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WRF on Power10 Cloud

J

JTachos

New member
At Tachos HPC, we are working on a Power10 cloud HPC system, and I have been getting very good performance out of WRF. However, I'm just using the gcc build in a very hacky way, as the Power options in the build files are out of date. For example, we now use either gcc, clang, or ibm-clang. I would like to help update the P10 build if I can, or if there is a WRF developer who wants to do this themselves, I can hook you up with IBM directly.

I should add that we have some significant advantages over x86, principally far more memory bandwidth per core than what you will find on AWS or Azure HB series. If you are looking for a good cloud HPC service, let's talk about benchmarking your workload.

But mainly, I'd like to get these build files updated in a clean way.
 
JTachos said:
At Tachos HPC, we are working on a Power10 cloud HPC system, and I have been getting very good performance out of WRF. However, I'm just using the gcc build in a very hacky way, as the Power options in the build files are out of date. For example, we now use either gcc, clang, or ibm-clang. I would like to help update the P10 build if I can, or if there is a WRF developer who wants to do this themselves, I can hook you up with IBM directly.

I should add that we have some significant advantages over x86, principally far more memory bandwidth per core than what you will find on AWS or Azure HB series. If you are looking for a good cloud HPC service, let's talk about benchmarking your workload.

But mainly, I'd like to get these build files updated in a clean way.
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what exactly do you need? I may be able to help not sure
 
I would like to get the main build script updated in official repo to support modern Power platforms if that is possible, since Power8 is no longer supported by IBM. Do they accept outside contributions?
 
Excellent - Power10 is a great platform for WRF based on my benchmarks, so if I can get it building out of the box, that'd be great.
 
Hi @JTachos, let's see if we can get something together either for the v4.6.1 minor release or at the very least v4.7.0

If there aren't egregious errors, I think it might be as straight forward as adding a new configuration stanza.
 
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