Ubuntu
mpich package

Speed of mpirun command

Asked by Ali Razmdideh

Some people says, the mpich which is compiled from the sources is much faster than mpich which is installed with apt (They say more than 3 times). Is it true?

I'm using mpich from ubuntu repositories. So should I compile the mpich-3.2.tar.gz from the sources for much more speed?
Please explain that it's true or not. I'm using ubuntu 17.04.

Thanks
Ali

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actionparsnip
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Best actionparsnip (andrew-woodhead666) said : 		#1

Depends on the way you compile it. If you change the features that are in the application then it will change how it run. Self compiled applications don't make things better by default. You could enable all the features that are not in the Ubuntu build and probably make things slower.

There is no single answer here

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Ali Razmdideh (razmdideh) said : 		#2

Thanks actionparsnip, that solved my question.