Server Processors

[sanders]

Hi,

I have up till now used Intel Fortran under Windows and also Intel MPI on Intel CPUs. Has anybody experiences from moving to AMD CPUs from such an Intel-based ecosystem? Will Intels OneAPI work on AMD CPUs?

Best regard/Sanders

[hardcoregames_]

Intel's FORTRAN output does run on contemporary AMD fine. I have a friend who I have helped with FORTRAN make a new test programs for benchmarking.

I suggest C++ is probably as efficient which is more popular than FORTRAN which is comparatively rare these days.

There is F2C available. AMD also had a compiler https://developer.amd.com/amd-aocc/ and it supports flang along wth clang

I have 15 years of experience with mainframes and FORTRAN. If you have any issues I can help. FORTRAN IV through FORTRAN 90.

[bredsj]

Fortran is still widely used in the scientific community! So FORTRAN is not rare I would suggest. I regularly work in FORTRAN.

[vtangutu]

Hello Sanders

Yes Intel OneAPI compilers do work on AMD platforms

AMD has its own Optimized compiler toolchain for C C++ and Fortran
It is highly optimized for x86 targets, especially for AMD “Zen”-based processors.

Website: https://www.amd.com/en/developer/aocc.html
User guide:  https://www.amd.com/content/dam/amd/en/documents/pdfs/developer/aocc/aocc-v4.0-ga-user-guide.pdf

Best Regards
Hemanth

[kevin2023]

Hello Hemanth,

please also see this report. https://forum.ansys.com/forums/topic/fluent-2022-r1-slow-bandwitdth/

It looks the latest version of ansys fluent run slowly on AMD epyc CPUs. I am not sure if its a bug or what.

Thanks. 

[shrjoshi]

Hi @kevin2023 

Can you please share the below details : 

1. OS version and details.
2. System hardware details
3. Compiler details
4. MPI details