IBM-HPC: does not build on Power8 with GCC due to vector unit checking and instrinsics about hh-suite HOT 9 CLOSED

ping @meiermark, @martin-steinegger

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As you metioned already correctly you need to alter two files to add the support. You need to check for POWER8 in CheckSSEFeatures.cmake and add all needed compiler flags to the SSE_FLAGS variable. After this you have to add the VSX intrinsics to the simd.h power8 code path. We sadly can't help you with that, since none here has any expertise with POWER.

from hh-suite.

Got CMake to run to completion. That's good. But, make then chokes. Not so good. The reason is that PowerPC vector intrinsics are not quite 1-to-1 with intel intrinsics.
Question: Is there a regression test to ensure that changes to codebase meet some minimum correctness?

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We dont have regression tests. We normally benchmark our software before we release it. Maybe we can give you our benchmark set and you can run it. Does HHblits produces the sames scores as on an SSE machine?

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Any of set of tests that will verify functionality after replacing Intel with PowerPC intrinsics will be sufficient. If you provide instructions on where to obtain and how to run the tests, the changes should be completed in a day or so.

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Did you finish the PowerPC implementation? @meiermark can you make the benchmark set and scripts for the fold regonition test available for danparrot?

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Sure. The corresponding private bitbucket repository is still under development.
How may I invite you?

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Do I understand it correctly that 3342110 essentially discontinued David Miller's ppc64le support? We're trying to build the most recent hh-suite on an IBM AC922, but cmake complains about SSE2 missing. The architecture-specific definitions in src/simd.h are still there, however.

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Could you make a new issue please?
We don't have any PPC systems and last time I checked there were no free continuous integration solutions for PPC. I am not sure how to keep the PPC build from not breaking without having a CI system, so I am also not very happy about maintaining PPC support.

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