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C# and Batch files

Posted on 2014-04-04
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Last Modified: 2014-05-08
hi

can any one suggest me , how can i use parallel programming , to execute a batch file, as the batch file is taking a lot of time to run , and i want to reduce that

1. a batch file  programme loads a file into database .
2. this takes 4 hours right now , which is too much .
3. I want to use parellel programming to , reduce the total time taken by this.
4. can you please help me to suggest that .
5. i am open for other way of doing this. which reduces the time taken to 20 -30 mins at least .



6. i can not use SSIS to load the file as the batch file is written by different vendor , and is not possible to change.
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Question by:BeyondBGCM
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Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 250 total points
ID: 39977429
if the batch file is written by a vendor, you cannot do a lot ...
unless the batch file has options to call with several parameters, so they could be called "in parallel"...
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by:Qlemo
Qlemo earned 250 total points
ID: 39977443
Very difficult to provide sound advice here. You are basically telling us "I want to change the batch file, but I cannot change it". As Guy told, if the vendor does not allow for splitting up the tasks or data into several junks and control that from outside, there is no way to do that.
Depending on what the batch does, it might be impossible to reduce the time needed - if there is nothing you can execute in parallel, you can't, e.g. because there are many steps and they all are build on each other, so need to run strictly in sequence.
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Author Comment

by:BeyondBGCM
ID: 40011591
that's true , that  i can not change the batch file , but as you know calling batch file in c# using System.Diagnostic.Process , can i use Parallel programming to call the batch file


this is like , right now i am calling Batch file with Process class of Systm.Diagnostic, but it is taking a lot of time to run (4 hours)

now , can i use parallel programming , or other mode , to distribute the load of the execution to multiple processor.
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LVL 69

Expert Comment

by:Qlemo
ID: 40011730
No, you can't. Taking four cars to dtive a certain distance will take the same time as with one car, unless you are able to let them drive into different directions.
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Author Comment

by:BeyondBGCM
ID: 40022304
that's fine , thanks :)
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Author Comment

by:BeyondBGCM
ID: 40022333
I've requested that this question be closed as follows:

Accepted answer: 0 points for BeyondBGCM's comment #a40022304

for the following reason:

i accept , that there is no solution to this question.
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Expert Comment

by:Qlemo
ID: 40022334
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Author Comment

by:BeyondBGCM
ID: 40025602
i don't want to go in details of this , as if you can read the book Parallel programming with C# ,by Wrox, they clearly say  , it is possible , but if you say it is not possible , i accept it , i have no time , to get in to the discussion for this. you can close it which ever you want
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Expert Comment

by:Qlemo
ID: 40025605
Your misconception is that you have the means to start parallel processing in C# (or C++ or ...), but no influence on the internals of external utilities you start in parallel. You always need to adapt the job to only do a part of the overall task if you want to split execution.
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Expert Comment

by:Qlemo
ID: 40050956
Closing recommendation: Split
  http:#a39977429
  http:#a39977443
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