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Will MPI overhead be reduced going from ifort to ifx

Anders_S_1
New Contributor III
‎03-31-2023 12:04 PM
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Hi

If I remember correctly, MPI overhead has been reduced in ifx. Can this reduction in itself motivate going to ifx for MPI projects with no GPU etc. involved?

Best regards

Anders S

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Ron_Green
Moderator
‎04-03-2023 11:07 AM
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IFORT and IFX use the same ABI, and MPI libraries are external libraries.  We use the same, unchanged, interfaces to call external libraries.  In addition, for Coarray Fortran we have made no changes, and there are no differences between IFORT and IFX.

 

Any overhead reduction will come from MPI, not from anything in our compilers.

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Ron_Green
Moderator
‎04-03-2023 11:07 AM
769 Views
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IFORT and IFX use the same ABI, and MPI libraries are external libraries.  We use the same, unchanged, interfaces to call external libraries.  In addition, for Coarray Fortran we have made no changes, and there are no differences between IFORT and IFX.

 

Any overhead reduction will come from MPI, not from anything in our compilers.

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