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Unfortunately, Narval's AMD processors are ''incompatible'' with the [https://en.wikipedia.org/wiki/AVX-512 AVX512] instruction set (from https://en.wikipedia.org/wiki/Skylake Skylake] onwards | Unfortunately, Narval's AMD processors are ''incompatible'' with the [https://en.wikipedia.org/wiki/AVX-512 AVX512] instruction set (from https://en.wikipedia.org/wiki/Skylake Skylake] onwards] on the [[Béluga/en#Node_characteristics|Béluga]] and [[Niagara#Node_characteristics|Niagara]] nodes, as well as the more recent nodes on [[Cedar#Node_characteristics|Cedar]] and [[Graham#Node_characteristics|Graham]]. Consequently, applications compiled on those relatively recent Intel nodes will probably not function on Narval and recompiling will certainly be necessary (see ''Intel compilers'' below). |