<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Hi!</div>
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<div>I have a question regarding the GPU support of GROMACS for MacOS. The newest MacBooks (after 2015) are equipped with AMD GPUs which means that GROMACS cannot be compiled with CUDA. GROMACS could be compiled with OpenCL until MacOS 10.13. But this is not possible for MacBooks which have been updated to Mojave (10.14) because Apple deprecated OpenCL (and OpenGL) in this OS in favor of Metal2. Regarding the improved performance of GPUs especially for nonbonded interactions of biomolecules in bigger systems it would be very useful to use the power of the AMD GPUs in the future. Is there any plan to provide support for Metal2 in new releases of GROMACS in the near future? Or is there another way to compile GROMACS with GPU support under MacOS>=10.14? I tried it with OpenCL, but of course it did not work. I could perfectly compile it without GPU support and run it on CPUs only, but this is not my intention.</div>
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<div>Kind regards,</div>
<div>Falk</div>
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<div>BTW: If this email is better placed in the GROMACS developers list, please move it there. </div></div></body></html>