mpc means program template files or custom program components
.mdc means dataset template files or custom dataset components
.ksh means shell scripting file we use this file for client sharing

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Runtime Status of graph in abinitio

the GDE(Graphical Development Environment) displays round colored indicators to show the status of each component during run time in abinitio

white colour means unstarted the abinitio graph
Green colour means running the abinitio graph
Red colour means error in the abinitio graph
Blue colour means success or done the abinitio graph

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